Paradiene 20 SA P is a high performance, self-adhesive, SBS-modified bitumen base ply specifically designed for use in Parapro roof membrane systems. Paradiene 20 SA P consists of a lightweight random fibrous glass mat impregnated and coated with high quality styrene-butadiene-styrene (SBS) modified bitumen. The unique top surface is factory coated with a proprietary Syntan acrylic coating. The back surface is coated with a self-adhesive bitumen layer specifically formulated for optimum adhesion in low-slope membrane applications, and it is lined with a high strength polyolefin release film.