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DUOTACK® SPF HFO ADHESIVE SKU: A-904AHFO (Part A), A-904BHFO (Part B)

DUOTACK® SPF HFO ADHESIVE SKU: A-904AHFO (Part A), A-904BHFO (Part B)


 
DUOTACK SPF HFO Adhesive is a low pressure, two-component spray polyurethane foam adhesive formulated for adhering SENTINEL HFB (heavy fleece back) membranes, insulation and coverboard to approved substrates. DUOTACK SPF HFO Adhesive was developed to provide a much quicker and easier application in order to save time and money for rooftop projects.

DUOTACK SPF HFO Adhesive comes in a kit, containing both the A & B side components, a 25 ft hose, an application gun and 10 ColorWise Temperature Warning replacement nozzles.

Product Properties

  • Overlying Material PVC Membrane
  • Overlying Material Coverboard, Insulation

Installation

DUOTACK SPF HFO Adhesive should be applied to approved substrates free of oil, grease and other contaminants. To adhere SENTINEL HFB (Heavy Fleece Back) membranes, DUOTACK SPF HFO Adhesive should be applied using a spatter application. Apply the adhesive to 55-65% of the substrate, which yields an approximate coverage rate of 30 squares per kit. The membrane is then rolled and broomed into place prior to curing.

To adhere insulation and coverboard, DUOTACK SPF HFO Adhesive should be applied in a ribbon application at 2.5 in wide beads, spaced at 12 in apart. Maximum spacing for
ribbons is 12 in on center, which yields approximately 35 squares per kit. Spacing 4 in or 6 in on center may be used on the perimeter and in corners. Decreased spacing of the ribbons will result in reduced coverage rates.

Product open time can range from 1-10 minutes depending on ambient air and substrate temperatures. The ambient air temperature should be between 40-­100°F (5-38°C).

Refer to the SENTINEL PVC Technical Manual for additional application guidelines.

 

Testing & Approvals

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