DESCRIPTION:Soft, aliphatic, water-borne, polyurethane dispersion.

SUGGESTED USES:HD-4638 was designed for use in textile applications as a versatile polyurethane coating. Due to its overall properties, HD-4638 can be used as a finish or a coating for many textile applications. This product is ideally suited for use as an anti-fray finish on textile fabrics that must have a soft hand. HD-4638 is also suitable for textile coating applications that require excellent low temperature flexibility and crack resistance.

CHARACTERISTICS:

• Superior flexibility
• Soft, tough, flexible, dry film
• Excellent UV resistance
• Very good abrasion resistance
• Superior low temperature flexibility and crack resistance
• High melting point (320°F)
• Good strength properties

APPLICATION:Spray or pad -- solids may be adjusted for optimum add-on. May be thickened with HA-900 for knife coating.

CURING:Excellent strength properties as supplied. Melamine-formaldehyde crosslinkers, such as HA-808 (3 - 6 phr), will provide improved performance.