Caapcoat B274-ASP108 Erosion Coat, 1 Gal Kit, Black
Boeing Hose Shop
Part # B274ASP108KIT=33
Hazmat
Hazmat
B274-ASP108 is a two-component, room-temperature curing polyurethane elastomer designed as a rain erosion coating. Supplied as a 1 US gallon kit (black), it protects radomes, antennas, and leading edges, resisting high-speed rain impact and reducing static charge accumulation.
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WARNING: This product can expose you to chemicals including METHANOL, METHYL ISOBUTYL KETONE, METHYL ISOBUTYL KETONE (MIBK) and TOLUENE DIISOCYANATE which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Overview
B274-ASP108 combines a high-performance polyurethane elastomer base with a compatible curing component to form a tough, flexible erosion-resistant film. Engineered for aerospace and high-speed applications, the coating bonds well to typical substrate materials and cures at ambient temperatures. It can be applied by pressure or suction spray equipment and is optimized for target thicknesses in the 11–13 mil (0.28–0.33 mm) range to balance erosion protection and aerodynamic smoothness. Fast cure characteristics enable full thickness application within six hours under recommended conditions.
Features & Benefits
Engineered for exceptional rain erosion resistance at high speeds.
Superior adhesion and durability compared with single-component coatings.
Cures at ambient conditions—no elevated bake required.
Full-thickness coatings can be applied and cured in less than six hours, improving turnaround.
Compatible with pressure or suction spray equipment for consistent film build.
Formulated to help prevent static charge buildup on coated surfaces.
Recommended 11–13 mils for best balance of protection and surface finish.
Specifications
Pack Size: 1 US gallon kit (two-component)
Color: Black (as supplied)
Type: Polyurethane elastomer, two-component
Recommended Film Thickness: 11–13 mils (0.28–0.33 mm)
Application Equipment: Pressure or suction spray
Cure: Room temperature cure; full thickness achievable in <6 hours (subject to ambient conditions)
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Product information provided "as is", and Boeing may add, change, discontinue or remove product information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
