140R4022Q0031_Attachment_1_Coatings_Tab_IE_19A.pdf
PDF 111 KB Posted
- Attached to
- Dolores Water Screen Refurbishment Federal contract opportunity
- Solicitation number
- 140R4022Q0031
About this file
This document provides specifications for coating materials for use on water gates and related infrastructure. It lists approved coating systems from manufacturers PPG, Sherwin Williams, and others that consist of multi-coat epoxy and polysiloxane topcoats. The coatings must meet various performance requirements for water immersion, abrasion resistance, adhesion, and corrosion protection as measured by standardized tests. The specifications are referenced in a related federal contract opportunity issued by the Department of the Interior Bureau of Reclamation to refurbish six traveling water screens at the Dolores Water Conservation District in Colorado.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Attachment_3_Subcontracting_Plan.docx | DOCX document | |
| 140R4022Q0031_Attachment_2_Price_Schedule.xlsx | XLSX spreadsheet | |
| Combined_Synopsis_Solicitation_140R4022Q0031.pdf |
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Spec Title Specifications No.
Tabulation No. IE-19
Tab IE-19-1
SECTION Tab IE-19.docx
TABULATION NO. IE-19
GUIDE SPECIFICATION
DEPARTMENT OF THE INTERIOR – BUREAU OF RECLAMATION
WARNING
Users of this guide specification should have expertise in the protective coatings field. This field is undergoing significant changes due to emerging technologies and environmental regulations that affect protective coatings formulation and performance. Reclamation has experienced unsuitable coating applications when users without adequate coating knowledge selected inappropriate materials. The Materials and Corrosion Laboratory, 86-68540, in the
Technical Service Center prepared this guide specification and is available to prepare or assist in preparing project specifications for coatings.
REVISIONS
Reference Standards Checked/Updated: n/a
Content Revisions:
8/25/17 New style of Tabulation to include product name and product requirements. No longer use Coating Categories.
2/19/20 Updated polysiloxane systems
Editorial/Format Revisions:
Template: CSI_16.dotx
NOTES
1. Substrate types: ferrous.
2. Specify for immersion service or fluctuating immersion service.
3. Use for replacing vinyl resin paints.
Tab IE-19-2
Items to be coated or repaired:
a. Stop logs
b. Bulkhead gates
c. Radial gates
d. Spillway gates
Notes:
1. Do not coat stainless steel, bronze, or non-metallic surfaces.
2. Coat all fasteners to include nuts, bolts, washers, and exposed anchors.
3. Fast dry curing agents are allowed as a substitute.
Coating materials – Option 1
Abrasion resistant epoxy/ polysiloxane topcoat
Number and thickness of coats
Surface preparation method
PPG: Amerlock 400/ PSX
PPG Sigmashield 880/ PSX
Sherwin Williams Duraplate
235/ Sherloxane 800
Color: Manufacturer’s standard light color and gloss
2 base coat apply at 4-8 mils
DFT per coat, plus stripe coats.
1 or more topcoats, apply at
3-6 mils DFT per coat
Total system measured to steel substrate:
11-mil DFT, minimum
22-mil DFT, maximum
Method A followed by:
Method C / Method H
(Per manufacturer’s guidelines)
Method J for removal of existing coatings only
Follow manufacturer’s surface preparation and application instructions to apply subsequent coats
PERFORMANCE REQUIREMENTS:
Testing Protocol Acceptance Criteria
Fresh/deionized water immersion test, ASTM D 870:
passes, 2 years test with aerated water held at ambient temperature with no blisters evident on either scribed or unscribed sides.
Dilute Harrison immersion test, Modified
ASTM D 870:
passes, 2 years test with aerated water held at ambient temperature with no blisters evident on either scribed or unscribed sides.
Abrasion resistance, ASTM D 4060, CS-17 wheel, 1,000 cycles, 1-kg load:
Polysiloxane: 80 milligram or less
Direct impact, ASTM D 2794: 40 inch-pounds
Tab IE-19-3
Tabulation No. IE-19
Pulloff adhesion, ASTM D 4541, annex A2, type II tester:
1500 psi or greater
Cyclic testing salt fog/UV, ASTM D 5894: 1/4 inch or less undercutting at 3000 hrs.
Cathodic disbondment, ASTM G 8: 1/4 inch or less disbondment 120 day test
Tab IE-19.DOCX
File details come from the government source that posted it. Updated .