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DeSoto® PR1422B2AMPT Fuel Tank Sealant, 2.5 oz, Liquid, Black

Part # PR1422B2AMPT=5N
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PR-1422 Class B is an aircraft integral fuel tank sealant. It has a service range from -65 deg F to 250 deg F, with intermittent excursions up to 275 deg F. This material is designed for fillet sealing 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. PR-1422 Class B is a two-part, dichromate 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 resilient sealant having excellent adhesion to common aircraft substrates.

• PR-1422 Class B is a two-part, dichromate cured polysulfide compound

• AMS-S-8802 Class B Specified

• Series: PR-1422
• Container Size: 2.5 oz
• Form: Liquid
• Color: Black
• Composition: 20 to <30% N, N-dimethylacetamide, 20 to <30% Calcium Dichromate, 5 to <10% Talc, 1 to <5% Kaolin, 0.1 to <1% Carbon Black
• Dry Time: <20 hr (Tack Free)
• Specific Gravity: 1.45
• Viscosity: >21 cSt
• Application Method: Extrusion Gun and Spatula
• Vapor pressure: 3.2 kPa
• Shelf Life: 270 Days
• Storage Temperature: 40 deg F
• Relative density: 1.35 lb/gal
• Boiling point: 212 to 331 deg F
• Suitable for Use With: Aircraft Fuselage Sealing
• Domestic/Import: Domestic
Item currently out of stock
Cage Code
Country of origin
United States 
Schedule B
Dimensions (L x W x H)
3.3 x 3.3 x 5.8 IN
Total Shelf Life (days)
Hazmat Code
Package Weight
1.5 LB
FAA Approval Code
8130-3 Eligible
WARNING: This product can expose you to chemicals including CARBON BLACK (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE [= 10 MICROMETERS]), CHROMIUM (HEXAVALENT COMPOUNDS), N,N-DIMETHYLACETAMIDE 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

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