As of October 25, 2020, we have fresh material and are shipping domestically and internationally.


FAA approved replacements for PRC/PPG Aerospace Sealants.

NSL890RC Class A and B

NSL890RC: Rapid Cure Aviation Fuel Tank Sealant

NSL890RC is a rapid-cure, fuel resistant aerospace and aviation sealant. It offers a faster cure time so you can get your job done more quickly. It is 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-890 sealant that cures at least 70% faster. Learn more below or get a quote today.

Replacement For: P/S 890 & P/S 890M Class A & B, PR-1422 Class A & B, PR-1440 Class A & B
Conforms To: AMS-S-8802 & BMS5-45B by FAA-PMA Approval

Eligible manufacturers for NSL890RC series per FAA PMA Supplement PQ4210CE* include:
Airbus, Boeing, Bombardier, Cessna, Embraer, Pratt & Whitney.

Click the part number to access the FAA PMA supplement:

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:  *
  • Cure Profile: A-½A-2
  • Application Life (hrs): ½2
  • Tack Free Time (hrs): <5<9
  • Cure Time (hrs): <5<12
Shelf Life: 9 months | Consistency: Self Leveling | Color: Gray

Technical Data:  *
  • Cure Profile: B-½B-2
  • Application Life (hrs): ½2
  • Tack Free Time (hrs): <5<9
  • Cure Time (hrs): <5<12
Shelf Life: 9 month | 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.


Why don’t we have pricing on our product page? Because pricing is not a one-size-fits-all proposition. There are multiple variables determining product price, such as:

  • Part name, type, class, or manufacturer
  • Size
  • Quantity
  • Specification
  • Shelf life requirement
  • Purchaser type: Distributor or end-user?

Every quote is custom, created just for you and your specific needs. Please fill out the form on our CONTACT US page and we’ll be in touch ASAP.

Request a quote

NSL PMA Sealants

  • Non-critical Part (FAA AC 43-18 (2))
  • FAA Approved (Supplement PQ4210CE)
  • 8130 Airworthiness Approval
  • PPG/PRC replacement
  • 30%-50% cost savings on average
  • Faster turnaround
  • Customizable packaging
  • Available pre-mixed and frozen (PMF)