[f. WATERPROOF v. + -ER1.] One who makes materials, etc., waterproof.
1858. Kelly’s Directory Lancs., 1725/2. Waterproofers.
1864. Leeds Mercury, 20 Sept. India-rubber manufacturer and waterproofer.
1885. C. G. W. Lock, Workshop Rec., Ser. IV. 23/1. This recipe is used by woollen-cloth waterproofers.
1890. Lancet, 22 Feb., 420/2. Waterproofers and lampblack makers.
