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

P/S Class B is an aircraft integral fuel tank sealant. 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 polysulfide compound. 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 B-2
• Boeing BMS 5-44 Class B-2
• Cessna CMNP021 Type I, Class B-2
• De Havilland DHMS S307 Class B-2
• Lockheed FMS-1049 FORM II and III, Class B-1 Approved
• Hughes HMS 16-1149 Type III
Specifications
• Series: P/S 890
• Container Size: 1 pt
• Form: Liquid (Part A), Solid (Part B)
• Color: Black/White (Part A/B)
• Odor/Scent: Paste
• Composition: >=20 to <=50% Manganese Dioxide, >=20 to <=50% Terphenyl, Hydrogenated, >=5 to <=10% Zeolites, >=5 to <=10% Polyphenyls, Quarter and Higher, Partially Hydrogenated, >=1 to <=5% Talc, >=1 to <=5% Carbon Black, >=1 to <=5% Terphenyl, >=1 to <=5% Magnesium Carbonate, >=1 to <=4.6% 1, 3-diphenylguanidine (Part A), >=20 to <=50% Calcium Carbonate, >=1 to <=5% toluene >=1 to <=5% Titanium Dioxide (Part B)
• Application Time: 2 hr
• Curing Time: 48 hr
• Density: 14.96 lb/gal (Part A), 12.52 lb/gal (Part B)
• Specific Gravity: 1.55
• Viscosity: >21 cSt
• Tack-Free Time: <6 hr
• VOC Content: 57 g/L
• Application Method: Extrusion Gun, Spatula
• Shelf Life: 270 days
• Storage Temperature: 80 deg F
• Relative density: 1.76 lb/gal (Part A), 1.5 lb/gal (Part B)
• Flash Point: 153 deg F
• Boiling Point: 680 deg F
• Temperature Rating: -65 to 250 deg F
• Suitable for Use With: Aircraft Fuselage Sealing