601 Primer is a black primer containing polyisocyanate, specially formulated to improve the adhesion between the sealant and various substrates. Suggested application to use with AS-4200 Auto Glass Sealant for automotive windshield installation.
Suitable for preparing the surface of windshields prior to applying AS-4200 Auto Glass Sealant. It may be used on different substrates including metals, glass, ceramic coating, automotive paints, painted surface and some plastics. It may also be used as a barrier between sealant and paint to prevent the migration of plasticizers.