High resistance to water, moisture and chemicals
Polyurethane-based (PUR) hotmelt adhesives are applied as a melt like other hotmelt adhesives. The setting and strength build-up takes place in two steps: At first by cooling the melt purely physically and then followed by moisture-initiated chemical crosslinking of the individual prepolymers. Depending on the respective substrate surface, a covalent substrate-adhesive bond can also additionally strengthen the adhesion. PUR-based hotmelts naturally have a high resistance to moisture, water and many chemicals. In adaption to your open or closed application system EUKALIN offers you polyurethane-based (PUR) hotmelts with a wide range of open and setting times.