K-FLEX 188

K-FLEX 188 is a highly reactive, aliphatic polyester diol which is recommended for aminoplast or isocyanate crosslinked coatings, inks, sealants, elastomers, and adhesives. K-FLEX 188 is the most versatile polyester diol in the K-FLEX line.

Viscosity @ 25°C10,000 cPs
Hydroxyl Number230
Equivalent Weight, g/eq. (as supplied)244
Application AdvantageAdhesion, Flexibility, Hardness, Light color, Low VOC
Formulation Advantage100% active, High resistivity
Market ApplicationAerospace, Auto OEM, Auto refinish, General industrial, Marine, Plastic
Product GroupPolyester diol

Related Products

  • K-FLEX A307

    Viscosity @ 25°C 5,400 cPs
    Hydroxyl Number 140
    Equivalent Weight, g/eq. (as supplied) 400
    Polyester diol
    Low viscosity, 100% solids. Improves flexibility. Low crosslinker demand. Recommended for isocyanate and aminoplast systems.
    View TDS
  • K-FLEX A308

    Viscosity @ 25°C 1,500 cPs
    Hydroxyl Number 260
    Equivalent Weight, g/eq. (as supplied) 216
    Polyester diol
    Low viscosity, providing good hardness and adhesion while lowering VOCs. Recommended for acrylic/isocyanate and acrylic/melamine systems.
    View TDS
  • K-FLEX 171-90

    Viscosity @ 25°C 3,700 cPs
    Hydroxyl Number 122
    Equivalent Weight, g/eq. (as supplied) 432
    Polyester diol
    Chain extended version of K-FLEX 188 with improved adhesion and flexibility. Low crosslinker demand.
    View TDS
  • K-FLEX 148

    Viscosity @ 25°C 3,750 cPs
    Hydroxyl Number 235
    Equivalent Weight, g/eq. (as supplied) 238
    Polyester diol
    Lower viscosity version of K-FLEX 188. Improves flexibility and gloss. Good flow and leveling. Excellent intercoat adhesion. Recommended for primers.
    View TDS
  • K-FLEX XM-337

    Viscosity @ 25°C 55,000 cPs
    Hydroxyl Number 220
    Equivalent Weight, g/eq. (as supplied) 260
    Polyester diol
    Improves flexibility, impact resistance and chemical resistance. Excellent UV durability. Recommended for urethane and blocked isocyanate systems.
    View TDS
  • K-FLEX XM-332

    Viscosity @ 25°C 400 cPs
    Hydroxyl Number 265
    Equivalent Weight, g/eq. (as supplied) 212
    Polyester diol
    Lowest viscosity polyester diol that produces the softest films. Provides abrasion resistance, scratch resistance and good weatherability.
    View TDS
  • K-POL 8211

    Viscosity @ 25°C 7,200 cPs
    Hydroxyl Number 400
    Equivalent Weight, g/eq. (as supplied) 140
    Polyester diol
    Cost effective diol. Improves hardness and flexibility. Good exterior durability and chemical resistance. Recommended for 2K PU general purpose coatings and elastomers.
    View TDS
Sample Request
Scroll to Top