3M Transparent Inner Cavity Wax (1lt)
3M Transparent Inner Cavity Wax is easy to use and quick to apply to achieve inner rust protection. Achieves long lasting rust proofing and will seep into gaps and along welded joints. Used with an applicator gun, this transparent cavity wax has a heavy consistency and is usually used for engine compartment areas or to protect accessible bare metal parts, i.e. use it for areas where capillary action is not required. The cavity wax creeps underneath humidity, is salt resistant, and permanently flexible.