waterproofer

Etymology

From waterproof + -er.

waterproofer means one who, or that which, makes waterproof. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

One who, or that which, makes waterproof.“It must not contain waterproofers, integral hardeners, plasticisers, accelerators or other additives because these act as delaminators for resins.”