Flex TPO Bonding Adhesive User Manual
Product data sheet, Flex tpo bonding adhesive
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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 BONDING ADHESIVE
PRODUCT DESCRIPTION
Flex TPO 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: 20%
Flash Point: -4ºF (-20ºC) Closed Cup
Brookfield Viscosity: 2600 Centipoises
Avg. Net Weight: 7.1 lbs/gal (3.2 Kg)
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 Bonding Adhesive to substrate and
membrane using a 9” (23 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 are
recommended before assembly. Flex TPO 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.