CHR SG25 is fiberglass fabric impregnated with PTFE dispersion and coated with high temperature, pressure sensitive super stick silicone. The high temperature capabilities and non-stick properties allow them to perform as an excellent release surface in the composite aircraft industry. - Primary SG25 is frequently used by the packaging industry as a release surface on heat sealers, blister formation and form-fill-seal equipment. The durability and anti-stick properties of these Primary products makes it an ideal material for the lining of guide rails, chutes and slides.