The standard stipulates the specifications, markings, requirements, test methods, inspection rules and markings, packaging, transportation and storage of SBS waterproof membrane HDPE mask and base film. It is suitable for use on the upper and lower surfaces of waterproof membranes that are heat-resistant, easy to melt, and highly transparent, using HDPE resin as the main raw material, adding appropriate amounts of additives, and producing through blow molding and casting methods.
T/HBBWA 41-2021 history
2021T/HBBWA 41-2021 SBS waterproof membrane HDPE mask, bottom film