These precision wet film applicators are used in conjunction with paper charts, hiding power charts, plate glass or any other smooth, flat surfaces. They are simple, accurate experimental or quality control devices that require no adjustments.

General Instructions
A small quantity (depending on length and thickness of film required) of the material to be checked is placed on the inside of the channel near the correct opening for the thickness desired. The applicator is then drawn down over the chart or other surface and a uniform thickness of film is produced for observation and test.

A path with a depth or a clearance of one mil will lay down a film approximately 1/2 mil thick. A latex film will shrink considerably more, so paths of greater depths are required in order to obtain a dry film thick enough to check flexibility and toughness.

General Uses
Film thicknesses deposited may vary from 40% to 80% of the actual clearance.