NSL1440RCB2 | NSL Aerospace

Replacement for PRC-DeSoto Sealant PR-1440 B2, PR-1422 B2, ProSeal 890/890M B2

Below are the makes and models of aircraft that, per the FAA, NSL1440RC B2 is eligible for use in replacement of PR-1440 B2.

Like all of our PMA sealants, NSL1440RC B2 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.

NSL1440RC B2 is a rapid-cure, fuel resistant aerospace 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. It is a two-part polysulfide base compound that cures at room temperature to a flexible, resilient rubber.

NSL1440RC B2 has an application life of 2 hours, tack free time of less than 9 hours, and cure time of less than 2 hours. Find packaging details on the NSL1440RC B2 product page.