Sarnacol®-2170 VC Adhesive

• FM Global
• Underwriters Laboratories
• ICC Code Compliance – ESR 1157
• Miami-Dade County
• Florida Building Code

Liquid

12 months if stored properly in original unopened, sealed and undamaged packaging.

Store in tightly closed containers in temperatures between -4°F (-20°C) and 86°F (30°C).

0 g/L with exemptions*; 348 g/L without EPA exemptions

* The U.S. EPA considers the solvent in Sarnacol®-2170 VC Adhesive as “exempt”, and therefore the product can be used in all jurisdictions operating under the EPA guidelines. At this time, the SCAQMD does not recognize it as “exempt”, and therefore the adhesive cannot be used in jurisdictions operating under their guidelines (e.g. specific counties in CA). 2170 VC is not eligible for credits in LEED or Green Globes projects.

The coverage rate may vary depending on substrate porosity, ambient temperature, and experience. The typical coverage rate for the following applications are:

• Bareback membrane: 57 – 67 ft²/gal (1.3 – 1.6 m²/L)
• Feltback membrane:  44 – 50 ft²/gal (1.1 – 1.2 m²/L)

All work surfaces should be clean, dry, free of dirt, dust, debris, oils and other contaminants.

Mix well before use.

General Application:
Apply Sarnacol 2170 VC using solvent-resistant 3/4" (19 mm) nap paint rollers in a smooth, even coating with no gaps, globs, puddles, or similar inconsistencies. Clean any wet adhesive from the seams before welding.

Bareback Membrane Application:
Apply Sarnacol 2170 VC to the substrate at a rate of 80 - 100 ft²/gal (2 – 2.5 m²/L) and allow to dry. After the substrate adhesive has dried completely, apply Sarnacol 2170 VC to the back side of the membrane at a rate of 200 ft²/gal (4.9 m²/L), and allow to become tacky (producing strings) when touched with a dry finger. Do not allow the adhesive on the back of the membrane to dry. Roll the tacky coated membrane onto the previously coated dry substrate being careful to avoid wrinkles. Press the bonded sheet firmly in place with a minimum 75 lb (34 kg) steel roller by rolling in two directions. Use a hand roller on vertical flashings.

Feltback Membrane Application:
Apply Sarnacol 2170 VC to the substrate at a rate of 80 – 100 ft²/gal (2 - 2.5 m²/L) and allow to dry. Apply a second coat of adhesive at a rate of 100 ft²/gal (2.5 m²/L) to the previously coated dried substrate. Do not allow the second coat of adhesive to dry. Unroll the membrane immediately into the second layer of wet adhesive. Press the bonded sheet firmly in place with a minimum 75 lb (34 kg) steel roller by rolling in two directions. Use a hand roll on vertical flashings.