Carlisle SynTec Low-VOC Bonding Adhesive 1168, 5 Gal. Pail, Yellow, EPDM & TPO Contact Adhesive

This is a 5-gallon pail of Carlisle SynTec Low-VOC Bonding Adhesive 1168, a high-strength, solvent-based contact adhesive in yellow for bonding EPDM and TPO membranes to porous and non-porous substrates. One pail covers up to 300 sq. ft. of finished area and applies with a 9 in. medium nap roller.

Key Features:

• Low-VOC formula: Meets the under-250 gpl VOC content requirements of the OTC Model Rule for Single-Ply Roofing Adhesives.
• Membrane versatility: Bonds both EPDM and TPO membranes to a variety of porous and non-porous substrates.
• Extended open time: Features extended open time for easier installation.
• Wide substrate range: Compatible with polyiso insulation, concretes, plywood, OSB, wood fiberboard, SECUROCK, DensDeck Prime, masonry, and metal finishes.
• Roller application: Applies easily with a 9 in. medium nap roller for uniform coverage.
• Strong bond: High-strength contact adhesive creates a strong bond between membrane and substrate.

Specifications Table:

Coverage & How Much You Need:

The coverage rate is 60 sq. ft. per gallon of finished surface, so one 5-gallon pail covers no more than 300 sq. ft. (28 sq. m). Porous wall surfaces such as masonry block require two coats at the same rate; coverage may vary with jobsite conditions.

Fit and Compatibility:

Formulated for all Carlisle EPDM and TPO roof systems. Do not apply to splice areas or use with Carlisle Pressure-Sensitive products. Suitable substrates include polyisocyanurate insulation, insulating concretes, plywood, OSB, wood fiberboard, SECUROCK, DensDeck Prime, masonry, and metal finishes.

Frequently Asked Questions (FAQ):

Q: How much area does one pail cover?
A: At 60 sq. ft. per gallon, a 5-gallon pail covers no more than 300 sq. ft. of finished area; porous masonry walls need two coats.

Q: Which membranes does it bond?
A: It bonds Carlisle EPDM and TPO membranes to both porous and non-porous substrates.

Q: How is it applied?
A: Stir to a uniform yellow color, apply with a 9 in. medium nap roller to both substrate and membrane, wait for flash-off until it passes the tack test, then roll the membrane in and broom for contact.

Q: Is it VOC compliant everywhere?
A: It meets the OTC Model Rule (<250 gpl), but listed California counties require the Carlisle Low-VOC Bonding Adhesive 1168 instead.

Q: How should I store it?
A: Keep it warm (60-90°F); if stored below freezing, return to room temperature for at least 24 hours before use.

Q: Can I use it with Pressure-Sensitive membrane products?
A: No, do not use in conjunction with Carlisle's Pressure-Sensitive products or on splice areas.

Expert Verdict — Reviewed by the SuperArbor Pro Desk

Mix thoroughly, scraping the pail sides and bottom until the adhesive is a uniform yellow with no dark streaks, and keep it warm for easier application. Let the membrane relax for at least half an hour, apply uniformly with no globs or puddles, and install only after the adhesive passes the tack test to avoid trapped solvent blisters. In hot weather flash-off can occur in 5 minutes or less, so monitor continuously; any coated area exposed to rain must dry and be recoated.

This adhesive is extremely flammable; do not smoke, use only with adequate ventilation away from ignition sources, and review the Safety Data Sheet before use.

Order the Carlisle SynTec Low-VOC Bonding Adhesive 1168 in a 5-gallon pail for VOC-compliant EPDM and TPO membrane bonding.