DESCRIPTION:An anionic, aliphatic, aqueous polyurethane dispersion with a low activation temperature.

SUGGESTED USES:L-2245 is an adhesive grade polyurethane suggested for industrial laminating applications where a pre-lamination coating is applied to a substrate and then dried. Ideal for bonding plasticized vinyl sheet to itself and to other substrates such as rubber, wood, cardboard and textiles.

CHARACTERISTICS:

• May be crosslinked for improved adhesion and heat-resistance.
• Non-crystalline nature
• Low level of n-methyl pyrrolidone (NMP) co-solvent (~2%)

APPLICATION:L-2245 can be used as supplied or blended with vinyl acetate/ethylene, styrene butadiene and acrylic emulsions. The rheology of L-2245 may be modified with associative or acrylic thickeners for knife-over-roll or similar methods.

DRYING/CURING:L-2245 will dry to a tack-free film in 10 minutes at 200°F. Heat activation will occur between 215 - 225°F. L-2245 may be crosslinked with polyaziridines, water dispersible polyisocyanates, epoxy silanes or low temperature melamines to increase bond strength and heat resistance.