This is a TRE6221 White Kwik-Seal. Kwik-Seal 2K Urethane Sealer has been specifically formulated as a premium quality sealer to be used over a variety of substrates. Kwik-Seal offers excellent adhesion to bare metal, aluminum, SMC fiberglass, old paint finishes & all Transtar primers. Kwik-Seal has excellent leveling & gloss hold out properties & is compatible with most basecoat/clearcoat & single stage systems. It is one of the most innovative products on the market today!