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A soft, high solids, co-solvent free, aromatic, polyether-based, polyurethane dispersion.

Suggested Uses: L-2063 is a highly versatile coatings and adhesive polymer for applications where lightfastness is not critical. Its dry surface and high melting point properties prevent blocking problems. Excellent for use as a solvent (MEK) reactivate-able adhesive for bonding and laminating applications. Compatible with acrylic and other aqueous polymers for optimum cost/performance balance.

Characteristics:
  • Medium soft, tough, flexible film.
  • Unusually dry surface for non-blocking applications.
  • High melting for thermal stability.
  • Can be crosslinked with melamines, polyaziridines or carbodiimides for true thermoset character and increased adhesion.
  • Excellent hydrolytic stability.
Unit of Measure

Physical Properties

Solids

 N/A 50 %

Solids Tolerance

 N/A ± 1.5 %

Viscosity

 N/A 100 to 1000 cps (sp. #3 @ 100; 25EC)

pH

 N/A 7.0 to 9.5

Density

 N/A 8.8 lb/gal

Softening Point

 N/A 310 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

 N/A 11 g/L

Sward Hardness

 N/A 10

Tensile Properties

Elongation

 N/A 550 %

Tensile Strength

 N/A >3000 psi

100 % Modulus

 N/A 610 psi

200 % Modulus

 N/A 905 psi

300 % Modulus

 N/A 1280 psi

Note

 N/A Tested at 20 inches/minute

Application

N/A L-2063 may be applied by spray or pad bath. The rheology of the product may be modified with associative thickeners for other application methods.

Curing

N/A L-2063 can be air dried, if desired, depending on film thickness. Typical drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties.