One who, or that which, makes waterproof.

plural of waterproofer

plural of waterproofing

(construction) finely graded iron particles combined with an oxidizing catalyst. When mixed with water (or water, cement and sand), the finely distributed particles expand, creating a waterproof layer that becomes part of the surface to which it is applied.

(construction) An application wherein the waterproofing system and source of hydrostatic pressure are on opposite sides of the structure.

(construction) An application where the waterproofing systems and source of hydrostatic pressure are on the same side of the structural element.

plural of positive side waterproofing