NSL1422RC Class A is a fuel resistant sealant 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. This Class A two-part polysulfide base compound cures at room temperature to a flexible, resilient rubber.Model (EDMO# 1422A12QT) is Class A, one quart size with a 30 minute work time.
