NSL1428B1/2

Below are the makes and models of aircraft that, per the FAA, NSL1428 B1/2 is eligible for use in replacement of PR-1428 B1/2.

Like all of our PMA sealants, NSL1428 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.

NSL1428 B1/2 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 B1/2 has an application life of 30 minutes, tack free time of less than 6 hours, and cure time of less than 10 hours. Find packaging details on the NSL1428 B1/2 product page.