An un-tinted, 1 part air drying resin used for the first 2 or 3 coats to penetrate and seal the fabric weave and assure good adhesion. Also used to attach the finishing tapes and reinforcing patches. Apply with a brush as supplied or may be thinned 25% with Poly-Dope reducer and applied with a spray gun to avoid brush marks and cut application. The Poly-Brush formula incorporates materials to provide the noncombustible characteristics from which the Poly-Fiber covering process is well known. Bare Dacron cloth will continue to burn when ignited; however, after 1 coat of Poly-Brush is applied and dried, the flame will be extinguished when the ignition source is removed. Packaged in qt., gal., and 5 gal. containers. Shelf life is 4 years unopened under ideal conditions.