This aircraft fuel tank sealant is a two-part, manganese dioxide cured poly-sulfide compound, suitable for sealing applications in fuel tanks and fuselage. It offers a service temperature range of 65°F to 250°F, with excellent adhesion to aircraft substrates and resilience against jet fuel and aviation gas exposure. Available in 6 oz. packaging.
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
Boeing provides PPG Aerospace/PRC DeSoto PS890B1-2, P/S Class B as an aircraft integral fuel tank sealant. It as service temperature range from 65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material is designed for fillet 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 aviation gas. P/S 890 Class B is a two-part, manganese dioxide cured poly-sulfide compound. The uncured material is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates. UOM: 6 oz.
Features & Benefits
Thermal rupture resistance for reliable performance
Low temperature flexibility to maintain seal integrity
Corrosion resistance
Flexibility with no cracks after bending 180 degrees over a 0.125 inch (3.18 mm) mandrel
Resistance to hydrocarbons
Repairable to itself, excellent for both freshly cured and fuel-aged fillets
Outstanding resistance to water, alcohols, and petroleum-based fluids
Fungus resistant - non-nutrient
Specifications
Color: Part A - Black, Part B - White, Mixed - Gray
Mixing Ratio by Weight: Part A: Part B 10:100
Base Viscosity: 11,000 (1100) (Brookfield #6 @ 10rpm), Poise (Pa-s)
Application Life @ 77°F (25°C), 50% RH: 1/2 hrs
Cure Time: 14 days @ 77°F (25°C), 50% RH
Cured Specific Gravity: 1.55
Nonvolatile Content: 95%
Tensile Strength: 300 psi (2069 KPa) - Standard cure, 14 days @ 77°F (25°C), 50% RH
Elongation: 300% - Standard cure, 14 days @ 77°F (25°C), 50% RH
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.
