Carplan Powerbond Silicone Sealer is a high temperature RTV silicone sealant with mulitudes of uses. It s ideal for bonding & sealing metal, rubber & vinyl and for insulating electrical connections. Can be used to seal gaskets on engines due to its waterproof, and oil resistant properties. This clear silicone sealant comes in a tube with a cut to size application nozzle for different size beads.