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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.

Characteristics:
  • Low activation temperature (200 ºF)
  • Can be crosslinked to improve bond strength and heat-resistance.
  • Non-crystalline nature
  • Contains n-methyl pyrrolidone co-solvent.
Unit of Measure

Physical Properties

Solids

 N/A 35 %

Solids Tolerance

 N/A ± 1 %

Viscosity

 N/A 50 to 500 cps (Brookfield RVT, sp. 3, 100 rpm)

pH

 N/A 7.0 to 9.5

Density

 N/A 8.6 lb/gal

Softening Point

 N/A 200 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

 N/A 47 g/L

Tensile Properties

Elongation

 N/A 1200 %

Tensile Strength

 N/A 1500 psi

100 % Modulus

 N/A 75 psi

200 % Modulus

 N/A 85 psi

300 % Modulus

 N/A 100 psi

Application

N/A 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.

Drying/Curing

N/A 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.