FAA approved replacements for PRC/PPG Aerospace Sealants.

NSL1750 Class B

NSL1750: High Temperature Fuel Tank and Fuselage Sealant

NSL1750 is a high-temperature, fuel resistant sealant designed for fillet sealing of fuel tanks and other areas requiring a weathertight and fuel resistant seal. This product is an FAA-approved PMA sealant for PPG’s PR-1750 sealant. Learn more or request a quote today.

Eligible manufacturers for NSL1750 series per FAA PMA Supplement PQ4210CE* include:

Bombardier, CFM International, McDonnell Douglas, Pratt & Whitney.

*Click part number for FAA links:

Packaging: Available in 2½ - and 6-oz. cartridges, pint, quart and gallon kits. Also available in premixed and frozen cartridges. Other-size packaging available upon request.

Technical Data: Class B*
  • Cure Profile: B-½B-2
  • Application Life (hrs): ½2
  • Tack Free Time (hrs): 2020
  • Cure Time (hrs): 2448
Shelf Life: 9 months | Consistency: Paste | Color: Gray

*Please consult the technical data sheet for specificities of environmental conditions that yielded the above data. Standard cure rates are based on industry curing standards.

Technical Data Sheets (TDS)

Safety Data Sheet (SDS)

NSL Product Guides