NSL870 Corrosion Inhibitive Sealant
FAA Approved PMA Replacement Sealant for P/S 870 Class B
NSL870 is a corrosion inhibitive aviation 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 P/S 870 sealant. At room temperature, this two-part polysulfide base compound cures to a flexible, resilient rubber.
Learn more below or get a quote today.

Product Details
- P/S870 Class B
Competitive Advantages of NSL PMA Sealants
No Order Minimum*
Custom packaging and custom quantities with no minimums on orders.*
Speed of Delivery
Short lead times, just-in-time turnarounds, and no expedite fee.
International Service
Help with shipping logistics, regulations and documentation requirements.
Continued Support
Supporting our customers is our most important value as a company and as people.
NSL PMA Sealant Benefits
- 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)
For more information about PMA Sealants view our guide.
