PURBlue 4 melters efficiently process moisture-cure reactive adhesives, such as polyurethanes (PUR), from two-, three- or four-kilogram foil-encased slugs or form-liner slugs with foil bottoms. A user-friendly design combines simple, reliable operation with easy cleaning and maintenance. PURBlue melters provide the ability to easily use small volumes of PUR for increased productivity and reduced adhesive waste.