The Duro-Last WB II Adhesive is a polymeric waterborne adhesive used to bond all Duro-Last roofing membranes to a variety of substrates on horizontal and vertical surfaces. The WB II Adhesive has VOC content less than 250 g/L and meets all VOC restrictions and regulations in the United States.

WB II adhesive may be used on the following substrates after they have been properly prepared as described in either the Duro-Last Adhered DuroFleece® Roofing System specification or the Adhered Systems specification. The installing contractor is responsible for following all applicable building, plumbing and electrical codes.

• Structural Concrete (poured in place or precast)
• Wood (Plywood, OSB or Lumber)
• Polyisocyanurate Rigid Insulation Board
• Duro-Guard® DensDeck® Prime Roof Board
• Duro-Guard DensDeck Roof Board (not recommended)
• Duro-Guard SECUROCK® Gypsum-Fiber Roof Board