PolyFoam Adhesive 240

PolyFoamTM Adhesive 240 is a two-part spray applied polyurethane foam developed to adhere insulation board and felt-backed single-ply roofing to a variety of substrates. The cure has been adjusted to allow repositioning of the adhered materials for up to ten minutes after application.

SUBSTRATES

Currently known compatible bonding surfaces include plywood, waferboard, wood fiber recovery board, tar and gravel built-up, concrete, urethane foam, isocyanurate board, polystyrene bead board, extruded polystyrene board, SPS asphalt sheet and primer coated corrugated metal roof sheet. Substrate must be dry and free of dirt, grease, release agents, loose or damaged coating or other contaminants.

EQUIPMENT

One-to-one proportioning unit capable of maintaining 110° to 130°F (45° to 54°C) operating temperature and pressure between 1000 and 2000 psi. (6.9 and 13.8 MPa) Two-to-one transfer pumps may also be required to adequately supply the metering pump. Spray guns normally used for the application of other types of Polyurethane Foam can be used to apply PolyFoamTM Adhesive 240. See PolyFoam Spray Guide for additional information.

REGULATORY

PolyFoam Adhesive 240 contains no VOC's, CFC's or HCFC's and will not harm the ozone layer. The "B" Component contains 25% post-consumer recycled material.

TECHNICAL DATA

REACTIVITY

Cream Time: 3-5 Seconds

Gel Time: 2.5-4 Minutes

Tack Free Time: 7-10 Minutes

LIQUID PROPERTIES

Isocyanate

• Viscosity @ 77 °F (25°C):180 cps ± 20
• Color: Brown
• Lbs. per Gallon: 10.2 (122 kg/L)
• Flash Point: >300°F (149°C)
• Mixing Ratio by Weight: 53
• Mixing Ratio by Volume: 50
• Storage Stability: 6 Months

Adhesive 240

• Viscosity @ 77 °F (25°C): 975 cps
• Color: Brown
• Lbs. per Gallon: 9.1 (1.09 kg/L)
• Flash Point: >212°F (100°C)
• Mixing Ratio by Weight: 47
• Mixing Ratio by Volume: 50
• Storage Stability: 6 Months

PHYSICAL PROPERTIES

• Nominal Density (ASTM D-1622): 3 - 4 lbs. per ft³ (48 - 64 kg/m³)
• Water Absorption Rate (ASTM D-2842): 0.09 lbs. per ft² (.4 kg/m²)
• Dimensional Stability (ASTM D-2126): 5% Volume change

Recommendations and safety considerations for application are outlined in PolyFoam Spray Guide. The information contained in this Data Sheet is intended to be used as a guide and is subject to change without notice. These suggestions and data are based on information believed to be reliable but unknown risks may be present. They are offered in good faith, but without guarantee, as conditions and methods of use of this product are beyond our control. Any obligation of the seller or manufacturer shall have no force or effect unless it is in writing and signed by officers of the manufacturer.

All warranties of any kind, whether expressed or implied, including warranties of fitness for a paticular purpose and that the goods are mercantable quality, are specifically disclaimed. Contact Gaco Western for information concerning its limited warranty and its availability.