DeSoto® Fuel Tank Sealant, Liquid, Black/White (Part A/B), 1 pt

P/S 890 Class A is an aircraft integral fuel tank sealant. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. P/S 890 Class A is a two-part, manganese dioxide cured polysulfide compound. The uncured material is suitable for application by brush in thickness up to 25 mils. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
Technical Information
• AMS-S-8802 Type II Class A-1/2
• AMS-S-8802 Type II Class A-2
• Boeing BMS 5-45 Class A-2 Grade 1
• Cessna CMNP021 Type I, Class A-2
• Mitsubishi MM1077 Class A-1/2, Type II
Specifications
• Series: P/S 890
• Container Size: 1 pt
• Form: Liquid
• Color: Black/White (Part A/B)
• Composition: 40 to <50% Manganese Dioxide, 20 to <30% Terphenyl, Hydrogenated, 5 to <10% Zeolites, 1 to <5% Talc, 1 to <5% Carbon Black, 1 to <5% 1, 3-diphenylguanidine, 1 to <5% Terphenyl, 1 to <5% Bis(Piperidinothiocarbonyl) Hexasulfide (Part A), >=30 to <=40% Propane, 1, 2, 3-Trichloro-, Polymer with 1, 1'-[Methylenebis(oxy)]bis[2-Chloroethane] and Sodium Sulfide (Na2(Sx)), Reduced (MW >1800), 5 to 10% Methyl Ethyl Ketone, >=5 to 10% Toluene, 5 to 10% Propane, 1, 2, 3-Trichloro-, Polymer with 1, 1'-[Methylenebis(oxy)]Bis[2-Chloroethane] and Sodium Sulfide (Na2(Sx)), Reduced (MW <1800), >=1 to <=5% Titanium Dioxide, <0.1% Terphenyl (Part B)
• Application Time: 2 hr
• Curing Time: 60 hr
• Specific Gravity: 1.55
• Viscosity: >21 cSt
• Tack-Free Time: <30 hr
• Application Method: Brush
• Vapor pressure: 3.2 kPa
• Shelf Life: 183 days
• Storage Temperature: 80 deg F
• Relative density: 1.76 lb/gal (Part A), 1.37 lb/gal (Part B)
• Flash Point: 30 deg F
• Boiling Point: 680 deg F (Part A), >100 deg F (Part B)
• Auto Ignition Temperature: 705.2 deg F
• Temperature Rating: -65 to 250 deg F
• Suitable for Use With: Aircraft Fuselage Sealing