An anionic, aliphatic, aqueous polyurethane dispersion.
Suggested Uses: L-2183 is an adhesive grade polyurethane suggested for modifying industrial laminating adhesives. L-2183 may also be used in low tack pressure sensitive applications.
- Low activation temperature (200 ºF)
- Can be crosslinked to improve bond strength and heat-resistance.
- Non-crystalline nature
- Contains n-methyl pyrrolidone co-solvent.
|Solids Tolerance ||± 1 %|
|Viscosity ||50 to 500 cps (Brookfield RVT, sp. 3, 100 rpm)
|pH||7.0 to 9.5
|Softening Point ||200 ºF|
|Volatile Organic Compounds (VOC) Content (As Supplied) ||47 g/L|
|Elongation ||1200 %|
|Tensile Strength ||1500 psi|
|100 % Modulus ||75 psi|
|200 % Modulus ||85 psi|
|300 % Modulus ||100 psi|
L-2183 can be used as supplied or blended with vinyl acetate/ethylene, styrene butadiene and acrylic emulsions. The rheology of L-2183 may be modified with associative or acrylic thickeners for knife-over-roll or similar methods.
L-2183 may be crosslinked with carbodiimides, polyaziridines, water dispersible polyisocyanates, epoxy silanes or low temperature curing melamines to increase bond strength and heat resistance.