NSL870B1/2 | NSL Aerospace

Replacement for PRC-DeSoto Sealant Pro Seal P/S 870 B1/2

Below are the makes and models of aircraft that, per the FAA, NSL870 B1/2 is eligible for use on in replacement of P/S 870 B1/2.

Like all of our PMA sealants, NSL870 B1/2 is a cost-saving alternative product that can be safely used in place of the original part. That’s because PMA manufacturers like us submit to a rigorous review process with the FAA in order to ensure that our parts are airworthy. With that approval, you can know that this PMA part will function the same or better than the OEM part. Find out more about PMA parts with our Introductory Guide to PMA Sealants.

NSL870 B1/2 is a corrosion inhibitive sealant for use on aircraft integral fuel tanks and pressurized cabins as well as other areas subject to contact with aircraft fuels, lubricants, oils, water and/or weathering. NSL870 B1/2 has an application life of half an hour, tack free time of 5-6 hours, and cure time of 24 hours. Finding packaging details on the NSL870 B1/2 product page.