FAST MASK  BLAST RESIST LC4084  25LBS

Fast Mask is a plastic putty-like substance which resists sandblasting when using Shadow in a “single process”. (Flashing polish from panel AFTER letters have been blown and shadowed). Also ideal for masking Shadow in a “one process” shape carving. Fast Mask protects the Shadow in letters, as well as protecting the edges of letters. It is applied after the stencil is removed, being easily pressed into letters or carving background with finger or putty knife. It is washed out of letters with water.