Flat lamination-PUR hot melt glue
PUR flat hot-melt adhesive (Polyurethane Reactive), the full name is moisture-curing reactive polyurethane hot-melt adhesive. The main component is an isocyanate-terminated polyurethane prepolymer. The isocyanate group will produce irreversible cross-linking when it encounters moisture in the air. The joint reaction forms a strong adhesive layer, which is the inherent characteristic of PUR Glue.