A simple gauge with a single reservoir allowing the user to generate 4 different thicknesses of coating.

These stainless steel applicators are made with 4 straight spreading edges of fixed film gaps.

The Elcometer 3508 4 Gap Applicator with 2 reservoirs has been designed specifically for the generation of test samples for use with the Elcometer 1720 Abrasion, Scrubbing and Washability Tester.