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Two-Coat Low VOC Maintenance System for DoD Aboveground Storage Tanks

Two-Coat Low VOC Maintenance System for DoD Aboveground Storage Tanks
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To protect against corrosion, exterior Department of Defense (DoD) Aboveground Storage Tank (AST) surfaces initially receive a three-coat coating system consisting of epoxy primer (MIL-DTL-24441, Formula 159, Type III), epoxy intermediate (MIL-DTL-24441, Formula 152, Type IV), and polyurethane topcoat (MILPRF-85285D, Type II).  Exterior AST maintenance painting is generally required at less than eight years’ service.

Product Number: 41205-168-SG
Author: C. David Gaughen, Paul Anderson, Jason Bell
Publication Date: 2005
Industry: Coatings
$0.00
$20.00
$20.00

To protect against corrosion, exterior Department of Defense (DoD) Aboveground Storage Tank (AST) surfaces initially receive a three-coat coating system consisting of epoxy primer (MIL-DTL-24441, Formula 159, Type III), epoxy intermediate (MIL-DTL-24441, Formula 152, Type IV), and polyurethane topcoat (MILPRF-85285D, Type II).  Exterior AST maintenance painting is generally required at less than eight years’ service.  The initial three-coat system is not appropriate for use over aged and weathered coatings and contains more than 304 g/l (2.5 lbs./gal) of Volatile Organic Compounds (VOC) per coat.  Work associated with field demonstrating a novel “Two-Coat Low VOC Maintenance System” applied to the exterior coating systems of two ASTs is presented.  The two-coat system employed the Small Business Innovative Research (SBIR) developed Low VOC Barrier Coating (LVBC), for use as the direct-to-weathered paint barrier coat, followed by the Environmental Security Technology Certification Program (ESTCP) validated Zero-VOC Topcoat (ZVT).

To protect against corrosion, exterior Department of Defense (DoD) Aboveground Storage Tank (AST) surfaces initially receive a three-coat coating system consisting of epoxy primer (MIL-DTL-24441, Formula 159, Type III), epoxy intermediate (MIL-DTL-24441, Formula 152, Type IV), and polyurethane topcoat (MILPRF-85285D, Type II).  Exterior AST maintenance painting is generally required at less than eight years’ service.  The initial three-coat system is not appropriate for use over aged and weathered coatings and contains more than 304 g/l (2.5 lbs./gal) of Volatile Organic Compounds (VOC) per coat.  Work associated with field demonstrating a novel “Two-Coat Low VOC Maintenance System” applied to the exterior coating systems of two ASTs is presented.  The two-coat system employed the Small Business Innovative Research (SBIR) developed Low VOC Barrier Coating (LVBC), for use as the direct-to-weathered paint barrier coat, followed by the Environmental Security Technology Certification Program (ESTCP) validated Zero-VOC Topcoat (ZVT).

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