What does the PE side of SBS waterproof membrane mean?
Is the side of the composite PE filmThe correct representation method of SBS waterproof membrane: SBS Ⅰ PY PE PE 4 10 GB18242-2008; when simplified, it is written as: SBS Ⅰ PY PE PE 4. The meaning of the expression (SBS waterproof membrane) (type I) (polyester felt carcass) (the upper surface is PE polyethylene film surface)) (the lower surface is PE polyethylene film surface) (thickness is 4mm) (each coil 10m2) (Technical indicators implement GB18242-2008 standard)
The 4 you asked means the coil is 4mm thick.
i is Ⅰ, which means that the technical performance is type Ⅰ, which is also a conventional type, and the type Ⅱ technical index is higher.
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