Sarnacol® OM Board Adhesive

• FM Global
• Underwriters Laboratories
• Miami-Dade County / Florida Building Code

Liquid

Cartridges & Box Sets: 18 months if stored properly in original unopened, sealed and undamaged packaging.

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

Cartridges & Box Sets: Store in a cool, dry location at temperatures between 12.8 °C (55 °F) and 29.4 °C (85 °F). 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.

Drum Sets: Store in a well-ventilated, cool, dry location at temperatures between 7 °C (45 °F) and 35 °C (95 °F). Protect from freezing at all times. When not in use keep stored containers closed. For long term storage, partially empty containers should be filled with dry inert gas at atmospheric pressure to avoid reaction with moisture. Contamination by moisture or basic compounds can cause dangerous pressure build-up in a closed container.

11 g/L (Part A + B Combined)

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

• 1.5 L cartridge is approximately 56 m² (600 ft²) per case
• 10 gallon box set is 167 m² to 204 m² (1,500 ft² to 2,000 ft²)
• 30 & 110 gallon drum sets is 0.41 L/m² (100 ft²/US gal.)

Rates are based on an application pattern of 4 ribbons, 19 - 25 mm (¾–1 in) beads, 300 mm (12 in) o.c. per 1.2 m x 1.2 m (4 ft x 4 ft) insulation board.

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 Board Adhesive.

SpotShot Applicator – Cartridges:
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 Sarnacol® OM Board Adhesive directly to the substrate using a ribbon pattern. Space 19 - 25 mm (¾–1 in) wide wet beads at a maximum of 300 mm (12 in) 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 pink color (approximately 4 - 8 minutes) before placing the boards into the adhesive. Walk boards in, ballast if necessary to achieve proper contact with substrate. Adhesive open time varies depending on weather conditions.

PaceCart Installation – Box Sets:
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 19 - 25 mm (¾–1 in) wide wet beads at a maximum of 300 mm (12 in) 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 pink color (approximately 4 - 8 minutes) before placing the boards into the adhesive. Walk boards in, ballast if necessary to achieve proper contact with substrate. Adhesive open time varies depending on weather conditions.

High Pressure Spray Application – Drum Sets:
The Part B (resin) component must be mixed for at least one minute. The A and B components should be sprayed at a 1:1 ratio.

Sarnacol® OM Board Adhesive is dispensed in a spray that rises 3.2 mm (⅛ in) to 6.4 mm (¼ in) above the substrate. Place the boards into the adhesive shortly after it has reached its maximum rise while it is still wet and tacky and before it reaches its tack-free state. Maximum rise typically occurs within 2 minutes of application. The tack-free time is usually 3 to 5 minutes. Walk the boards into place and ballast.

A chemical cure takes place securing the board in approximately 4 to 8 minutes after application, depending on temperature and weather
conditions. The set up time is typically 10 to 12 minutes. The tack free time and set up time will decrease as temperature increases. Multiple layers of boards should use the staggered joint method of application.