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A branched, aliphatic, co-solvent free, polyether-based, polyurethane dispersion.

Suggested Uses: L-2357 was designed for a variety of coating and adhesive applications where the chemical- and thermal-resistance of a crosslinked system are required, but the use of a multiple component system is neither feasible nor desirable.

Characteristics:
  • Contains no co-solvent
  • Medium hard, tough film
  • Polymer branching improves film resistance properties
  • Dries to clear, glossy, non-discoloring film
  • Dilution and cleanup of wet material with water
Unit of Measure

Physical Properties

Solids

 N/A 35 %

Solids Tolerance

 N/A ± 1 %

Viscosity

 N/A 50 to 150 cps

pH

 N/A 9.0 to 10.0

Density

 N/A 8.6 lb/gal

Softening Point

 N/A 325 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

 N/A 16 g/L

Tensile Properties

Elongation

 N/A 380 %

Tensile Strength

 N/A >4500 psi

100 % Modulus

 N/A 1500 psi

200 % Modulus

 N/A 2000 psi

Note

 N/A Tested at 20 Inches/Minute

Application

N/A L-2357 can be used as supplied or blended with acrylic emulsions for spray or rotogravure applications. It can be thickened with associative thickeners for knife-over-roll or similar methods.

Drying

N/A L-2357 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.