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FUEL TANK SEALANT - ONE QUART OF NSL1422 RAPID CURE CLASS B EQUALS 24oz FILL. VISCOSITY OF PEANUT BUTTER. WORK TIME 30 MINS. REPLACEMENT FOR PR-1422 UNDER PMA NO. PQ4210CE NSL1422RC B1/2

FUEL TANK SEALANT - ONE QUART OF NSL1422 RAPID CURE CLASS B EQUALS 24oz FILL. VISCOSITY OF PEANUT BUTTER. WORK TIME 30 MINS. REPLACEMENT FOR PR-1422 UNDER PMA NO. PQ4210CE NSL1422RC B1/2
Out of Stock - On Backorder
FUEL TANK SEALANT - ONE QUART OF NSL1422 RAPID CURE CLASS B EQUALS 24oz FILL. VISCOSITY OF PEANUT BUTTER. WORK TIME 30 MINS. REPLACEMENT FOR PR-1422 UNDER PMA NO. PQ4210CE NSL1422RC B1/2
FUEL TANK SEALANT - ONE QUART OF NSL1422 RAPID CURE CLASS B EQUALS 24oz FILL. VISCOSITY OF PEANUT BUTTER. WORK TIME 30 MINS. REPLACEMENT FOR PR-1422 UNDER PMA NO. PQ4210CE NSL1422RC B1/2
Rapid Cure Integral Fuel Tank Sealant | 6oz, 30min, NSL1422RC Class B

NSL1422RC Class B is a fuel resistant sealant for use on integral fuel tanks and pressurized cabins as well as other areas subject to contact with aircraft fuels, lubricants, oils, water and/or weathering. This Class B two-part polysulfide base compound cures at room temperature to a flexible, resilient rubber.

Model (Alternate Part# 1422B126) is Class B, 6 ounce size with a 30 minute work time.


  • Heat-accelerated curing
  • Fuel resistant
  • Replacement for PR-1422 Class B (PMA No. PQ4210CE)
  • 30 minute work time
  • Excellent adhesion to aluminum, magnesium, titanium, steel and numerous other aircraft substrates
  • Designed to withstand the attack of sulfur compounds that are present in jet fuels and aviation gas
  • Service temperature range -65ºF(-54ºC) to 250ºF(121ºC) with excursions to 275ºF (135 ºC)
  • Suitable for application by extrusion gun or spatula
  • 6oz equals 3.5oz fill

Product Codes

Mfr Part No:NSL1422RC B1/2

Hazmat charges may apply


Size: 6 ozShelf life: 9 months when stored below 80ºFColor: Base - off-white Curing agent - black Mixed - grayMixing ratio: 100:12 (by weight) 100:9.7 (by volume)Non-volatile content: 97%Viscosity: Base - 11,000² Curing - 1,000

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  • Stock: Out of Stock - On Backorder
  • Manufacturer Part #: NSL1422RC B1/2
$23.99

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