already.” Maximum flexibility In most cases, the change from classic PUR hot melt adhesives to a PUR MR hot melt adhesive is said to easy and uncomplicated. Jowat [...] Isocyanate is a main building block of polyurethane and a key ingredient in reactive PUR hot melt adhesives. While some of the isocyanate is bound into polymers, the [...] system or providing appropriate personal protective equipment. Conventional PUR hot melt adhesives generally contain about two to five percent of residual monomers
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