HI-Test LOF Safety Plate Etch Mask

HI-Test LOF Safety
Plate glass etching mask for use with hydrofluoric acid paste to etch the
HI-Test logo on window glass. Made from mylar and has an
adhesive on one side.
This mask is applied to clean glass and
acid paste is then applied over the decal mask. After two minutes, the
acid paste may be rinsed off with water and will leave a frosted
surface where the glass was exposed. Required etching paste is not available in our store.

For use on 1940 Cadillac and others.