1L AD1147

AD1147 are high strength adhesives for bonding liquid urethanes to various substrates during the curing process. These systems are a stable solution of polymers in a solvent blend which requires heat to effect cure.

An extensive evaluation program has shown AD1147 to be capable of bonding an exceptional variety of inorganic and organic materials together. Bonds to aluminum alloys, magnesium, iron, steel, glass, glass-fibre laminates, wood, and leather have high strength and excellent resistance to hydrolysis and environmental extremes.

RECOMMENDED PROCESSING PROCEDURES:
Apply one or two coats of AD1147 with a soft brush, allowing the adhesive to flow on the surface. Application may also be accomplished by spraying, roller coating, or by doctor-blade. Air-dry ½ hour between coats and one-hour or longer after the final coat.

NOTE: For optimum results, primer film thickness should be 0.0005 inches to 0.0015 inches. Under no circumstances should film thickness be less than 0.0005 inches. Since these coatings contain a solvent, it is important that all residual solvent in the film be removed to obtain high bond strengths. A drying period of ½ hour at 70°C (158°F) is sufficient to accomplish solvent evaporation. When bonding urethanes to metals, the drying period can be part of the preheat cycle used to bring the mould and part to the desired curing temperature. Preheat temperatures of 90-100°C (194-212’F) for 2 to 3 hours are not detrimental. The adhesion of the urethane to the primer film is excellent, and the adhesion of the primer to the metal is improved.