K-FLEX® Resin Modifiers

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.

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.

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.

K-FLEX 188

  • Viscosity @ 25°C 10,000 cPs
  • Hydroxyl Number 230
  • Equivalent Weight, g/eq. (as supplied) 244
  • Polyester diol Most versatile polyester diol. Improves flexibility while maintaining hardness. Also improves salt spray, humidity resistance and exterior durability. Highly recommended for 2k PU.

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.

K-FLEX UD-320

  • Viscosity @ 25°C 7,000 cPs
  • Hydroxyl Number 300
  • % Active 82
  • Urethane diol Incorporation of urethane into HMMM type systems without use of NCO. Increases application solids and hardness. Improves chemical resistance, exterior durability and hydrolytic stability.

K-FLEX UD-320-100

  • Viscosity @ 50°C 7,000 cPs
  • Hydroxyl Number 350
  • % Active 100
  • Urethane diol Recommended for prepolymer synthesis and 100% solids WB/SB melamine crosslinked systems or 2K PU. Used for preparation of polyester polyurethanes or alkyd polyurethanes. Provides hardness and exterior durability

K-FLEX UD-350W

  • Viscosity @ 25°C 4,000 cPs
  • % Active 88
  • Hydroxyl Number 300
  • Urethane diol High solids, low viscosity aqueous urethane diol resin that increases hardness and provides improved resistance properties in WB/WR 2-component polyurethane

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.

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.

K-FLEX XM-359

  • Viscosity @ 25°C 9,800 cPs
  • Hydroxyl Number 230
  • Equivalent Weight, g/eq. (as supplied) 244
  • Polyester diol Longer pot life version of K-FLEX 188. Improves flexibility while maintaining hardness. Also improves salt spray, humidity resistance and exterior durability. Highly recommended for 2k PU.

K-FLEX XM-B301

  • Viscosity @ 25°C 1,100 cPs
  • Hydroxyl Number 190
  • Application Advantage Adhesion
  • Acetoacetate reactive diluent Primarily recommended for use in epoxy/polyamide primers, but can also be used in systems crosslinked with amino resins or polyisocyanates.