Dar-Tech Hauthane - L-2245 - PU - Textiles

Identification & Functionality

Features & Benefits

CASE Ingredients Features: Heat Resistance,
Improves Adhesion
Characteristics: May be crosslinked for improved adhesion and heat-resistance.

Non-crystalline nature

Low level of n-methyl pyrrolidone (NMP) co-solvent (~2%)

Applications & Uses

Application Method: Knife-over-roll
Compatible Polymers & Resins: Acrylics,
Ethylene Vinyl Acetate (EVA),
Isocyanates,
Polyvinyl Acetate (PVA),
Styrene Butadiene Rubber (SBR)
Compatible Substrates & Surfaces: Textiles,
Wood
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.
Application Method & Drying/Curing: 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.

Properties

	Value	Units	Test Method / Conditions
Density	8.75	lb/gal	—
pH	7.0 - 9.5	—	—
Softening Point	220.0	ºF	—
Solid Content	40.0	%	—
Solids Tolerance	0 - 2	%	—
Viscosity (Brookfield Rvt, Sp. 3, 100 Rpm)	50 - 500	cps	—
VOC Content (As Supplied)	0.25	lb/gal	—

	Value	Units	Test Method / Conditions
Elongation (20 Inches/Minute)	600.0	%	—
Modulus (100%, 20 inches/minute)	710.0	psi	—
Modulus (200%, 20 Inches/Minute)	910.0	psi	—
Modulus (300%, 20 Inches/Minute)	1270.0	psi	—
Tensile Strength (20 Inches/Minute)	3300.0	psi	—

Regulatory & Compliance

Packaging & Availability

Dar-Tech Hauthane L-2245