Sarnacol® OM Feltback Membrane Adhesive

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

Liquid

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

Store in a cool, dry location at temperatures between 55°F (12.8°C) and 85°F (29.4°C). Protect from freezing at all times. Keep containers closed. Contamination by moisture or basic compounds can cause dangerous pressure build-up in a closed container.

32 g/L (Part A + B Combined)

Application rates vary depending on surface roughness and absorption rate of the substrate. Typical coverage rates when used on:

• Structural Concrete is up to 2.5 squares per gallon
• Mineral Surface Modified Bitumen is up to 1.7 squares per gallon
• Approved Sika Vapor Retarders and Ply Sheets are up to 1.7 squares per gallon
• Polyisocyanurate insulation and high density polyisocyanurate roof boards are up to 2.5 squares per gallon

Rates are based on an application pattern of ribbons 12" (30 cm) o.c.

All surfaces must be clean, dry, and free of dirt, grease, oil, or other contaminants or particulates. All concrete surfaces must be cured prior to applying Sarnacol® OM Feltback Membrane Adhesive.

SpotShot Applicator:
Remove the plastic plugs from the cartridge mixing head. Attach a mixing tip to the threaded mixing head. Place the cartridge into the applicator. When starting a new cartridge, dispense some adhesive into a bucket or other suitable receptacle to achieve a proper mix. Apply the adhesive directly to the substrate, using a ribbon pattern. Space the 3/4– 1" (19 – 25 mm) wide beads at a maximum of 12" (30 cm) o.c. to achieve proper coverage rate. Actual ribbon spacing will depend on the wind uplift rating required. Allow the adhesive to turn to a caramel color (normally 3 – 5 minutes) before placing the feltback membrane into the adhesive. The adhesive is designed to provide approximately 4 – 8 minutes of open time during a typical summer day. The membrane must be positioned and rolled into place quickly. A minimum 75 lb (34 kg) steel roller must be used to roll the membrane.

PaceCart2 Installation:
Install Part A and Part B components following instructions on the packaging. Always insure that the Part A and Part B containers are always
hooked to the same dispensing holders or hoses (i.e. do not reverse the dispenser holders and hoses between Part A and Part B). All valves on the dispensing unit must be completely opened so a 1:1 ratio is achieved when moving the adhesive through the disposable mix tip and onto the substrate in a semi-liquid state. When starting a new box set, dispense some adhesive into a bucket or other suitable receptacle to achieve a proper mix.
Apply the adhesive directly to the substrate, using a ribbon pattern. Space the 3/4 – 1" (19 – 25 mm) wide beads at a maximum of 12" (30 cm) o.c. to achieve proper coverage rate. Actual ribbon spacing will depend on the wind uplift rating required. Allow the adhesive to turn to a caramel color (normally 3 - 5 minutes) before placing the feltback membrane into the adhesive.
The adhesive is designed to provide approximately 4 – 8 minutes of open time during a typical summer day. The membrane must be positioned and rolled into place quickly. A minimum 75 lb (34 kg) steel roller must be used to roll the membrane.