DeSoto® Corrosion Inhibitive Sealant Kit, Liquid (Part A), Solid (Part B), 2 hr, 20 hr, 6 oz

P/S 870 Class B corrosion inhibitive sealant. It has a service temperature range from -65 to 250 degrees F with intermittent excursions up to 275 degrees F. This material acts as an effective barrier against the common causes of corrosion on the aluminum alloys or between dissimilar metals. The cured sealant maintains elastomeric properties after limited exposure to both jet fuel and aviation gas. P/S 870 Class B is a two part, manganese dioxide cured polysulfide 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.
Technical Information
• BMS 5-95 Type I
• HMS 16-1097 Type III
• MIL-PRF-81733 Type II
• MM1076 Class B, STM40-111 Class B
Specifications
• Series: P/S 870 Class B
• Container Size: 6 oz
• Form: Liquid (Part A), Solid (Part B)
• Color: Black/White (Part A/B)
• Composition: 30 to <40% Manganese Dioxide, Terphenyl, 20 to <30% Hydrogenated, 10 to <20% Magnesium Chromate, 1 to <5% Zeolites, 1 to <5% 1,3-Diphenylguanidine, 1 to <5% Terphenyl, 1 to <5% Bis(Piperidinothiocarbonyl) Hexasulfide (Part A), Propane, 1,2,3-Trichloro-, 30 to <60% Polymer with 1,1'-[Methylenebis(Oxy)]Bis[2-Chloroethane] and Sodium Sulfide (Na2(Sx)), 10 to <12.5% Calcium Carbonate, 5 to <7% Titanium Dioxide, 2 to <3% Toluene, 1 to <2% Butanone, 0.2 to <0.5% Thiram (ISO), 0 to <0.1% Terpheny (Part B)
• Application Time: 2 hr
• Curing Time: 20 hr
• Specific Gravity: 1.48
• Viscosity: >21 cSt (Part A)
• Tack-Free Time: <14 hr
• Application Method: Extrusion Gun, Spatula
• Vapor Pressure: 3.2 kPa (Part A)
• Shelf Life: 180 days
• Storage Temperature: 80 deg F
• Appearance: Paste
• Relative Density: 1.74 (Part A), 1.43 (Part B)
• Tensile Strength: 358 psi
• Flash Point: 98.89 deg C (Part A)
• Boiling Point: >37.78 deg C (Part A)
• Auto Ignition Temperature: 374 deg C (Part A)
• Temperature Rating: -65 to 250 deg F
• Application Time: 2 hr
• Elongation: 400 %
• Hardness Rating: 50 Durometer A