PR-1425 Class B Overview
PR-1425 Class B is an aircraft windshield and canopy sealant. It has a service temperature range from -65°F to (-52°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). We have designed this material for fillet sealing of properly prepared glass, polycarbonate, acrylic and other aircraft sealing applications. This product is specifically formulated not to craze substrates. The cured sealant exhibits excellent resistance to UV and weather exposure. The uncured material is a low sag, thixotropic paste, suitable for application by extrusion gun or spatula. This sealant has excellent adhesion to common aircraft substrates.