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2022

NEW CRYSTAL PRODUCTS (PU)

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The main chemical component of PU is POLY URETHANE. WET PU is BASE with RELEASE PAPER, the thickness is basically from 0.4MM to 1.8MM, depending on the thickness, it has different functions, 0.4MM-0.7MM is relatively thin，this thickness is generally used for SHOE LINING, 0.7MM-1.8MM for SHOE UPPER, BAG LEATHER, FURNITURE LEATHER and DECORATION LEATHER. There is also DAY PU, the thickness of the DAY PU is relatively thin, only between 0.3MM and 0.6MM, it does not have a wet BASE, and the poly urethane resin is directly applied on the cloth, so it is very thin. The raincoats and sun protection clothing seen basically belong to this dry method of PU coating.

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