Aircraft Eligible for PMA Sealant

NSL1428 B2

Replacement fro PRC-DeSoto Sealant PR-1428 B2

Below are the makes and models of aircraft that, per the FAA, NSL1428 B2 is eligible for use in replacement of PR-1428 B2.

Like all of our PMA sealants, NSL1428 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.

NSL1428 B2 is an aviation access door sealant intended for use on integral fuel tanks and pressurized cabins. It is used as a strippable fillet and as a gasket of removable parts, designed to access areas where easy separation of joint surfaces is required.

NSL1428 B2 has an application life of 2 hours, tack free time of less than 24 hours, and cure time of less than 24 hours. Find packaging details on the NSL1428 B2 product page.