A soft, NMP-free, aliphatic, polycarbonate-based, polyurethane dispersion.

Suggested Uses: L-3121 was designed primarily for use on flexible substrates as a coating, saturant or impregnant.

Characteristics:
  • Maximum hydrolytic stability and oxidation resistance
  • Outstanding toughness and abrasion resistance
  • Can be crosslinked to enhance performance
  • Dilution and clean-up with ordinary tap water
  • Contains dipropylene glycol dimethyl ether (DMM) co-solvent
Unit of Measure

Physical Properties

Solids

N/A 35 %

Solids Tolerance

N/A ± 1 %

Viscosity

N/A 50 to 500 cps

pH

N/A 7.5 to 10.0

Density

N/A 8.8 lb/gal

Softening Point

N/A 240 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

N/A 124 g/L

Sward Hardness

N/A 10

Tensile Properties

Elongation

N/A 480 %

Tensile Strength

N/A >7300 psi

100 % Modulus

N/A 875 psi

200 % Modulus

N/A 1450 psi

300 % Modulus

N/A 2950 psi

Note

N/A Tested at 20 Inches/Minute

Application

N/A L-3121 can be used as a sole vehicle or blended with acrylic emulsions for spray or rotogravure applications. It may be thickened with associative thickeners for knife-over-roll or similar methods.

Drying

N/A L-3121 may 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.