This two-part aircraft fuel tank sealant is designed for brush and fay sealing applications. It withstands temperatures from -65°F to 250°F, with short-term exposure up to 275°F. The cured sealant offers strong adhesion and elastomeric properties, making it suitable for prolonged contact with jet fuel and av-gas.
WARNING: This product can expose you to chemicals including CARBON BLACK (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE [= 10 MICROMETERS]), TITANIUM DIOXIDE (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE) and TOLUENE 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
Pro-Seal 890 Class A Fuel Tank Sealant - SemKit P/S 890 Class A is an aircraft integral fuel tank sealant. It has a service temperature range from -65 F to 250 F, with intermittent excursions up to 275 F. This material is designed for brush and fay sealing of fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and av-gas. P/S 890 Class A is a two-part, manganese dioxide cured polysulfide compound. Sold in a Semkit, the two parts are automatically extruded and mixed in proper proportions. The uncured material is suitable for application by brush in thickness up to 25 mils. It cures at room temperature to form a resiliant sealant having excellent adhesion to common substrates. Tested in accordance with AMS-S-8802.
Features & Benefits
Thermal rupture resistance for reliable performance
Low temperature flexibility at -65°F (-54°C) with no cracking, checking, or loss of adhesion
Corrosion resistance with no loss of adhesion or softening after immersion in salt water
Resistance to hydrocarbons for enhanced durability
Flexibility with no cracks after bending 180 degrees over a 0.25 inch (3.18 mm) mandrel
Repairable to itself, excellent for both freshly cured and fuel-aged fillets
Outstanding resistance to water, alcohols, petroleum-based and synthetic lubricating oils, and petroleum-based hydraulic fluids
Fungus resistant and non-nutrient
Specifications
Color: Part A - Black, Part B - White, Mixed - Gray
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.
