The products are produced with SBS elastomer and bitumen as raw materials.using polyethylene film.Aluminium foil coated on the upward or no file (both side self - adhesive)while self-adhesive protection layer on the downward surface.It has a widely prospect new construction waterproof materials.Good self-adhesion,no leaking,cold flexibility,especialy in self-adhesion.That is unque product in waterproof and application.