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Polyethylene closed-cell foam board is a polymer joint waterstop material. According to the sampling standards for synthetic polymer waterproof membranes (sheets) {(GB 50207-2012) (GB 50208-2011) (GB 18173.1-2000) (GB 18173.2-2006/2012)}, cut the sample polyethylene closed-cell foam board 300mm from the outer edge and then cut longitudinally (can be directly cut with a wallpaper knife). The length and width of the required testing material are 1000mm×1000mm respectively, that is, 2 pieces of 1 square meter foam board are sufficient.
One piece is for physical performance testing, and the other piece is spare (Note: test items that must be tested: tensile strength at break, elongation at break, water impermeability, low-temperature bending property; others: density, recovery rate)
Due to different testing institutions, the required samples also vary. For relevant testing, you can call Kunming Quality Testing Center for consultation at 0871-63523623
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