GenFlex EPDM Bonding Adhesive, Solvent-Based Membrane Adhesive, 5 Gallon Pail

GenFlex EPDM Bonding Adhesive is a solvent-based contact adhesive formulated for bonding GenFlex EPDM membranes and flashings to GL ISO, HD ISO, and CG ISO insulations, wood, metal, masonry, and other acceptable substrates. Each order is one 5-gallon pail, with coverage of roughly 45 to 60 sq ft per gallon.

Key Features:

• Membrane Bonding: Solvent-based contact adhesive designed specifically for GenFlex EPDM membranes and flashings.
• Multi-Substrate: Bonds to GL ISO, HD ISO, and CG ISO insulations, wood, metal, masonry, and other acceptable substrates.
• Known Coverage: Coverage of 45-60 sq ft per gallon depending on substrate porosity and texture.
• One-Year Shelf Life: Rotate stock so stored material has not exceeded a one-year shelf life.
• Controlled Storage: Store in original unopened containers between 60 and 80 degrees F until use.

Specifications Table:

Coverage & How Much You Need:

Expect 45-60 sq ft per gallon (1.10-1.47 sq m per liter) depending on the substrate. A 5-gallon pail covers roughly 225-300 sq ft; porous or uneven insulation surfaces yield the lower end while smooth, non-porous surfaces yield the higher end.

Fit and Compatibility:

Formulated for GenFlex EPDM membranes and flashings bonded to GenFlex GL ISO, HD ISO, and CG (coated glass facer) ISO insulations, wood, metal, masonry, and other acceptable substrates.

Frequently Asked Questions (FAQ):

Q: What is included?
A: One 5-gallon pail of GenFlex EPDM Bonding Adhesive.

Q: How much area does a pail cover?
A: At 45-60 sq ft per gallon, a 5-gallon pail covers roughly 225-300 sq ft depending on the substrate.

Q: Which substrates can it bond to?
A: GenFlex GL ISO, HD ISO, and CG ISO insulations, wood, metal, masonry, and other acceptable substrates.

Q: How should it be stored?
A: In original unopened containers at 60-80 F, rotating stock within the one-year shelf life.

Q: Does substrate type change coverage?
A: Yes, uneven or porous insulation surfaces lower coverage while smooth non-porous substrates raise it.

Expert Verdict Reviewed by the SuperArbor Pro Desk

As a contact adhesive, both the membrane and substrate need an even coat and proper flash-off before mating; applying too soon traps solvent and too late weakens the bond. Order based on the lower coverage figure for porous ISO boards to avoid running short mid-roll. Verify shelf life on the pail before starting a large adhered EPDM job.

Solvent-based adhesives produce flammable vapors; ventilate the work area, eliminate ignition sources, and follow the safety data sheet.

Order GenFlex EPDM Bonding Adhesive in a 5-gallon pail for fully adhered EPDM membrane and flashing work.