Foster® Quick-Tack™ Adhesive 85-60

• Foster® Quick-Tack™ Adhesive 85-60 is a solvent-free, very low VOC synthetic elastomer emulsion. It is non-flammable when wet and fire-resistive when dry. It can be applied to either the metal or the insulation. The dry film stays moisture resistant.
• Foster® Quick-Tack™ Adhesive 85-60 can also be applied as a contact bond adhesive, being applied to both surfaces in areas where water entrapment may be a problem such as polystyrene to metal.
• Foster® Quick-Tack™ Adhesive 85-60 is ideal for bonding fibrous glass insulation to concrete, block and other masonry surfaces in building construction.
• Foster® Quick-Tack™ Adhesive 85-60 meets ASTM C916 Type II (ASC- A-7001A, Type II) and NFPA-90A and 90B 25/50 requirements.

Material Preparation
Stir well. Do not thin. Apply only to clean, dry, oil-free surfaces. Keep container closed when not in use.

Wet Bond Application

Apply Quick-Tack™ Adhesive to the metal surface uniformly at 300 – 600 sq. ft./gal. (7.4 – 14.7 m2 /l). While still wet, press the insulation into place, making sure that complete contact is made with applied adhesive.

Contact Bond Application

Apply Quick-Tack™ Adhesive to the metal surface at 350 - 450 sq. ft./gal. (8.6 - 11.0 m² /l). Coat the insulation surface at 120 - 180 sq. ft./gal. (2.9 - 4.4 m² /l). Allow the adhesive to tack fully and allow most of the water to escape, 20 - 40 minutes depending on temperature and humidity. Position the two mating surfaces together and apply pressure to assure intimate contact. A hand roller is suitable for this purpose. Alternately apply the adhesive to the metal surface at a rate of 120 - 180 sq. ft./gal. (2.9 - 4.4 m² /l), then press the insulation into the wet adhesive. Immediately remove the insulation and allow the water to fully flash from both surfaces (30 - 120 minutes). Reinstall insulation to surface using firm pressure over the entire surface.

Brush/Roller
Use clean equipment suitable for use with water-based paints.

Spray

Foster® Quick-Tack™ Adhesive 85-60 can be applied using a variety of conventional air atomizing and airless spray equipment. For spray equipment information, please consult Airless Spray Recommendations or contact your spray equipment supplier. Average viscosity range: 8,000 - 15,000 cps. Before using for the first time, existing spray systems must be completely cleaned and free of the old adhesive and solvents. Corrosion resistant pumps and fittings are suggested.

Clean Up
When wet, use warm (not hot) soapy water. When dry, use mineral spirits (flammable) or chlorinated solvent (non-flammable).

• Apply between 40°F and 100°F, protect from freezing until dry.
• Avoid repositioning the insulation after initial placement.
• Not suggested for use with roll coating machines.
• Always test plastic foam insulation for warpage when using any water-based adhesive.
• Overhead applications may require mechanical fasteners.

¹ - Tested at coverage rate of 200 sq. ft./gal. Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.