TPO Roofing Systems

EverGuard TPO Bonding Adhesive 1121 Sell Sheet

EverGuard® TPO 1121 Bonding Adhesive

A solvent-based rubberized adhesive.

BMI GAF TPO EverGuard Bonding Adhesive is a contact-type bonding adhesive specially designed for bonding TPO single-ply roofing membranes and flashings to various roofing substrates. EverGuard Bonding Adhesive is a general-purpose rubber-based bonding adhesive for attaching TPO-based single-ply membranes to various substrates, including polyisocyanurate insulation and gypsum-based cover boards.


Why EverGuard® TPO SBA 1121 Bonding Adhesive?

A fast-drying, solvent-based rubberized adhesive designed for use with smooth back TPO-based membranes. Easily applied using a roller, brush, or spray.



  • Excellent coverage up to 70 sq ft per gallon of bonded membrane
  • Fast-drying solvent system
  • Easy application using roller or brush
  • Spray application also possible
  • High initial tack

BaseSynthetic polymer
SolventHydrocarbon blend
Flash point0°F (-18°C)
Weight / Gallon7.4 lb. (3.36 kg)
Viscosity2300 – 2700 cps
Coverage50 – 70 sq. ft./gallon (1.23 – 1.75 m²/liter) of installed membrane
Total solids25% +/- 2.5%
Voc611 grams / liter
Shelf life1 year, unopened
Open timeUp to 60 minutes
Dry time5 – 15 minutes
Packaging5-gallon (18.9 liter)
Weight37 lbs / pail


BMI Everguard TPO membranes are manufactured by GAF, please click here to know more.