Sarnacol®-2170 R

• FM Global
• Underwriters Laboratories
• Underwriters Laboratories Canada
• Miami-Dade
• Florida Building Code
• ICC Code Compliant – ESR 1157
• CSA-A123.21

Liquid (Refer to Safety Data Sheet for additional information.)

12 months

Stored in a tightly closed pail at temperatures ranging between -20 and 30 °C (-4 and 86 °F).

694.2 g/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 R using solvent-resistant 19 mm (¾ in) 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 R to the substrate at a rate of 2 - 2.5 m²/L (80 - 100 ft²/US gal.) and allow to dry. After the substrate adhesive has dried completely, apply Sarnacol®-2170 R to the back side of the membrane at a rate of 4.9 m²/L (200 ft²/US gal.) 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 45 kg (100 lb) steel roller by rolling in two directions. Use a hand roller on vertical flashings.

Feltback Membrane Application:
Apply Sarnacol®-2170 R to the substrate at a rate of 2 - 2.5 m²/L (80 - 100 ft²/US gal.) and allow to dry. Apply a second coat of adhesive at a rate of 2.5 m²/L (100 ft²/US gal.) 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 45 kg (100 lb) steel roller by rolling in two directions. Use a hand roller on vertical flashings.

Coverage:
The typical coverage rate for the following applications are:

Bareback membrane: 5.3 - 6.2 m²/L (57 - 67 ft²/US gal)
Feltback membrane: 4.1 - 4.6 m²/L (44 - 50 ft²/US gal)

Note: Coverage rate may vary depending on substrate porosity, ambient temperature, and other jobsite factors (sucha as wastage,
applicator’s experience, etc.).