Automotive Sealants

The right sealant or adhesive can mean the difference between a repair that holds and one that doesn’t make it out of the driveway. Automotive sealants cover a range of bonding and sealing jobs — gasket making, thread locking, plastic and trim repair, and waterproofing — and brands like J-B Weld and Permatex carry products matched to specific materials and conditions. The key is choosing the right formula for your job: silicone RTV works well for gaskets and heat-exposed surfaces, epoxy putty handles cracks and structural repairs, and threadlocker keeps fasteners from backing out over time.