Flex TPO Low VOC Bonding Adhesive - Manual

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Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9500 Fax: (610) 916-9501 www.FlexRoofingSystems.com
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Product Data Sheet
FLEX TPO LOW-VOC BONDING ADHESIVE
PRODUCT DESCRIPTION
Flex TPO Low-VOC Bonding Adhesive is a high strength solvent-based contact adhesive that allows
bonding of Flex TPO membrane to various porous and non-porous substrates.
PHYSICAL PROPERTIES *
Base: Synthetic Rubber
Color: Yellow
Solids: 22.2%
VOC: 250g/L max
Flash Point: 0º F (-17º C) Closed Up
Brookfield Viscosity: 3300 Centipoises
Average Net Weight: 8.1lbs/gal (3.7 kg/gal)
Packaging: 5 gal Pail
Shelf Life: 1 Year
APPLICATION
1. Stir thoroughly until all settled pigments are dispersed and the adhesive is uniform in color.
Minimum 5 minutes stirring is recommended.
2. The surface, on or against which adhesive is to be applied, shall be clean, smooth, dry, free of fins,
sharp edges, loose and foreign materials, oil and grease. Depressions greater than ¼” (6 mm)
should be feathered, using epoxy, mortar or other approved patching material. All sharp
projections shall be removed by sweeping, blowing or vacuum cleaning.
3. After thorough stirring (minimum 5 minutes), apply Flex TPO Low-VOC Bonding Adhesive to
substrate and membrane using a 9” (73 mm) medium nap roller. Application shall be continuous
and uniform avoiding globs or puddles. An open time of 5 to 50 minutes, based on drying
conditions is recommended before assembly. Flex TPO Low-VOC Bonding Adhesive must be
allowed to dry until it does not string or stick to dry finger touch. Any coated area which has been
exposed to rain should be allowed to dry and then recoated. Do not apply adhesive to splice
areas to be hot air welded.
4. Roll the membrane onto the adhesive coated substrate while avoiding wrinkles. Immediately
brush down the bonded portion of the sheet with a soft bristle push broom or a clean dry roller
applicator to achieve maximum contact. In some applications swelling of the membrane may