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PU Adhesives

Firestone I.S.O. Twin Pack adhesive is a two-component low-rise polyurethane adhesive designed for anchoring acceptable roof insulation or cover boards to a building's structural deck, adhered vapor retarders, smooth or properly prepared graveled bituminous surfaces or to adhere multiple layers of acceptable insulation boards.

Approved insulations/coverboards

- Wood fiber
- PUR/PIR insulation
- Polystyrene
- Mineral wool
- DensDeck Prime

Approved substrates

- Structural concrete
- Plywood and OSB
- Steel
- Modified bitumen membranes and base sheets
- Approved insulations