Zerex Super Sealer Radiator Sealer - 14.5 oz

Zerex Super Sealer is an all-natural sealant for cooling systems and the only product on the market tested and approved by Cummins. Seals leaks permanently in about an hour. Water based formula flows through the smallest of passages with no clogging. Proven safe in multiple applications and can be used to prevent leaks in the future. Seals in one hour or less while engine is running Proven safe in multiple applications Water-based formula; All natural materials (plant fiber, clay and water) Zerex Super Sealer is so effective, it is the only product authorized by Cummins for repair procedure to seal cooling system leaks