All-weather PU adhesive foam (screw-on) with very low expansion. Tec7 Foam Tack 750ml screw-on is the best choice for mounting and bonding PIR insulation boards where speed, strength and insulating power are important. For use with the Tec7 Pur Gun Professional (to order separately). The Pur Gun allows you to control the dosing of PUR foam easily. One 750ml can is enough to bond 10 to 12m² of PIR insulation panels.