I.S.O. Twin Pack Insulation Adhesive is a two-component, LVOC, low-rise polyurethane adhesive designed for anchoring acceptable roof insulation and cover boards to acceptable substrates, as well as for adhering multiple layers of insulation. I.S.O. Twin Pack is a solvent free and VOC free insulation adhesive that contains no harmful HCFC or CFCs. I.S.O. Twin Pack Insulation Adhesive is suitable for cold weather applications when stored properly. I.S.O. Twin Pack Insulation Adhesive is dispensed using I.S.O. Twin Pack Hand Dispenser (TIS 1519) I.S.O. Twin Pack Four Bead Dispenser (TIS 1520); Multi-Bead Plus Dispenser; Battery Powered Single Bead Applicator or a Pneumatic Single Bead Applicator. The dispensers extrude I.S.O. Twin Pack Part A and B simultaneously to the static mixer, which results in a mixed adhesive in bead form.