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Appendix C SPS Section 708—Paint

Beginning on page 726 delete all sections of 708 and replace with the following:

Section 708—Paint

708.1 General Description This section includes the requirements for all paints, including pigments, vehicles, and the compositions of prepared paints for all purposes specified.

708.1.01 Related References

A. Standard Specifications General Provisions 101 through 109

B. Referenced Documents :

QPL 46

SOP 14

AASHTO M 69

Military Specifications MIL-E-698 B MIL-P-23236 or US Corps of Engineers Specification C-200 Federal Test Methods, Standard No. 141

Federal Specification
ASTM
TT-E-489
TT-P-791a
D209
D476
D768
D3021
TT-P-103b
TT-P-1952B
D211
D600
D822
D3721
TT-P-104b
TT-P-266
D234
D602
D1199
D4462
TT-P-320c
TT-T-291
D235
D604
D1648
E97
TT-P-460
TT-V-119
D263

D324 D605 D711

D2805
G23

708.2 Materials

A. Requirements

1. Ingredients

The Engineer shall approve all paint ingredients. Mix the paints in the proportions specified in this section for each kind of paint. The formulas given represent the proportions by weight of the materials to be used.

2. Condition of Mixed Paints Ensure that mixed paints do not liver or curdle, and that the pigments remain in suspension to a reasonable degree satisfactory to the Engineer.

3. Filling and Packaging The manufacturer shall strain paints before filling the containers. The manufacturer also shall ship paints in strong, substantial containers (according to QPL 46) plainly marked with the paint name and number, color, volume, manufacturer name and address, date of manufacture, and the manufacturer’s lot number on every package. The inspection stamp on the paint container will be evidence of approval. Traffic line paint manufactured for the Department shall be delivered in 55 gallon (208 L) drums. The manufacturer shall stencil on the head of each drum the kind of paint, requisition number, purchase order number, and gross and net weights. Ensure that the drums are the removable head types.

4. Finished Paints Unless otherwise specified, deliver paints to the Project or the Department completely mixed and ready for use without adding oils or thinner. Use well ground paints that do not settle or badly cake in the container, and can readily be broken up to a smooth, uniform paint with good brushing consistency. When brushed or rolled on a smooth, vertical surface, the paint shall dry hard and elastic without running, streaking, sagging, or spotting. Use paint for spray application that sprays satisfactorily and does not run, sag, or streak. The first coat of paint applied in the shop or in the field to uncoated structural steel or wood is called the primer coat. The paint covering the primer coat is called the second coat, and the paint covering the second coat is called the third coat.

B. Fabrication The formulas given in this specification represent proportions by weight.

C. Acceptance

1. Testing Test methods for paint analyses shall be according to the Federal Test Methods, Standard No. 141 or the ASTM standard methods of tests for paint.

2. Color Match color visually by comparing with standard color chips obtained from the Office of Materials and Research.

3. Inspection Inspection and analysis will be made at the point of manufacture according to SOP 14. The manufacturer shall assist as necessary, permit the Inspector to test the ingredients before the paint is made, and witness the paint grinding. The Department reserves the right to sample and test all paint at any time before it is used.

4. Tolerances The Department will accept a tolerance of 1 percent of the required value for the paint formulation and property requirements. EXCEPTION: This tolerance does not apply where maximum and minimum values are noted.

D. Materials Warranty The following people shall furnish the Department a certificate of analysis and manufacturer’s guarantee:

· The manufacturer of each brand of paint submitted for acceptance under these Specifications

· All Contractors proposing to use any paint specified in this Section

Ensure that the certificate of analysis shows the paint trade name to be furnished, including a facsimile of the label if the paint is ready-mixed, and an analysis showing the percentage of each of the chemical elements and compounds in the pigment and vehicle. The guarantee shall assert that all paint furnished conforms to the analysis shown on the certificate filed and to the statement of percentages of ingredients shown on the labels, which are required to be on each container. The guarantee shall be sworn to by a person having authority to bind the manufacturer into an agreement.

708.2.01 Paints for Structural Steel A. Requirements

1. Use structural steel paint that meets the applicable requirements of Subsection 708.2 and the following:

· No. 1A, Red Primer (see Table 1). Apply this paint with brush, roller, or airless spray.

· No. 1W, Waterborne Red Primer (see Table 2).

· No. 1 Z, Inorganic Zinc Rich Primer (See Table 3)

· No. 2A, Buff (see Table 4). Apply this paint with brush, roller, or airless spray.

· No. 2B, Aluminum (See Table 5 and Subsection 708.2.01.B, “Fabrication” ).

· No. 2W, Waterborne Intermediate Coat (see Table 6).

· No. 3A, Brown (see Table 7). Apply this paint with brush, roller, or airless spray.

· No. 3B, Green (see Table 8). Apply this paint with brush, roller, or airless spray.

· No. 3W, Waterborne Green (see Table 9).

Table 1—No. 1A, Red Primer, Brushing, Roller, or Airless Spray Type

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
47
Coarse Particles, total residue retained on No. 325 sieve, based on paint, percent by weight
1.0

Fineness of Grind, North Standard

4.5

Viscosity, Krebs Units
81
75
Moisture Content, percent by weight
0.5

Drying Time, hours

Set to touch
6
Dry through
18

Weight, lbs/gal (kg/L)

12.7 (1.52)

Pigment Composition, percent by weight

Zinc Hydroxy Phosphite, ASTM D 4462

Red Iron Oxide ASTM D 3721

Organo Montmorillonite¹
1.0
0.8

Vehicle Composition, percent by weight

Non-Volatile²

Raw Linseed Oil, ASTM D 234

Alkyd Resin Solution, Federal

Specification TT-R-266, Type I, Class ―”A”

Thinners and Driers
34

Thinners, Federal Specification

TT-T-291

Driers, ASTM D 600 Class “C”

Notes: 1. Prewet OrgonoMontmorillonite with 20-30% (95%) methyl alcohol by weight.

2. Ensure that the non-volatile vehicle is composed of 1:1 proportion by weight of raw Linseed oil and alkyd resin, respectively.

Table 2—No. 1W, Waterborne Red Primer

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
76
Coarse Particles, total residue retained on 60 µm sieve, based on paint, percent by weight
0.5

Fineness of Grind, North Standard

4.0

Viscosity, Krebs Units
100
90

Drying Time, hours

Set to touch
3
Dry through
24

Weight, lbs/gal (kg/L)

9.85 (1.18)

Pigment Composition, percent by weight

Red Iron Oxide

Zinc Phosphate

Vehicle Composition, percent by weight

Non-Volatile Binder Solids, HG-54 or HG 56 or approved equivalent

Methyl Carbitol

Texanol

Dibutyl Phthalate

Other Additives
5

Table 3—No. 1Z, Inorgaic Zinc Rich Primer

Requirement
Maximum
Minimum

Zinc Dust, percent by weight

Zinc

99.00

Lead
0.60

Percent by weight of zinc in dried paint film

Elcometer Adhesion of dried paints, psi (MPa)

300 (2.1)

Note: The primer shall be self curing and shall consist of two components, Zinc dust and Ethyl Silicate vehicle. A manufacturer’s product data sheet and a material safety data sheet (DSDS) shall accompany each shipment of Inorganic Zinc Rich Primer. The product data sheet shall contain the following information for the mixed primer:

· Unit Weight,

· Viscosity,

· Volatile Organic Content (VOC),

· Pot Life,

· Percent Solids by Volume.

Table 4—No. 2A, Buff, Brushing, Roller, or Airless Spray Type

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
48
Coarse Particles, total residue retained on No. 325 sieve, based on paint, percent by weight
1.0

Fineness of Grind, North Standard

4.0

Viscosity, Krebs Units
82
75
Moisture Content, percent by weight
0.5
Drying Time, hours
18

Weight, lbs/gal (kg/L)

12.5 (1.50)

Color: Match the Departments Standard Color Chip

Pigment Composition, percent by weight

Zinc Hydroxy Phosphite, ASTM D 4462

Titanium Dioxide ASTM D 476 Type IV

Organo Montmorillonite – prewet with 20 – 30% (95) Methly Alcohol by weight
1.0
0.75
Tinting Pigments ( may be added as predisperesed pigments):
3.5
3.0

Yellow Oxide ASTM D 768

Red Iron Oxide ASTM D 3721

Lampblack ASTM D 209

Vehicle Composition, percent by weight

Non-Volatile² 1:1 proportions by weight of :

Raw Linseed Oil, ASTM D 234

Alkyd Resin Solution, Federal Specification TT-R-266, Type I, Class ―”A”

Thinners and Driers
34

Thinners, Federal Specification TT-T-291

Driers, ASTM D 600 Class “C”

Note 1: For the greatest effectiveness, the Organo Montmorillonite should be prewetted with 20 – 30% (95%) methyl alcohol by weight.

Note 2: The non-volatile vehicle shall be composed of 1:1 proportions by weight of raw linseed oil and alkyd resin, respectively.

Table 5—No 2B, Aluminum

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Aluminum Paste, AASHTO M69, lbs (kg)

2 (0.24)

Aluminum Paste, AASHTO M69, gal (L)
1 (1)

Drying Time, hours

Set to touch
8
2
Dry through
24

Note: Refer to Subsection 708.2.01.B “Fabrication” for additional requirements

Table 6—No. 2W, Waterborne Intermediate Coat

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
62
Coarse Particles, total residue retained on 60 µm sieve, based on paint, percent by weight
0.5

Fineness of Grind, North Standard

4.0

Viscosity, Krebs Units
100
90

Drying Time, hours

Set to touch
3
Dry through
24

Weight, lbs/gal (kg/L)

11.0 (1.32)

Pigment Composition, percent by weight

Zinc Phosphate

Calcium Carbonate

Magnesium Silicate ASTM D 605
12

Titanium Dioxide ASTM D 476 Type IV

Vehicle Composition, percent by weight

Non-Volatile Binder Solids, HG-54 or HG 56 or approved equivalent

Methyl Carbitol

Texanol

Dibutyl Phthalate

Other Additives
5

Table 7—No. 3A, Brown, Brush, Roller, or Airless Spray Type

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment
47
45
Vehicle
55
53

Pigment Composition, percent by weight

Basic Lead Silico Chromate, ASTM D1648
38.0
36.0
Red Iron Oxide – 85%, ASTM D3721
28.0
27.0
Titanium Dioxide, Rutile, Chalk Resistant ASTM D 476 Type
16.5
16.5

Barium Sulfate, ASTM D602

14.5

Organo Montnorillonite

0.6

Tinting Colors (Phthalocyanine blue, Lampblack, and Yellow Iron Oxide
Remainder

Vehicle Composition, percent by weight

Alkyd Resin Solution, Federal Specification TT-R-266, Type I, Class ―”A”

57.0

Raw Linseed Oil, ASTM D 234

Mineral Spirits, driers, antiskinning agents and methanol/water 95/5 – prewet Organo Montmorillonite with 95/5 methanol/water before adding to grind
23

Percent non-volatile vehicle

59.0

Color: Match Federal Standard Colors No. 595-30111

Properties of finished paint weight, lbs/gal (kg/l)

11.5 (1.38)

Viscosity, Krebs Units
75
68

Fineness of Grind, North Standard

4.0

Table 8—No. 3B, Green, Brushing, Roller, or Airless Spray Type

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
60
Coarse Particles, total residue retained on No. 325 sieve, based on paint, percent by weight
0.5

Fineness of Grind, North Standard

4.0

Viscosity, Krebs Units
85
75
Moisture Content, percent by weight
0.5
Drying Time, hours
8

Weight, lbs/gal (kg/L)

10.1 (1.21)

Color: Match the Departments Standard Color Chip

Pigment Composition, percent by weight

Zinc Hydroxy Phosphite, ASTM D 4462

Titanium Dioxide ASTM D 476 Type IV

Magnesium Silicate ASTM D 605
45
40
Organo Montmorillonite – prewet with 20 – 30% (95) Methly Alcohol by weight
1.5
1.2
Chromium Oxide ASTM D263
18
15
Pure Tinting Pigments ( No Chrome Green allowed):
Remainder

Yellow Oxide ASTM D 768

Red Iron Oxide ASTM D 3721

Lampblack ASTM D 209

Phthalocyanine Green ASTM D3021

Vehicle Composition, percent by weight

Non-Volatile² 1:1 proportions by weight of :

Alkyd Resin Solution, Federal Specification TT-R-266, Type I, Class ―”A”

Thinners and Driers
45

Thinners, Federal Specification TT-T-291

Driers, ASTM D 600 Class “C”

Note 1: For the greatest effectiveness, the Organo Montmorillonite should be prewetted with 20 – 30% (95%) methyl alcohol by weight.

Note 2: Chlorinated Copper Phthalocyanine, full strength, oil dispersable

Table 9—No. 3W, Waterborne Green

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment

Vehicle
85
Coarse Particles, total residue retained on No. 60 µm sieve, based on paint, percent by weight
0.5

Fineness of Grind, North Standard

4.0

Viscosity, Krebs Units
100
90

Drying Time, hours

Set to tough
3
Dry through
24

Weight, lbs/gal (kg/L)

9.35 (1.12)

Color: Match the Departments Standard Color Chip

Pigment Composition, percent by weight

Zinc Hydroxy Phosphite, ASTM D 4462

Titanium Dioxide ASTM D 476 Type IV

Magnesium Silicate ASTM D 605
25
Calcium Carbonate
35
Pure Tinting Pigments ( No Chrome Green allowed):
Remainder

Yellow Oxide ASTM D 768

Red Iron Oxide ASTM D 3721

Lampblack ASTM D 209

Phthalocyanine Green ASTM D3021

Vehicle Composition, percent by weight

Non-Volatile Binder Solids, HG-54 or HG 56 or approved equivalent:

Methyl Carbitol

Texanol

Other Additives
5

B. Fabrication

1. No. 2B, Aluminum Prepare the aluminum paint by thoroughly mixing aluminum paste with mixing vehicle.

a. Ensure the paints are well ground, do not settle or cake badly in the container, and are readily broken up to a smooth, uniform paint of good brushing consistency.

b. Use 2 lbs (0.24 kg) of paste to 1.0 gal (1.0 L) of vehicle. Mix this at the factory.

c Ensure a thorough mix with a minimum of stirring. Ensure that the paint shows satisfactory leafing qualities and solidly covers in one coat without running, streaking, or sagging.

d. If applying two coats of aluminum paint, tint the first coat with iron blue paste to help distinguish the two coats.

C. Acceptance See Subsection 708.2.C.

D. Materials Warranty General Provisions 101 through 109.

780.2.02 Traffic Line Paints A. Requirements

Use traffic line paints that meet the applicable requirements of Subsection 708.2 and the following:

1. No. 4C, Black Traffic Line Paint

a. Paint Composition: (See Table 10).

b. Finished Paint:

1) Flexibility: Ensure paint flexibility by following this procedure:

a) Use a doctor blade or other suitable means to apply the paint to a 30-guage (0.39 mm) clean tin plate panel. Apply to a wet film thickness of approximately 2 mils (0.05 mm).

b) Dry the panel in a horizontal position for 18 hours, and then bake it for 5 hours at 220 °F to 225 °F (105 °C to 110 °C).

c) Cool the panel to approximately 77 °F (25 °C) and bend double over a ½ inch rod (13 mm rod). Ensure that the film does not show cracking or flaking upon bending or straightening.

2) Color: Ensure that the paint dries to a pure, flat black and furnishes the maximum amount of opacity and visibility under both daylight and artificial light.

Ensure that the paint does not discolor when exposed to weather or traffic and does not appreciably discolor with stains during service life on either concrete or bituminous surfaces.

3) Weight per gallon (liter): Use paint weighing at least 14.0 lb/gal (67 kg/L) at 77 °F (25 °C).

4) Consistency: The paint viscosity when measured at 77 ºF shall be 85 to 100 Krebs Units.

5) Moisture content: The paint shall contain no more than 0.5% water.

6) Drying: The paint shall dry to no pickup within 45 minutes when tested according to ASTM D 711.

7) Spraying: The paint shall be factory-mixed ready for application through spray machines without using thinners.

8) Storage: The paint shall not cake, liver, thicken, curdle, gel, or show other objectionable properties after storage for 6 months.

9) Coarse particles and skins: The paint shall not contain more than 1.0 percent of coarse particles and skins.

10) Fineness of Grind: The paint shall have a grind of 3 to 5 Hegman scale.

11) Packaging: The finished paint shall be passed through a No. 40 mesh screen while filling the containers.

Table 10—No 4C, Black Traffic Line Paint

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment
43
41
Vehicle
59
57

Pigment Composition, percent by weight

Lampblack ASTM D

3.0

Calcium Carbonnate, ASTM D 1199, Type GC (Note1), Grade 1
34.0
32.0
Diatomaceous Silica, ASTM D 604, Type B
23.0
21.0
Organo Montmorillonite (Note 2)
0.8
0.3

Vehicle Composition, percent by weight

Alkyd resin solution

Petroleum Thinner, driers, and other additives
30

Alkyd Resin Solution Characteristics

Type
Pure Drying Alkyd
Type of oil
Soya Linseed, or a mixture of the two
Non-volatile, percent by weight
61
59
Volatile Type
VM & P Naphtha
Viscosity, Gardner – Holdt
Z5
Z3
Viscosity, at 45% solids
G
D
Color, Gardner- 1953
10
3
Acid number, solids basis
8

Alkyd Resin Solution Characteristics,

Lbs/gal (kg/L) solution
7.75 (0.93)
7.66 (0.92)

Modifying oil iodine number (note 3)

P hthalic Anhydride, percent by weight of non-volatile

Oil Acid, percent
55
48
Compatibility
500% in VM &P Naphtha
Resin and/or Derivatives
None
Phenolic
None

Notes for Table 10:

1. You may use the following chemical composition requirements for calcium carbonate in lieu of those for Type GC. However, all physical properties prescribed for Type GC, Grade 1, are required.

Requirement
Maximum
Minimum
Moisture and other volatile matter, percent by weight
0.2

Total Calcium and magnesium Carbonates, percent by weight Magnesium Carbonate

2. Prewet Organo Montmorillonite with 20-30% (95%) methyl alcohol by weight.

3. Use modifying oil acids, isolated by Federal Test Method No. 141, Method 7031 that have an Iodine Number as specified in Table 870.8, Alkyd Resin Solution Characteristics.

2. No. 5A, Waterborne White Traffic Line Paint

a. Paint Composition: (See Table 11).

b. Finished Paint

1) Flexibility: Apply the paint to a 30 gauge (0.39 mm), clean tin plate panel, to a wet film thickness of approximately 2 mils (0.05 mm). Use a doctor blade or other suitable means.

a) Dry the panel horizontally for 18 hours.

b) Bake the panel for 5 hours at 220 ° to 230 °F (105 ° to 110 °C).

c) Cool the panel to about 77 °F (25 °C) and bend it double over a 1/2 in (13 mm) rod. Ensure that the film does not crack or flake when bent or straightened.

2) Bleeding: Ensure that the paint does not bleed over a bituminous surface type used in Georgia.

3) Color: Ensure that the paint dries to a pure, intense white and furnishes the maximum amount of opacity and visibility under both daylight and artificial light.

Ensure that the paint does not discolor when exposed to weather or traffic and does not appreciably discolor with stains during service life on either concrete or bituminous surfaces.

4) Consistency: Use paint with a viscosity of 80 - 100 Krebs units at 77 °F (25 °C).

5) Drying: Ensure that the paint dries to no-pick-up within six minutes when tested according to ASTM D 711.

Ensure that the paint dries through within 20 minutes when applied at 15 mils (0.38 mm) wet thickness at 77 °F (25 °C).

6) Spraying: Mix the paint at the factory so it can be applied by spray machines without adding thinners.

7) Storage: Ensure that the paint does not cake, liver, thicken, curdle, gel, or show any other objectionable properties after storage for six months.

8) Coarse Particles and Skins: Ensure that the paint contains less than 1 percent of coarse particles and skins.

9) Fineness of Grind: Ensure that the paint has a grind of 2 to 5 Hegman scale.

10) Weight per liter gallon: Use paint weighing at least 14.00 lb/gal. at 77 °F (1.68 kg/L at 25 °C).

11) Packaging: Pass the finished paint through a No. 40 (425 µm) screen while filling the containers.

12) Freeze-Thaw and Heat Stability: Ensure that the paint shows no coagulation, discoloration, or change in onsistency greater than 10 Krebs units, when tested according to TT-P-1952B.

13) pH: Ensure that the pH is greater than 9.5.

Table 11—No. 5A Waterborne White Traffic Line Paint

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment
63
60
Vehicle
40
37
Non-Volatile Vehicle, percent by weight of vehicle
50
42

Pigment Composition, percent by weight

Titanium Dioxide ASTM D 476 Type II Rutile

Calcium Carbonate, ASTM A 1199 Type GC Grade 1
87

Vehicle Composition, percent by weight

Acrylic Emulsion E-2706 or DT211NA (50% NV) or approved equivalent
90
85
Methanol
3.0
1.0
Texanol Coalsecent
5.0
4.0
Other additives
5.0
0.0

Propylene Glycol

3.0

3. No. 5B, Waterborne Yellow Traffic Line Paint

a. Paint Composition: (See Table 12).

b. Finished Paint:

1) Flexibility: Apply the paint with a doctor blade to a 30 gauge (0.39 mm), clean tin plate panel, to a wet film thickness of approximately 2 mils (0.05 mm).

a) Dry the panel horizontally for 18 hours.

b) Bake the panel for 5 hours at 220 ° to 230 °F (105 ° to 110 °C).

c) Cool the panel to about 77 °F (25 °C) and bend it double over a 1/2 in (13 mm) rod. Ensure that the film does not crack or flake when bent or straightened.

2) Bleeding: Ensure that the paint does not bleed on any bituminous surface type used in Georgia.

3) Color: Ensure that the paint dries to a bright yellow that matches color chip #33538 of Federal Color Standard #595B, within the limits of the Highway Yellow Color Tolerance Chart.

Ensure that the paint does not discolor when exposed to weather or traffic and does not appreciably discolor from stains during service life on either concrete or bituminous surfaces.

4) Consistency: Ensure a viscosity of 80 - 100 Krebs units at 77 °F (25 °C).

5) Drying: Ensure that the paint dries to no-pick-up within 6 minutes when tested according to ASTM D 711.

Ensure that the paint dries through within 20 minutes when applied at 15 mils 0.38 mm) wet thickness at 77 °F (25 °C).

6) Spraying: Mix the paint at the factory so it can be applied by spray machines without adding thinners.

7) Storage: Ensure that the paint does not cake, liver, thicken, curdle, gel, or show any other objectionable properties after storage for 6 months.

8) Coarse Particles and Skins: Ensure that the paint contains less than 1 percent of coarse particles and skins.

9) Fineness of Grind: Ensure that the paint has a grind of 3 to 5 Hegman scale.

10) Weight per Gallon (liter): Use paint weighing at least 13 lb/gal (1.56 kg/L) at 77 °F (25 °C).

11) Packaging: Pass the finished paint through a No. 40 (425 µm) screen while filling the containers.

12) Freeze-Thaw and Heat Stability: Ensure that the paint shows no coagulation, discoloration, or change in consistency greater than 10 Krebs units, when tested according to TT-P-1952B.

13) pH: Ensure that the pH is greater than 9.5.

Table 12—No. 5B, Waterborne Yellow Traffic Line Paint

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment
63
60
Vehicle
40
37
Non-Volatile Vehicle, percent by weight of vehicle
50
42

Pigment Composition, percent by weight

Titanium Dioxide ASTM D 476 Type II Rutile

4.0

Lead-free Organic yellow No. 65

5.0

Calcium Carbonate, ASTM A 1199 Type GC Grade 1
87

Vehicle Composition, percent by weight

Acrylic Emulsion E-2706 or DT211NA (50% NV) or approved equivalent
90
85
Methanol
3.0
1.0
Texanol Coalsecent
5.0
4.0
Other additives
5.0
0.0

Propylene Glycol

3.0

B. Fabrication General Provisions 101 through 109 . C. Acceptance See Subsection 708.2.C.

D. Materials Warranty General Provisions 101 through 150.

708.2.03 Sign Enamel A. Requirements

1. Ensure that sign enamels, either baking or air-drying, except black, meet the requirements of Federal Specifications TT-E-489 and Subsection 870.2.

2. Use the identified class shown in Table 13 for the respective types. Also, ensure that each color matches Federal Standard 595A as designated.

Table 13—Sign Enamel Federal Specification Requirements

Fed. Stand. No. 595 A
Fed Spec. TT-E-498e
Color
Number
Class
Type
Yellow
13538
B

A Baking Air Drying

White
17875
B

A Baking Air Drying

Red
11105
B

A Baking Air Drying

Blue
15090
B

A Baking Air Drying

Green
14109
B

A Baking Air Drying

3. For a black sign enamel, use a semi-gloss enamel that matches Federal Standard Number 595 A, Color 27038 and meets the requirements of Military Specifications MIL-E-698 B and Subsection 708.2.

B. Fabrication Prepare the surface and use a primer recommended by the manufacturer of the sign enamel.

C. Acceptance See Subsection 708.2.C.

D.Materials Warranty General Provisions 101 through 109.

708.2.04 Paint for Timber

A. Requirements Ensure that paints for timber meet the requirements of Subsection 708.2 and Federal Specification TT-P-104b, unless otherwise specified.

1. If lead-free, fume-resistant paint is specified, ensure that it meets the requirements of Federal Specification TT-P-103b.

2. If chalking is a specified requirement, ensure that the paint meets Federal Specification TT-T-103b modified to require that the percentage of anatase be equal to that specified in TT-P-103b for both rutile and anatase.

B. Fabrication General Provisions 101 through 109.

C. Acceptance See Subsection 708.2.C.

D. Materials Warranty General Provisions 101 through 109

708.2.05 Miscellaneous Paints

A. Requirements

1. Paint for Steel Piling and Sway Bracing

Use paint for steel piling and sway bracing that meets the requirements of Subsection 708.2 and the following:

a. No. 1P, General: Ensure that materials used as a primer and/or finish coat are formulated from either a coal tar pitch or a native pyrobitumen resin. You may use other types of material if they meet the requirements in Table 14, below.

Table 14—Primer/Finish Coat Requirements

Properties
Requirements
Color
Black
Odor
Ensure coal tar materials have no pyridine, pyridine base, or tar acid odor.
Consistency
Easily applied by brush or spray to a coverage of 60 ft2/gal (1.5 m2/L), without sagging, yielding film thickness of about 26 mils (0.66) wet and 13 mils (.33) dry.
Drying time
Apply at a rate of of 60 ft2/gal (1.5 m2/L). Ensure that the material dries to a firm film within 24 hours at 700 - 800 (210 - 270C) and can receive a second coat.
Chemical resistance
Ensure that the material remains intact and in good condition when immersed for 30 days in each of the following inorganic acids, alkalies, and salts:

· 5% sulfuric acid

· 5% hydrochloric acid

· 2% phosphoric acid

· 5% sodium hydroxide

· 25% sodium chloride

· 25% calcium chloride

1) Durability: Before initially accepting a product to be supplied under this Specification, the complete system—from primer, when required, to finish coat(s)—shall be subjected to accelerated weathering and atmospheric exposure tests according to ASTM D 822 and ASTM G 23, Type D.

2) Ensure that the system remains intact without cracking, and prevents significant steel corrosion for at least 1,500 hours exposure in the accelerated weathering test, and 5 years atmospheric exposure in a coastal environment.

3) The State Materials and Research Engineer may approve systems that perform satisfactorily for up to 3,000 hours of accelerated weathering pending completion of the 5-year atmospheric exposure tests.

4) After the Department initially accepts the material, you do not need to test each lot of material. However, the Department will conduct other durability tests at its discretion.

b. No. 2P, Special Provisions Coating: Use special protective coatings instead of any other coating required by the Specifications for steel-H piling, steel sway bracing, metal shells for cast-in-place concrete piling, or prestressed concrete piling in all intermediate bents of the cap and pile trestle-type.

1) Get approval from the Laboratory for the protective coating material.

2) Use a two-component, chemically cured, coal-tar epoxy that meets the requirements of either Type I, Class 2, Military Specification MIL-P-23236 (Ships) or U.S. Corps of Engineers Specification C-200.

3) Ensure that the coating exhibits optimum chemical and physical resistance to alkalies and mineral acids under continuous immersion service.

4) Ensure that the cured coating withstands considerable physical abuse such as direct impact, abrasion, and flexing.

5) Furnish a written certification to the Engineer that the material meets the requirements of these Specifications.

2. Galvanizing Repair Compound

Use a compound that meets the general requirements of Subsection 708.2 and Table 15.

Table 15—Galvanizing Repair Compound Requirements

Requirement
Maximum
Minimum

Paint Composition, percent by weight

Pigment
77
73
Vehicle
27
23

Pigment Composition, percent by weight

Zinc Dust, Federal Specification TT-P-460
99
95
Dust (Metallic Zinc Powder), Type 1 Lead Suboxide Stablizer
0.15
Suspending Agent
1.85

Vehicle Composition, percent by weight

Non Volatile Vehicle

Volatile Vehicle
82

a. Non-volatile Vehicle: Use chlorinated rubber and a suitable plasticizer for the non-volatile portion of the vehicle. Ensure that the chlorine content, based on the non-volatile vehicle, is at least 60 percent by weight.

b. Volatile Vehicle: Use a volatile vehicle that is completely compatible with the other ingredients of the finished product. Ensure that the vehicle meets all the physical and chemical requirements of the end product.

c. Finished Compound: Ensure that the finished compound meets the requirements of Table 16.

Table 16—Finished Compound Requirements

Characteristic
Requirement
Condition in the container
No pigment component of the ready-mixed compound settles. When the package remains unopened for one year, you can readily disperse the pigment by hand mixing

The vehicle does not liver, curdle, or show excessive bodying.

Application
The material to repair galvanizing and to galvanize welds in the field shall be such that when applied, there is no unusual difficulty in horizontal, vertical, or overhead positions.
Adhesion
Expose test panels coated according to field application specifications to weather for at least 3 months in a position 45 degrees vertical, facing south. After this time, ensure that the test panels show no visible signs of peeling or flaking.
Gassing
No build up of gas or excessive pressure in the container when stored at room temperature for 3 months
Dry film thickness
The compound leaves a dry film between 2 – 2-1/2 mils (0.051-0.064 mm) thick, when applied according to field application specifications.
Drying time
The compound is set to touch in 30 minutes and is dry to recoat in 4 hours. The material is thoroughly hard 48 hours after application.
Hardness
Dry and cure the test panels coated under these Specifications for at least 48 hours. Brush a section by hand with a wire brush. Continue brushing until you see bright metal. Measure the dry film thickness. Accept the material if the brushing does not reduce the film below the specified thickness.
Consistency
Viscosity at 770F (250C) is 123+/- 7 Krebs units as measured by the Stormer Viscometer.
Weight per lb (liter)
22 +/- 10% lbs (2.64 +/- 10% kg) at 770F (250F).
Packaging
Commercial paint packaging is acceptable for container smaller than 1 gal (3.8 L).

For 1 gal (3.8 L) packages, use No. 26 gauge steel pails.

Do not pack more than 1 gal (3.8 L) of compound in a single container.

Storage
Store the compound where the temperature stays above 450F (70C).

3. Aluminum Caulking Compound

Use a compound that meets the requirements of Subsection 708.2, third bullet, and Table 17.

Table 17—Aluminum Caulking Compound Requirements

Properties
Maximum
Minimum

Compound Composition, percent by weight

Pigment

Vehicle
28

Pigment Composition, percent by weight

Calcium Carbonate, ASTMD 1199, Type GC

Mineral Filler
17
Aluminum Paste, Federal Specification TT-P_320c, Type II, Class III
1.85

Titanium Dioxide ASTM D476, Type, Class II

Vehicle Composition, percent by weight

Non Volatile Vehicle

78.5

Refined vegetable oil

Polybutene Oil

24.5

Fatty Acid

3.5

Thinner and drier
18

Color: Aluminium

a. Other Properties

Properties
Requirement
Consistency
Can be applied by hand caulking gun, knife, or trowel
Adhesion
Good adhesion to any dry, dust free, or oil free surface
Curing
A light film forms in 48 to 72 hours. A tough metallic film develops in 2 to 3 weeks.
Exposure
Good resistance to water and weather.

B. Fabrication General Provisions 101 through 109.

C. Acceptance See Subsection 708.2.C.

D. Materials Warranty General Provisions 101 through 109.

708.2.06 Miscellaneous Paint Materials

A. Requirements Use other paint materials that meet the following requirements:

1. Raw Linseed Oil: Use oil that meets the requirements of ASTM D 234.

2. Boiled Linseed Oil: Use oil that meets the requirements of ASTM D260.

3. Turpentine: Use turpentine that meets the requirements of ASTM D 13.

4. Mineral Spirits: Use petroleum spirits (mineral spirits) that meets the requirements of ASTM D 235.

5. Spar Varnish: Use Varnish, Spar Phenolic Resin, as per Federal Specification TT-V-119.

6. Tinting Pigment Paste: Use lampblack, venetian blue, or iron blue as tinting pigments.

· The Engineer may approve other tinting pigments, subject to limitations.

· Add all tinting pigments in paste form.

7. Putty: Use putty that meets the requirements of Federal Specifications TT-P-791a, Type II.

B. Fabrication General Provisions 101 through 109.

C. Acceptance General Provisions 101 through 109.

D. Materials Warranty General Provisions 101 through 109.

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