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DeSoto® PR1750A1-2 Fuel Tank Sealant Kit, 6 oz, Liquid, Black/Beige (Part A/B)

Part # PR1750A1-2=5N
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PR-1770 Class B is a high-strength, 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. PR-1770 Class B is a two-part, manganese dioxide cured Permapol® P-5 polysulfide compound.

• AMS 3276 Class A-1/2 Specified

• Series: PR-1750
• Container Size: 6 oz
• Form: Liquid
• Color: Black/Beige (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% Terphenyl, 1 to <5% 1, 3-diphenylguanidine, 1 to <5% Bis(Piperidinothiocarbonyl) Hexasulfide (Part A), 40 to <50% Propane, 1, 2, 3-trichloro-, polymer with 1, 1-[methylenebis(oxy)]bis [2-chloroethane] and sodium sulfide (Na2 (Sx)), reduced (MW >1800), 10 to <20% 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)
• Dry Time: 1/2 hr (Application), <10 hr (Tack Free)
• Viscosity: >21 cSt
• Application Method: Brush
• Vapor pressure: 10.5 kPa (Part B)
• Shelf Life: 274 Days
• Storage Temperature: 80 deg F
• Relative density: 1.76 lb/gal (Part A), 1.41 lb/gal (Part B)
• Flash Point: 62 deg F (Part B)
• Boiling point: 680 deg F (Part A), 175 to 350 deg F (Part B)
• Auto Ignition Temperature: 759.2 deg F (Part B)
• Temperature Rating: -65 to 250 deg F
• Suitable for Use With: Aircraft Fuselage Sealing
• Domestic/Import: Domestic
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Cage Code
Country of origin
United States 
Schedule B
Dimensions (L x W x H)
17.88 x 6 x 1.82 IN
Total Shelf Life (days)
Hazmat Code
Hazmat fees or exemptions may apply.
Package Weight
.51 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]), 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
Item Replacement History
  • PR1750A1-2

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