NSL PMA SEALANTS

FAA approved replacements for PRC/PPG Aerospace Sealants.

NSL870 Class B

NSL870: Corrosion Inhibitive Sealant

NSL870 is a corrosion inhibitive sealant intended 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 is an FAA approved PMA replacement for PPG’s PS-870 sealant. Learn more below or get a quote today.

At room temperature, this two-part polysulfide base compound cures to a flexible, resilient rubber.

Replacement For: P/S 870 Class B
Conforms To:
MIL-PRF-81733 by FAA-PMA Approval

Eligible manufacturers for NSL870 series per FAA PMA Supplement PQ4210CE* include:

Airbus, Boeing, Bombardier, Embraer, McDonnell Douglas, Rolls Royce.

*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): 5-66-7
  • 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.
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Technical Data Sheets (TDS)

Safety Data Sheet (SDS)

NSL Product Guides

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