Absolute Barrier® Y-Series Y30BAC is seven layer, co-extruded membrane consisting of a very flexible, linear low-density polyethylene (LLDPE) and a barrier core layer to provide superior resistance to gas transmission. LLDPE provides high elongation, tremendous tear resistance and bursting strength. A minimum carbon black content of 2.0% provides excellent protection from UV rays and harsh weather conditions. Absolute Barrier® is an effective barrier against methane, radon, gasoline, benzene and many hazardous VOCs.