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He Application And Advantages Of PUR Glue

Sep 13, 2017

PUR glue (also known as polyurethane PUR hot melt adhesive) is to adapt to a variety of different weight of the printing paper, plastic film varnish and ink and other materials and design, is a rigid and soft low temperature hot melt adhesive. Its main component is active polyols (polyesters, polyethers, etc.) with active hydrogen, low molecular weight diols (chain extenders) and isocyanate addition polymers. Isocyanate groups encounter moisture in the air will produce irreversible text reaction to form a solid adhesive layer This is the inherent characteristics of PUR glue.