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An NMP-free, APEO-free, silicone-modified, polyester-based, water-borne polyurethane dispersion.

Suggested Uses: L-2857 was designed primarily for topcoat applications where slip and abrasion resistance properties are required. L-2857 contains a non-fugitive silicone component that provides low surface tension characteristics on flexible and rigid substrates including plastics, metals and textiles.

Characteristics:
  • May be formulated into low surface tension coatings
  • Excellent abrasion resistance
  • Non-fugitive silicone component
  • Crosslinkable for improved adhesion and performance
  • Contains dipropylene glycol dimethyl ether co-solvent
Unit of Measure

Physical Properties

Solids

 N/A 35 %

Solids Tolerance

 N/A ± 1 %
Viscosity1 N/A 50 to 500 cps

pH

 N/A 7.0 to 9.5

Density

 N/A 8.7 lb/gal

Softening Point

 N/A 305 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

 N/A 73 g/L

Sward Hardness

 N/A 35

Tensile Properties

Elongation

 N/A 300 %

Tensile Strength

 N/A >6375 psi

100 % Modulus

 N/A 3180 psi

200 % Modulus

 N/A 4610 psi

Note

 N/A Tested at 20 inches/minute

Application

N/A L-2857 may be used as a sole vehicle or blended with acrylic emulsions for spray or rotogravure applications. Rheology modifications can be made with associative thickeners for alternative application methods.

Curing

N/A L-2857 can be air dried, if desired, depending on film thickness. Typical oven drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties.

  • 1 Provisional specification