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How to improve the bonding strength of pur hot melt glue pur glue

by:Sinograce Chemical     2021-02-07
In the process of normal use, we how to improve the bonding strength of PUR hot melt glue? We have the following address. A, choose suitable for PUR glue, PUR glue points material, choose the suitable glue is very important. Second, the base material. PUR manufacturers develop custom-made special glue, please. 3, 1, plastic surface treatment: dip in with cotton cloth with isopropyl alcohol to clean plastic surface, some adhesive after solvent evaporation. When plastic surfaces contaminated with mold release agent, need isopropyl alcohol treatment with fine gauze grinding at the same time, some adhesive after solvent evaporation. 2, glass: with dip in with butanone cotton cloth to clean the glass surface, some adhesive after solvent evaporation. Under the condition of high temperature/humidity, must consider using bottom coating processing. 3, metal: dip in with cotton cloth to clean metal surface of butanone, at the same time with fine gauze burnish, some adhesive after solvent evaporation.
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