UFGS 09 67 23.16 Fuel Resistive Resinous Flooring, 5-Coat System.pdf

USACE / NAVFAC / AFCEC / NASA UFGS- 09 67 23. 16 ( Febr uar y 2021)

Pr epar i ng Act i v i t y: NAVFAC Superseding UFGS- 09 67 23. 16 ( August 2010)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Jul y 2021

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 67 23.16

FUEL RESISTIVE RESINOUS FLOORING, 5-COAT SYSTEM

02/21

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALITY ASSURANCE

1.3.1 Qualifications of Certified Protective Coatings Specialist

(PCS)

1.3.2 Coating Work Plan

1.3.3 Design Data

1.3.3.1 Environmental Control System

1.3.4 Test Reports

1.3.4.1 Joint Sealant Test Report

1.3.4.2 Daily Inspection Report

1.3.5 Certificates

1.3.5.1 Qualifications of Certified Industrial Hygienist (CIH)

1.3.5.2 Qualifications of Certified Protective Coatings Specialist

(PCS)

1.3.5.3 Qualifications of Coating Inspection Company

1.3.5.4 Qualifications of QC Specialist Coating Inspector

1.3.5.5 Qualifications of Coating Contractors

1.3.5.6 Joint Sealant Certificates

1.3.5.7 Epoxy Mortar Flooring System Certificates

1.3.6 Product Data

1.3.6.1 Joint Sealant Manufacturer's Instructions

1.3.6.2 Epoxy Mortar Flooring System Manufacturer's Instructions

1.3.6.3 Water-Based Alkaline Degreaser

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 COATING HAZARDS

1.6 JOB SITE REFERENCES

1.7 PATCH TEST DEMONSTRATION

1.8 WARRANTY

PART 2 PRODUCTS

SECTION 09 67 23.16 Page 1

2.1 JOINT SEALANT

2.2 EPOXY MORTAR FLOORING SYSTEM

2.2.1 Primer Coat

2.2.2 Epoxy Mortar Coat

2.2.3 Grout Coat

2.2.4 Urethane Topcoat

2.3 WHITE ALUMINUM OXIDE NON-SKID GRIT

PART 3 EXECUTION

3.1 COATING SAMPLE COLLECTION

3.2 TILE AND TILE ADHESIVE REMOVAL

3.3 JOINT MATERIAL REMOVAL, RE-SAW CUTTING, CRACK CHASING

3.4 DEGREASING

3.5 COATING SYSTEM REMOVAL

3.6 SURFACE PREPARATION

3.6.1 Concrete Masonry Units (CMU) Surface Preparation

3.7 COVE STRIP INSTALLATION

3.8 KEY-IN TERMINATIONS

3.9 CRACK REPAIRS

3.9.1 Install Bondbreaker

3.9.2 Repair Cracks

3.10 PRE-APPLICATION TESTING FOR CONTAMINATION

3.11 COATING APPLICATION

3.11.1 Isolation (Expansion) and Construction Joint Treatment

3.11.2 Contraction Joint Treatment

3.11.3 Primer Application

3.11.4 Epoxy Mortar Application

3.11.5 Primer Application to CMU Walls

3.11.6 Epoxy Mortar Application to CMU Walls

3.11.7 Grout Coat Application

3.11.8 Grout Coat Sanding

3.11.9 Saw Cutting and Sealing Joints

3.11.9.1 Saw Cut Contraction Joints

3.11.9.2 Saw Cut Isolation (Expansion) and Construction Joints

3.11.9.3 Install Backer Rod

3.11.9.4 Joint Sealant Application

3.11.10 Application of Topcoats

3.11.10.1 Non-Skid Grit Broadcast

3.11.10.2 Grout Coat Cleaning

3.11.10.3 First Topcoat

3.11.10.4 Second Topcoat

3.11.10.5 Walkway Stripes and Grounding Rod Markings

3.12 CURING

3.13 FIELD QUALITY CONTROL

3.13.1 Coating Inspector

3.13.2 Inspection

3.13.2.1 Daily Inspection Report

3.13.2.2 Inspection Logbook

3.13.2.3 Inspection Equipment

3.13.3 Adhesion Testing

3.14 FINAL CLEANUP

-- End of Section Table of Contents --

SECTION 09 67 23.16 Page 2

USACE / NAVFAC / AFCEC / NASA UFGS- 09 67 23. 16 ( Febr uar y 2021)

Pr epar i ng Act i v i t y: NAVFAC Superseding UFGS- 09 67 23. 16 ( August 2010)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Jul y 2021

SECTION 09 67 23.16

FUEL RESISTIVE RESINOUS FLOORING, 5-COAT SYSTEM

02/21

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or a f i ve- coat , epoxy mor t ar f l oor i ng syst em wi t h r ef l ect i ve ur et hane t opcoat s, s l i p r esi st ance, and j oi nt wor k.

Adher e t o UFC 1-300-02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e present.

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Criteria Change Request (CCR) .

NOTE: Thi s gui de speci f i cat i on cont ai ns t ai l or i ng opt i ons f or Ar my, Navy, and NASA pr oj ect s. Wher e an Edi t or ' s Not e st at es a par agr aph i s t ai l or ed f or a Ser vi ce or pr oj ect t ype, t he cont ent of t he par agr aph, or a por t i on of t he par agr aph, i s sui t ed speci f i cal l y t o be i ncl uded onl y f or t hat Ser vi ce or pr oj ect t ype.

NOTE: The desi gner must not al t er t he pr oduct s or pr ocesses speci f i ed her ei n wi t hout t hor ough knowl edge of t he need f or t he changes and t he i mpl i cat i ons of t hose changes. Use of al t er nat e coat i ng syst ems must be j ust i f i ed by eval uat i ng

SECTION 09 67 23.16 Page 3 l i f ecycl e cost s usi ng 50 year l i f e as a basel i ne.

NOTE: The epoxy mor t ar f l oor i ng syst em i s appr opr i at e f or use i n: ai r cr af t mai nt enance hangar s, equi pment mai nt enance shops, j et engi ne t est cel l s, and al l ot her i ndust r i al f l oor s wher e r esi st ance t o i mpact , abr asi on, and f uel i s r equi r ed. Benef i t s: Tol er at es hi gh Moi st ur e Vapor Emi ssi on ( MVE) r at es, pr oduces a l evel sur f ace over coar se concr et e, hi gh i mpact r esi st ance, good chemi cal r esi st ance, and may pr ovi de a sui t abl e t opcoat base f or mor e t han 10 year s ser vi ce. Can be r ej uvenat ed by r epl aci ng ur et hane t opcoat s, and non- ski d, onl y. Appr oxi mat e ser vi ce l i f e: Ur et hane t opcoat i ng wi t h non- ski d gr i t at t hr ee or mor e year s. The f l oor i ng syst em i s nei t her conduct i ve nor El ect r o- St at i c Di ssi pat i ve ( ESD) , however , ei t her f or mul at i on i s easi l y desi gned upon r equest .

Thi s speci f i cat i on i s not f or use i n over coat i ng exi st i ng sound coat i ng syst ems.

NOTE: Pr i or t o t he f l oor i ng syst ems i nst al l at i on, a concr et e condi t i on assessment i n accor dance wi t h t he Naval Faci l i t i es Engi neer i ng Ser vi ce Cent er ' s ( NFESC) User s Gui de ( UG) - 2036- SHR i s hi ghl y r ecommended. The condi t i on assessment i s desi gned t o i dent i f y pr obl em f l oor s and el i mi nat e pr emat ur e f l oor i ng f ai l ur es pr oduced by: 1) Coat i ng concr et e wi t h l ow sur f ace st r engt h, 2) coat i ng concr et e wi t h hi gh sur f ace cont ami nat i on l evel s ( such as oi l s, f uel s, f at s, and waxes) , and 3) coat i ng concr et e wi t h a hi gh Moi st ur e Vapor Emi ssi on ( MVE) r at e. The t hi n f i l m f l oor i ng syst em i s sui t abl e f or appl i cat i on t o: A) " Smoot h" or " Coar se" concr et e sur f ace t ext ur es, B) concr et e wi t h a MVE r at e no mor e t han 254 mi cr ogr ams moi st ur e per second, squar e meter 4. 5 pounds moi st ur e per 24 hour s, 1000 squar e feet ( ASTM F1869) , C) concr et e wi t h sur f ace st r engt h gr eat er t han 1. 34 MPa 200 psi ( ASTM D4541) , and D) concr et e wi t h f uel / oi l cont ami nat i on t o a dept h no mor e t han 6. 25 mm 1/ 4 i nch.

NOTE: I f a concr et e f l oor has a Moi st ur e Vapor Emi ssi on ( MVE) r at e mor e t han 254 mi cr ogr ams moi st ur e per second, squar e met er 4. 5 pounds moi st ur e per 24 hour s, 1000 squar e f eet ( ASTM F1869) , appl y a l ayer ed Moi st ur e Reduci ng Syst em ( MRS) pr i or t o t he epoxy mor t ar f l oor i ng syst em appl i cat i on. Use MRS compat i bl e wi t h t he submi t t ed f l oor i ng syst em and appr oved / war r ant ed by t he epoxy mor t ar f l oor i ng syst em manuf act ur er . Appl y t he MRS t o shot bl ast ed concr et e and r educe t he MVE r at e t o l ess t han 254 mi cr ogr ams moi st ur e per

SECTION 09 67 23.16 Page 4 second, squar e met er 4. 5 pounds moi st ur e per 24 hour s, 1000 squar e f eet . MRSs can empl oy combi nat i ons of concr et e seal er s, speci f i c epoxi es, and moi st ur e i nsensi t i ve gr out s, wi t h or wi t hout mesh.

NOTE: I ncl ude Sect i on 03 01 00 REHABI LI TATI ON OF CONCRETE f or mi nor spal l s and sur f ace det er i or at i on r epai r t o dept hs l ess t han t hr ee i nches. Speci f y epoxy mor t ar f or r epai r s t o dept hs no mor e t han 50 mm 2 i nches. Speci f y epoxy concr et e f or r epai r s t o dept hs f r om 25 t o 75 mm 1 t o 3 i nches. Saw cut r epai r s t o dept hs gr eat er t han 25 mm 1 i nch t o a r ect angul ar geomet r y. Fi ni sh r epai r s t o r esembl e sur r oundi ng concr et e usi ng a st ai nl ess st eel t r owel .

I ncl ude Sect i on 32 01 29. 61 PARTI AL DEPTH PATCHI NG of RI GI D PAVI NG f or r epai r of l ar ge spal l s and sever e det er i or at i on t o dept hs f r om 75 t o 150 mm 3 t o 6 i nches. Speci f y Por t l and Cement Concr et e ( PCC) wi t h l ess t han 0. 45 wat er - cement r at i o, l i ght st eel t r owel f i ni sh, and cur e usi ng pl ast i c coat ed bur l ap. Use r ect angul ar geomet r y f or r epai r s wi t h saw cut edges t o a nomi nal r epai r dept h of 150 mm 6 inches . Cur e PCC r epai r f or appr oxi mat el y 30 days pr i or t o t he appl i cat i on of t he f l oor i ng syst em. Do not cur e r epai r s usi ng l i qui d membr ane- f or mi ng compounds.

For r epai r s t o spal l s and sever el y di st r essed concr et e t o dept hs gr eat er t han 150 mm 6 i nches, seek mat er i al gui dance f r om Sect i on 03 30 00 CAST- I N- PLACE CONCRETE and pr ocedur al gui dance f r om t he Amer i can Concr et e and Pavement Associ at i on ( ACPA) Gui del i ne TB- 002. 02P " Concr et e Pavi ng Technol ogy - Gui del i nes f or Ful l Dept h Repai r . " Fi l l r epai r base wi t h a mi ni mum of 50 mm 2 i nches of c l ean, non- r eact i ve concr et e sand over a sui t abl e vapor r et ar der ( 0. 25 mm 10 mi l s pol yet hyl ene sheet i ng) . Fi ni sh r epai r s by l i ght st eel t r owel and cur ed usi ng pl ast i c coat ed bur l ap. Cur e r epai r s f or appr oxi mat el y 30 days, or mor e, pr i or t o t he t he f l oor i ng syst em appl i cat i on. Do not cur e r epai r s usi ng l i qui d membr ane- f or mi ng compounds.

Scar i f y l evel any cur l ed or set t l ed s l ab ends wi t h j oi nt sur f aces di spl ayi ng mor e t han 3. 2 mm 1/ 8 i nch di f f er ence i n ver t i cal hei ght . Resul t i ng sur f aces must cont ai n a hei ght di f f er ence no mor e t han 1. 5 mm 1/ 16 i nch and a sur f ace t ext ur e equal t o I CRI - 310. 2R

CSP 4.

NOTE: I ncl ude Sect i on 03 30 00 CAST- I N- PLACE CONCRETE f or new concr et e s l ab const r uct i on. Empl oy measur es t o cont r ol t he base, subbase, and subgr ade

SECTION 09 67 23.16 Page 5 moi st ur e Moi st ur e Vapor Emi ssi on ( MVE) r at es t o t ot al no mor e t han 169. 0 mi cr ogr ams moi st ur e per second, squar e met er 3. 0 pounds moi st ur e per 24 hour s, 1000 squar e f eet when measur ed on t he sl ab' s sur f ace ( ASTM F1869) . I mpr oper MVE cont r ol s have pr oduced numer ous pr emat ur e coat i ng f ai l ur es. I n addi t i on t o appr opr i at e subbase dr ai nage, speci f y a mi ni mum of 50 mm 2 i nches of c l ean, non- r eact i ve concr et e sand over no l ess t han 0. 25 mm 10 mi l s of pol yet hyl ene sheet i ng ( ASTM D4397) wi t h seal ed l ap j oi nt s. Speci f y concr et e mi x t o be f r ee of accel er at or s cont ai ni ng cal c i um chl or i de and ot her sour ces of chl or i de i on cont ami nat i on. Speci f y t wo passes of a l i ght power t r owel ed f i ni sh and cur e usi ng pl ast i c coat ed bur l ap or equal met hod. Do not cur e concr et e usi ng l i qui d membr ane- f or mi ng compounds. Do not speci f y sur f ace har dener s or dr y shake f i ni sh ( Sect i on 09 97 23 METALLI C TYPE

CONDUCTI VE/ SPARK RESI STANT CONCRETE FLOOR FI NI SH) .

Appr oxi mat el y 60 days f ol l owi ng t he concr et e pour and pr i or t o t he f l oor i ng syst em i nst al l at i on, t est concr et e f or t he MVE r at e and conf i r m r at e i s no mor e t han 254 mi cr ogr ams moi st ur e per second, squar e meter 4. 5 pounds moi st ur e per 24 hour s, 1000 squar e feet ( ASTM F1869) . Consul t ACI 224. 3R " Joi nt s i n Concr et e Const r uct i on, " ACI 302. 1R " Gui de f or Concr et e Fl oor and Sl ab Const r uct i on, " ACI 360R " Desi gn of Sl abs on Gr ade, " and ot her appr opr i at e const r uct i on gui dance.

NOTE: Wher e t i l e i s t o be r emoved pr i or t o t he f l oor i ng syst em appl i cat i on, t est bot h t i l e and mast i c f or t he pr esence of asbest os. I f asbest os i s det ect ed, i ncl ude Sect i on 02 82 00 ASBESTOS REMEDI ATI ON f or r emoval and di sposal .

NOTE: I f f l oor i ng syst em i s t o be appl i ed t o war ehouse f l oor s wi t h heavy f or kl i f t t r af f i c , a semi - f l exi bl e j oi nt seal ant i s r equi r ed i n l i eu of t he speci f i ed f l exi bl e seal ant . Use a semi - f l exi bl e epoxy seal ant wi t h appr oxi mat el y 90 per cent el ongat i on. Do not use semi - f l exi bl e seal ant s i n ar eas exposed t o ext er i or t emper at ur es.

NOTE: I ncl ude Sect i on 01 45 00. 00 10 01 45 00. 00 20 01 45 00. 00 40 QUALI TY CONTROL, as appl i cabl e.

NOTE: I ncl ude Sect i on 01 57 19 TEMPORARY ENVI RONMENTAL CONTROLS. Thi s sect i on def i nes f ugi t i ve dust , gener at ed wast e, hazar dous mat er i al s, hazar dous subst ance, hazar dous wast e, sol i d wast e, SECTION 09 67 23.16 Page 6 const r uct i on and demol i t i on ( CD) debr i s, and l i qui d wast e, and cont ai ns document at i on f or danger ous wast e pr of i l e, wast e i nf or mat i on sheet , wast e i dent i f i cat i on document , wast e gener at i on r ecor d, l andf i l l di sposal f or m, and hazar dous mat er i al reporting.

PART 1 GENERAL

1.1 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e when you add a Ref er ence I dent i f i er ( RI D) out si de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C679 (2015) Tack-Free Time of Elastomeric Sealants

ASTM D412 (2016) Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

ASTM D638 (2014) Standard Test Method for Tensile Properties of Plastics

ASTM D1308 (2002; R 2013) Effect of Household Chemicals on Clear and Pigmented Organic Finishes

ASTM D2240 (2015; E 2017) Standard Test Method for Rubber Property - Durometer Hardness

ASTM D3925 (2002; R 2015) Sampling Liquid Paints and Related Pigmented Coatings

SECTION 09 67 23.16 Page 7

ASTM D4541 (2017) Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers

ASTM D6237 (2019) Standard Guide for Painting Inspectors (Concrete and Masonry Substrates)

ASTM E11 (2020) Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves

INTERNATIONAL CONCRETE REPAIR INSTITUTE (ICRI)

ICRI 310.2R (2013) Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, Polymer Overlays, and Concrete Repair

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 9001 (2015) Quality Management Systems- Requirements

MASTER PAINTERS INSTITUTE (MPI)

MPI 208 (2020) Floor Coating, Thick Film, Primer, for Aircraft Maintenance Facilities

MPI 209 (2020) Floor Coating, Thick Film, Epoxy Mortar, For Aircraft Maintenance Facilities

MPI 210 (2020) Floor Coating, Thick Film, Grout Coat, For Aircraft Maintenance Facilities

MPI 212 (2018) Floor Coating, Thin Film, for Aircraft Maintenance Facilities

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC QP 5 (2012) Standard Procedure for Evaluating the Qualifications of Coating and Lining Inspection Companies

SSPC QP 8 (2015) Standard Procedure for Evaluating the Qualifications of Contracting Firms that Install Polymer Coatings, Surfacings, Linings or FRP Composites on Concrete and Other Cementitious Substrates

SSPC QS 1 (2015) Standard Procedure for Evaluating a Contractor's Advanced Quality Management System

SSPC-TU 2/NACE 6G197 (1997) Design, Installation, and Maintenance of Coating Systems for Concrete Used in Secondary Containment

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.134 Respiratory Protection

SECTION 09 67 23.16 Page 8

29 CFR 1910.1000 Air Contaminants

29 CFR 1926.59 Hazard Communication

1.2 SUBMITTALS

NOTE: Revi ew Submi t t al Descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t , and cor r espondi ng submi t t al i t ems i n t he t ext , t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect . The Gui de Speci f i cat i on t echni cal edi t or s have cl assi f i ed t hose i t ems t hat r equi r e Gover nment appr oval , due t o t hei r compl exi t y or cr i t i cal i t y, wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a " G" t o an i t em i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he pr oj ect .

For Ar my pr oj ect s, f i l l i n t he empt y br acket s f ol l owi ng t he " G" c l assi f i cat i on, wi t h a code of up t o t hr ee char act er s t o i ndi cat e t he appr ovi ng aut hor i t y. Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or Ar chi t ect - Engi neer ; " DO" f or Di st r i ct Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i ct Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy, Ai r For ce, and NASA pr oj ect s.

The " S" c l assi f i cat i on i ndi cat es submi t t al s r equi r ed as pr oof of compl i ance f or sust ai nabi l i t y Gui di ng Pr i nci pl es Val i dat i on or Thi r d Par t y Cer t i f i cat i on and as descr i bed i n Sect i on 01 33 00 SUBMI TTAL

PROCEDURES.

Choose t he f i r st br acket ed i t em f or Navy, Ai r For ce, and NASA pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are [for Contractor Quality Control approval.][for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.] Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Joint Sealant ; G[, [_____]]

Epoxy Mortar Flooring System ; G[, [_____]]

White Aluminum Oxide Non-Skid Grit ; G[, [_____]]

SECTION 09 67 23.16 Page 9

SD-05, Design Data

Environmental Control System

SD-06 Test Reports

Joint Sealant Test Report ; G[, [_____]]

Primer Coat ; G[, [_____]]

Epoxy Mortar Coat ; G[, [_____]]

Grout Coat ; G[, [_____]]

Urethane Topcoat ; G[, [_____]]

White Aluminum Oxide Non-Skid Grit ; G[, [_____]]

Patch Test Demonstration ; G[, [_____]]

Daily Inspection Report ; G[, [_____]]

Adhesion Testing ; G[, [_____]]

SD-07 Certificates

Coating Work Plan ; G[, [_____]]

Qualifications of Coating Contractors ; G[, [_____]]

Joint Sealant Certificates ; G[, [_____]]

Epoxy Mortar Flooring System Certificates ; G[, [_____]]

Qualifications of Certified Industrial Hygienist (CIH)

Qualifications of Certified Protective Coatings Specialist (PCS)

Qualifications of Coating Inspection Company

Qualifications of QC Specialist Coating Inspector

Warranty ; G[, [_____]]

SD-08 Manufacturer's Instructions

Joint Sealant Manufacturer's Instructions ; G[, [_____]]

Epoxy Mortar Flooring System Manufacturer's Instructions ; G[, Water-Based Alkaline Degreaser ; G[, [_____]]

SD-11 Closeout Submittals

Inspection Logbook ; G[, [_____]]

SECTION 09 67 23.16 Page 10

1.3 QUALITY ASSURANCE

1.3.1 Qualifications of Certified Protective Coatings Specialist (PCS)

Submit name, address, telephone number, FAX number, and e-mail address of the independent third-party PCS. Submit documentation that the specialist is certified by SSPC: The Society for Protective Coatings (SSPC) as a PCS, including certification number and date of certification/recertification.

If the PCS is employed by the same coating inspection company to which the coating inspector is employed, this does not violate the independent third-party requirements. The PCS must remain certified during the entire project, and the Contracting Officer must be notified of any change in certification status within 10 days of the change. The PCS must not be the designated coating inspector.

1.3.2 Coating Work Plan

NOTE: For mai nt enance pai nt i ng, add r equi r ement f or pr e- wor k det er mi nat i on of t he exi st i ng sur f ace condi t i on. I f pai nt r emoval i s speci f i ed i n anot her Sect i on i ncl ude t hi s eval uat i on such t hat t he pai nt r emoval oper at i on does not cr eat e excessi ve pr of i l e.

a. Include coating Work Plan in Quality Control Plan.

b. Provide procedures for reviewing Contract Documents immediately after award to identify errors, omissions, and discrepancies so that any such issues can be resolved prior to project planning and development of detailed procedures.

c. Provide procedures for verification of key processes during Initial Phase to ensure that Contract requirements can be met. Key processes must include surface preparation, coating application and curing, inspection, and documentation, and any other process that might adversely impact orderly progression of work.

d. Provide procedures for all phases of coating operations, including planned work, rework, repair, inspection, and documentation. Address mobilization and setup, surface preparation, coating application, coating initial cure, tracking and correction of non-compliant work, and demobilization. Coordinate work processes with health and safety plans and confined space entry plans. For each process, provide procedures that include appropriate work instructions, material and equipment requirements, personnel qualifications, controls, and process verification procedures. Provide procedures for inspecting work to verify and document compliance with Contract requirements, including inspection forms and checklists, and acceptance and rejection criteria.

e. [Provide procedures for determining the existing surface profile under paint, and procedures for ensuring that the profile is not increased beyond the maximum profile specified herein.][_____]

f. Provide procedures for correcting non-compliant work. Detailed procedures are required in advance to avoid delays in meeting overcoat windows as well as to avoid delays in production. Provide procedures for repairing defects in the coating film, such as runs, drips, sags, SECTION 09 67 23.16 Page 11 holidays, overspray, as well as how to correct coating thickness non-compliance, any other areas of repair or rework that might be adversely affected by delays in preparing and approving new procedures.

g. If a procedure is based on a proposed or approved request for deviation, the deviation must be referenced. Changes to procedures must be noted by submittal number and date approved, clearly delineating old requirements and new requirements, so that the records provide a continuous log of requirements and procedures.

1.3.3 Design Data

1.3.3.1 Environmental Control System

Submit design details of the proposed environmental control system to include ventilation, humidity control, and temperature regulation.

Provide calculations for humidity control during separate surface preparation and coating application procedures, ventilation requirements during coating application, and maximum allowable coating application rates to coincide with ventilation. Include basis of design data on local conditions. Provide equipment layout sketches and procedures showing function of each piece of equipment and fail-safe measures. A Certified Industrial Hygienist must approve calculations, work procedures and personal protective equipment.

1.3.4 Test Reports

1.3.4.1 Joint Sealant Test Report

Submit test results that confirm sealant complies with Table Ia requirements. Samples must have been tested within the last three years.

1.3.4.2 Daily Inspection Report

Submit one copy of the daily inspection report to the Contracting Officer within 24 hours of the date recorded.

1.3.5 Certificates

1.3.5.1 Qualifications of Certified Industrial Hygienist (CIH)

Submit name, address, telephone number, FAX number, and e-mail address of the independent third party CIH. Submit documentation that hygienist is certified by the American Board of Industrial Hygiene in comprehensive practice, including certification number and date of certification/recertification. Provide evidence of experience with hazards involved in industrial coating application work.

1.3.5.2 Qualifications of Certified Protective Coatings Specialist (PCS)

Submit name, address, telephone number, FAX number, and e-mail address of the independent third-party PCS. Submit documentation that specialist is certified by SSPC: The Society for Protective Coatings (SSPC) as a PCS, including certification number and date of certification/recertification.

If the PCS is employed by the same coating inspection company to which the coating inspector is employed, this does not violate the independent third-party requirements. The PCS must remain certified during the entire project, and the Contracting Officer must be notified of any change in certification status within 10 days of the change. The PCS must not be

SECTION 09 67 23.16 Page 12 the designated coating inspector.

1.3.5.3 Qualifications of Coating Inspection Company

Submit documentation that the coating inspection company performing all coating inspection functions is certified by SSPC to the requirements of SSPC QP 5 prior to Contract award. The approved coating inspection company must remain and not be changed through completion of the Contract. The coating inspection company must remain so certified for the duration of the project. If a coating inspection company's certification expires, the firm will not be allowed to perform any inspection functions, and all surface preparation and coating application work must stop, until the certification is reissued. Requests for extension of time for any delay to the completion of the project due to an inactive certification will not be considered. Notify the Contracting Officer of any change in coating inspection company certification status. Notify the Contracting Officer of all scheduled and unannounced on-site inspections from SSPC and furnish a copy of all inspection reports.

1.3.5.4 Qualifications of QC Specialist Coating Inspector

Submit documentation that each coating inspector is employed, and qualified to SSPC QP 5 , Level II, by the selected coating inspection company. Each inspector must remain employed by the coating inspection company while performing any coating inspection functions. In addition to the handwritten records, the inspector must employ an electronic reporting program with functionality as outlined in Table II. The Administrator must be the designated Government Representative for the project.

1.3.5.5 Qualifications of Coating Contractors

NOTE: Sol i c i t at i ons r equi r i ng cer t i f i cat i on f or pr equal i f i cat i on shoul d poi nt out t he exi st ence and l ocat i on of t he cer t i f i cat i on r equi r ement on t he PROJECT I NFORMATI ON FORM. Thi s r equi r ement must be i ncl uded i n t he sol i c i t at i on document s f or t he " pr i or t o Cont r act awar d" r equi r ement t o be enf or ceabl e. Cer t i f i cat i on i s a speci al r esponsi bi l i t y r equi r ement pur suant t o FAR 9. 104- 2 Speci al St andar ds. Thi s i s anal ogous t o r equi r i ng bi dder s t o have a speci f i ed l evel of exper i ence or exper t i se and GAO has sust ai ned t hese t ypes of speci al r equi r ement s.

All Contractors that perform surface preparation or coating application must be certified to SSPC QP 8 and should also be SSPC QS 1 certified prior to Contract award and must remain certified while accomplishing any surface preparation or coating application. The painting Contractors must remain so certified for the duration of the project. If a Contractor's certification expires, the firm will not be allowed to perform any work until the certification is reissued. Requests for extension of time for any delay to the completion of the project due to an inactive certification will not be considered. Notify the Contracting Officer of any change in Contractor certification status. Notify the Contracting Officer of all scheduled and unannounced on-site audits from SSPC and furnish a copy of all audit reports.

[ For OCONUS, non-US territories where documentation is provided that

SECTION 09 67 23.16 Page 13 certified SSPC QP 8 with or without SSPC QS 1 Contractors did not bid and are not available, all Contractors that perform surface preparation or coating application must be certified to ISO 9001 prior to Contract award, and must remain certified while accomplishing any surface preparation or coating application. If a Contractor's certification expires, the firm will not be allowed to perform any work until the certification is reissued. Requests for extension of time for any delay to the completion of the project due to an inactive certification will not be considered.

Notify the Contracting Officer of any change in Contractor certification status. Notify the Contracting Officer of all scheduled and unannounced on-site inspections from the ISO certifying organization and furnish a copy of all inspection reports.

][ Minimum requirements for the installation Contractor are as follows:

Completed three or more jobs within the past two years applying the specified materials to concrete surfaces in which the total area exceeds 18 587 square meters 200,000 square feet . Submit documentation listing location of work, point of contact at job site, total square footage of applied materials, listing of both materials and equipment used, and validation from coating manufacturer documenting quality of materials purchased per job for work totaling 18,587 square meters 200,000 square feet within the past two years. In addition to the above requirements, installation Contractor must be certified by the material manufacturer(s) to install the submitted coatings and sealant. Submit copy of certificates.

] 1.3.5.6 Joint Sealant Certificates

Submit literature documenting the sealant's past performance in automotive or aircraft maintenance shops. Minimum requirements are two or more maintenance shops with joint work totaling 3048 linear meters 10,000 linear feet whereby the sealant has performed for two years with less than one percent combined sealant failures and defects. Include from sealant manufacturer a list of shop locations, total linear feet of sealant applied per shop, shop point of contact, date sealant was applied, and the name of the installed sealant material.

1.3.5.7 Epoxy Mortar Flooring System Certificates

NOTE: Use br acket ed opt i on when MPI cer t i f i ed pr oduct s cannot be obt ai ned.

Provide manufacturer's certification of conformance to Contract requirements.

[ Submit literature documenting the coating system's past performance in aircraft maintenance shops and over floors with high Moisture Vapor Emission (MVE) rates. Minimum requirements are two or more aircraft maintenance shops totaling 3160 square meters 34,000 square feet where the coating system has performed for two years with less than 0.05 percent combined premature coating failures, material defects and surface discoloration; no more than 0.03 percent discoloration from aviation chemicals, tire plasticizers, and UV exposure. Provide a minimum of two additional case histories where successful installation occurred on floor slabs with no less than 254 micrograms moisture per second, square meter

4.5 pounds moisture per 24 hours, 1000 square feet . Include from flooring manufacturer a list of shop locations, total coated area per shop, shop

SECTION 09 67 23.16 Page 14 point of contact, date coating system was applied, successful installation to concrete with high MVE, and the names of the installed coating materials.

] 1.3.6 Product Data

1.3.6.1 Joint Sealant Manufacturer's Instructions

Submit manufacturer's printed instructions to include detailed application procedures, minimum and maximum application temperatures, and curing procedures. In accordance with 29 CFR 1926.59 , include Safety Data Sheets (SDS) for the sealant to be used at the job site.

1.3.6.2 Epoxy Mortar Flooring System Manufacturer's Instructions

Submit manufacturer's printed instructions to include detailed mixing, minimum and maximum application temperatures, acceptable atmospheric and interior climatic conditions, application procedures, curing procedures, and procedures for flooring system maintenance cleaning. Provide explicit instructions detailing surface preparation, recoat windows and remedial actions in case recoat windows are missed, and, if applicable, solvent-wiping between coats with acceptable types and grades of solvents. In accordance with 29 CFR 1926.59 , include SDSs for the coatings to be used at the job site.

1.3.6.3 Water-Based Alkaline Degreaser

Submit manufacturer's printed instructions to include detailed mixing, dilution rate, application procedures, and rinsing procedures. In accordance with 29 CFR 1926.59 , include SDSs for the water-based alkaline degreaser to be used at the job site.

1.4 DELIVERY, STORAGE, AND HANDLING

Store coatings and sealant in spaces with temperatures from 5 to 24 degrees C 40 to 75 degrees F . Inspect materials on site for damage prior to use. Return to manufacturer any packaged materials in dented, rusty, or leaking containers. Return to manufacturer materials with an expired shelf life for testing, and if compliant, reissuing of shelf life extension.

1.5 COATING HAZARDS

NOTE: I ncl ude ei t her Sect i on 01 35 26 GOVERNMENTAL SAFETY REQUI REMENTS or pr epar e i nst r uct i ons det ai l i ng each saf et y el ement f or use wi t h t hi s section.

Ensure that employees are trained in all safety plan aspects. Follow the coating manufacturer's written safety precautions throughout mixing, application, and curing of coatings. Comply with respiratory protection requirements in 29 CFR 1910.134 and safe levels of airborne contaminants in 29 CFR 1910.1000 .

1.6 JOB SITE REFERENCES

Make available to the Contracting Officer at least one copy each of

SECTION 09 67 23.16 Page 15

ASTM D4541, ASTM D6237, SSPC-TU 2/NACE 6G197 , and ICRI 310.2R , including replica standards ICRI 310.2R -CSP 1 through CSP 9, at the job site.

1.7 PATCH TEST DEMONSTRATION

NOTE: Pat ch t est demonst r at i on i s a ver y i mpor t ant par t of t he submi t t al pr ocess. Whi l e i t i s unusual t o r equi r e a t est pat ch pr i or t o t he submi t t ed mat er i al s ' appr oval , t hi s f l oor i ng syst em i s unusual i n t hat i t i s r equi r ed t o per f or m si gni f i cant t asks f or a l ong t i me. Pr oof of Cont r act or c l ai ms, especi al l y under condi t i ons t o be encount er ed i n t he speci f i c pr oj ect , i s consi der ed necessar y.

I f cust omer i s not sat i sf i ed wi t h t he non- ski d gr i t l evel , adj ust ment s t o t he speci f i cat i on can be made. Gr i t coar ser t han No. 60 al umi num oxi de i s not r ecommended. On ar chi t ect ur al f l oor s, non- ski d gr i t br oadcast r at es can r ange f r om none t o appr oxi mat el y hal f t he speci f i ed l evel . To conf i r m gr i t br oadcast i s accept abl e, wal k on cur ed pat ch t est under bot h dr y and wet condi t i ons. Wat er can be used t o s i mul at e t he wet condi t i on.

Prior to the submitted flooring system's approval, apply the complete flooring system to a 3 meter by 3 meter 10 foot by 10 foot square concrete section as prepared in accordance with PART 3 EXECUTION. Within this area, perform three adhesion tests using procedures as detailed in the paragraph ADHESION TESTING. If adhesion testing produces cohesive failures within the concrete, no less than 1 mm 40 mils concrete removed over 95 percent of each pull-off coupon,or adhesion more than 2.75 MPa 400 psi , patch test adhesion is acceptable. If concrete surface preparation was insufficient, apply an additional coating system patch to properly prepared concrete followed by the above adhesion testing. If adhesion results are unacceptable for both the topcoat and the coatings below the grout coat, submit a new coating system manufactured by a different coating vendor. Apply new coating system to a patch and subject this patch to the above requirements for adhesion prior to approval. If customer is not satisfied with the non-skid grit application, adjustments to the specifications can be made. Grit coarser than No. 60 aluminum oxide is not recommended. Immediately following "passing" adhesion results, remove urethane topcoats and grout coat by sanding, repair patch test holes using epoxy mortar, and place a "Key-In Termination" adjacent to patch test perimeter. Perform coarse scarification or pneumatic scabbling as required to remove patch tests failing to meet adhesion requirements.

1.8 WARRANTY

Warranty materials and workmanship for a minimum of one year following completion of flooring and sealant application. The following terms and conditions form a part of the warranty: If the applied coating system develops blisters (chemical), checks, softening, or lifting within one year following application, rework each area at Contractor's expense. The following conditions are excluded from the warranty: A) Concrete cracking, flooring system mirrors cracks in concrete, B) cosmetic imperfections due to scratching and gouging, C) application to metallic concrete finishes

SECTION 09 67 23.16 Page 16

(Section 09 97 23 METALLIC TYPE CONDUCTIVE/SPARK RESISTANT CONCRETE FLOOR FINISH), and D) application to concrete with a MVE rate greater than 282 micrograms moisture per second, square meter 5.0 pounds moisture per 24 hours, 1000 square feet . If the coating system's adhesion is in question, perform one adhesion test per 9.3 square meters 100 square feet as described in the paragraph ADHESION TESTING. To satisfy the warranty, adhesion testing must produce cohesive failures within the concrete, concrete removal over 95 percent of each pull-off coupon, or adhesion no less than 2.8 MPa 400 psi . Each area failing to meet adhesion requirements requires two additional adhesion tests to confirm results.

Within the warranty period, remove to sound material and rework all areas unable to meet adhesion requirements. There must be zero percent sealant failures within one year. Within the warranty period, remove and rework all sealant material that has chemically attacked surfaces or lifting from joint walls. Topcoat cracking over sealant is excluded from warranty.

PART 2 PRODUCTS

NOTE: The speci f i ed mat er i al s ar e not appr opr i at e f or use i n pr i mar y chemi cal cont ai nment , secondar y chemi cal cont ai nment , or on f l oor s subj ect ed t o spi l l s f r om concent r at ed aci ds, bases, and or gani c sol vent s. Consul t wi t h t he Naval Faci l i t i es Engi neer i ng and Expedi t i onar y War ef ar e Cent er ' s ( NAVFAC EXWC) Pai nt s and Coat i ngs Cent er of Exper t i se f or al t er nat i ve coat i ng syst ems t o sui t speci f i c Navy needs. The syst em must be pr ovi ded by a s i ngl e manuf act ur er or have pr oven compat i bi l i t y .

NOTE: Tabl es I a and I I ar e pr esent ed at t he end of

PART 3 EXECUTI ON.

2.1 JOINT SEALANT

Formulate the joint sealant to exhibit the properties as listed in Table Ia.

2.2 EPOXY MORTAR FLOORING SYSTEM

A five-coat flooring system consisting of primer, epoxy mortar, grout coat, and two urethane topcoats. Apply the system at a nominal thickness of 6.25 mm 1/4 inch and contain an aluminum oxide non-skid grit broadcast. Additional requirements for primer coat, epoxy mortar, grout coat, and urethane top coat are contained in the following sub-paragraphs.

2.2.1 Primer Coat

In addition to the epoxy mortar flooring system requirements, use MPI 208 primer coat.

2.2.2 Epoxy Mortar Coat

In addition to the epoxy mortar flooring system requirements, use MPI 209 epoxy mortar coat compatible with MPI 208 , MPI 210 , and MPI 212 .

SECTION 09 67 23.16 Page 17

2.2.3 Grout Coat

In addition to the epoxy mortar flooring system requirements, use MPI 210 grout coat compatible with MPI 208 , MPI 209 , and MPI 212 .

2.2.4 Urethane Topcoat

In addition to the epoxy mortar flooring system requirements, use MPI 212 topcoat compatible with MPI 208 , MPI 209 , and MPI 210 .

2.3 WHITE ALUMINUM OXIDE NON-SKID GRIT

Size No. 60, dust-free (washed and dry), minimum 99 percent pure, having the following sieve analysis when tested using a 1000 gram 2.2 pound sample ( ASTM E11):

Sieve No. 40 100 percent passing

Sieve No. 50 15-30 percent retained

Sieve No. 60 70-85 percent retained

Sieve No. 70 0-15 percent retained

PART 3 EXECUTION

3.1 COATING SAMPLE COLLECTION

The Contracting Officer and QC Manager must witness all material sampling. Notify the Contracting Officer a minimum of three days in advance of sampling. Obtain liquid samples of each component (e.g., primer, intermediate, grout coat, topcoat) by random selection from sealed containers and in accordance with ASTM D3925. Samples may be either individual cans of liquid material or 1.0 liter 1.0 quart quantities of properly mixed, extracted, and sealed liquid material. Label samples by designated name, specification number, batch number, project Contract number, sample date, intended use, and quantity involved. When the applied epoxy mortar system has met the requirements defined in the paragraph ADHESION TESTING, return coating samples to the installation contractor for proper disposal.

[ 3.2 TILE AND TILE ADHESIVE REMOVAL

NOTE: Del et e t hi s Ar t i c l e i f concr et e i s not t i l ed.

Remove 100 percent of tile employing one or more of the following techniques: chipping, scraping, sanding, scarification, high-pressure water, and various hand tools. Remove 100 percent of the tile adhesive using solvents and power scrubbing. Remove residual contamination using hot potable water under a minimum of 27.6 MPa 4,000 psi . Resulting surfaces must appear clean and display the gray color of concrete.

] 3.3 JOINT MATERIAL REMOVAL, RE-SAW CUTTING, CRACK CHASING

NOTE: Hai r l i ne cr acks havi ng no mor e t han 3. 2 mm

SECTION 09 67 23.16 Page 18

1/ 8 i nch wi dt h ar e t ypi cal l y not r epai r ed. However , cr acks gr eat er t han 3. 2 mm 1/ 8 i nch wi dt h can be chased t o a mi ni mum dept h of 12. 5 mm 1/ 2 i nch and seal ed usi ng t he pr ocedur es and mat er i al s speci f i ed f or j oi nt s. Cr acks mor e t han 18. 75 mm 3/ 4 i nch wi dt h can be r epai r ed usi ng ei t her epoxy mor t ar or epoxy concr et e. Seal ed cr acks wi l l assi st i n pr ot ect i ng t he subbase agai nst chemi cal mi gr at i on.

Remove 100 percent of the existing material in all joints including material bonded to joint walls and base. Rigid material may require saw cutting equipment to remove. Joints may be widened up to 3.2 mm 1/8 inch when re-saw cutting. Hairline cracks having no more than 3.2 mm 1/8 inch width are typically not repaired. Cracks greater than 3.2 mm 1/8 inch width can be chased to a minimum depth of 12.5 mm 1/2 inch and sealed using the procedures and materials specified for joints. Cracks more than

18.75 mm 3/4 inch width can be repaired using either epoxy mortar or epoxy concrete. Chase concrete cracks identified for repair and open to a minimum depth of 12.5 mm 1/2 inch below crack surface resulting in crack(s) with smooth vertical walls.

3.4 DEGREASING

On both previously coated and uncoated concrete, degrease entire floor by scrubbing using a hot potable water solution, 49 to 77 degrees C 120 to 170 degrees F , and a concentrated water-based alkaline degreaser. Perform two complete degreasing cycles on the entire floor surface. Allow solution to soak into surfaces prior to scrubbing and remove using hot potable water under a minimum of 27.6 MPa 4,000 psi . Rinsing must be complete when the rinse water appears clear. If the industrial detergent is not biodegradable, collect all rinse water and dispose of as hazardous waste. Squeegees and shop vacuums may be used to collect pooling rinse water. Fans may be used to aid drying of floor surfaces.

[ 3.5 COATING SYSTEM REMOVAL

NOTE: Del et e t hi s Ar t i c l e i f concr et e i s uncoat ed.

Remove 100 percent of the existing coating system employing one or more of the following techniques: shot blasting, chipping, scraping, sanding, scarification, high pressure water blasting, and various hand tools.

Impact tools such as scabblers may be used to remove unsound epoxy mortar flooring systems. In general, a coating system cannot be completely removed by shot blasting and, to attain 100 percent coating removal, requires a combination of the above techniques.

] 3.6 SURFACE PREPARATION

Shot blast entire floor to produce a level of coarseness equal to ICRI 310.2R CSP 3. Overlap each shot blasting pass by 6.25 to 12.5 mm 1/4 to 1/2 inch . Add new shot to shot blasting equipment prior to blasting.

Prepare concrete surfaces inaccessible to shot blasting, perimeter wall bases and under secured equipment, using a diamond disk grinding or light scarification to produce a level of coarseness equal to ICRI 310.2R CSP 2, ICRI 310.2R CSP 4, respectively. Resulting surfaces must appear clean and contain the appropriate surface coarseness level. If the resulting

SECTION 09 67 23.16 Page 19 cleanliness level cannot be determined, place numerous drops of water on surfaces that appear contaminated. If the water drops soak into concrete, the surfaces are hydrocarbon contamination free (oils, grease, skydrol).

If the water drops bead up and do not flatten out, surfaces require additional degreasing as detailed in the Article DEGREASING. Shot blasting coarse concrete or broom finished concrete can produce a coarseness level equal to ICRI 310.2R CSP 5: employ a best-effort attempt to minimize over-shot-blasting of coarse concrete. If coarse concrete is encountered, shot blasting to a level of coarseness equal to ICRI 310.2R CSP 5 is acceptable: however, extremely coarse concrete can require resurfacing prior to the flooring system's installation. Sweep, vacuum, and run a high powered magnet over all surfaces to be coated, including joints.

3.6.1 Concrete Masonry Units (CMU) Surface Preparation

NOTE: Del et e par agr aph i f epoxy mor t ar i s not t o be appl i ed t o t he CMU wal l bases.

Remove 100 percent of coatings 100 mm 4 inches up the base of CMU walls adjacent the flooring space, and prepare surface by power grinding to a resulting level of coarseness equal to ICRI 310.2R CSP 2. If oils/grease are present, degrease in accordance with the Article DEGREASING.

3.7 COVE STRIP INSTALLATION

NOTE: Del et e par agr aph i f epoxy mor t ar i s not t o be appl i ed t o t he CMU wal l bases.

Install a continuous cove strip at a nominal height of 100 mm 4 inches up each CMU perimeter wall base. Install a solvent-resistant cove strip using a solvent-resistant adhesive.

3.8 KEY-IN TERMINATIONS

NOTE: I f t he epoxy mor t ar f l oor i ng syst em i s t o be appl i ed up t he CMU wal l bases, a Key- I n t er mi nat i on i s not r equi r ed adj acent t hese wal l s.

Place the "Key-In" termination as detailed in SSPC-TU 2/NACE 6G197 Figure 8 at transition surfaces, directly below doorways, and adjacent walls, floor drains, drain grates (interior side), and all other obstructions embedded into the floor slab. The Key-In termination must contain one vertical wall at a depth from 9.4 to 15.6 mm 3/8 to 5/8 inch and, leading down to the resulting vertical depth, a sloped surface from 37.5 to 50 mm 1-1/2 to 2 inches . A hand held concrete saw can be used to cut the correct vertical depth followed by power tool grinding to create a sloped surface. Remove concrete dust by vacuuming.

3.9 CRACK REPAIRS

Use the "Elastomeric Underlayer Crack-Bridging Design" as detailed in SSPC-TU 2/NACE 6G197 Figure 7 over the surface of epoxy mortar filled

SECTION 09 67 23.16 Page 20 cracks.

3.9.1 Install Bondbreaker

Install bondbreaker, either solvent-resistant bondbreaker tape or a 3.2 to

6.25 mm 1/8 to 1/4 inch No. 20-No. 40 mesh silica sand layer, to the base of previously chased cracks identified for repair. For cracks without a rigid base, install suitably sized fiberboard to a depth of 12.5 mm 1/2 inch below floor level and with bondbreaker over exposed fiberboard.

Install bondbreaker to cover the crack's horizontal base and continuously span the entire crack length. Bondbreaker application prevents epoxy mortar from penetrating deep into cracks. Use bondbreaker tape no more than 150 microns 6 mils thick. In this application, the use of backer rod is prohibited.

3.9.2 Repair Cracks

Using the specified materials, prime interior crack walls and apply epoxy mortar directly into wet primer. Finish epoxy mortar level with floor and without feathered edges. When cured, remove mortar imperfections by sanding flush with adjacent concrete.