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K-KAT® Tin-free Catalyst

K-KAT XC-B221

  • Metal Type Bismuth carboxylate
  • % Active 20
  • Market Application 2K PU
  • Catalyst (tin-free) Designed for 2K and 1K blocked NCO urethane coatings. It provides similar properties to standard tin catalysts without the environmental drawbacks.

K-KAT 6212

  • Metal Type Zirconium
  • % Active 2
  • Market Application 2K PU
  • Catalyst (tin-free) A selective catalyst for solventborne and waterborne 2K PU coatings as well as for adhesives, RIM and resin synthesis

K-KAT XK-661

  • Metal Type Zinc complex
  • % Active 80
  • Market Application 1K moisture cure PU
  • Catalyst (tin-free) Excellent hydrolytic stability. Recommended for 2K PU coatings and 1K moisture cure PU adhesives.

K-KAT 348

  • Metal Type Bismuth carboxylate
  • % Active 25
  • Market Application Resin synthesis
  • Catalyst (tin-free) Efficient alternative to DBTDL in 2K and 1K PU systems. A non-persistent catalyst that is effective for resin synthesis. Similar properties to DBTDL without environmental drawbacks.

K-KAT 4205

  • Metal Type Zirconium chelate
  • Market Application 2K PU
  • Application Advantage Fast tack free time
  • Catalyst (tin-free) Provides extended pot life and selectivity to NCO/OH reactions for reduced gassing in 2K PU systems.

K-KAT 5218

  • Metal Type Aluminum chelate
  • % Active 65
  • Market Application 2K PU
  • Catalyst (tin-free) Provides fast dry time and increased pot life when used in combination with 2,4 pentanedione. Recommended for 2K PU, pultrusion and RIM applications.

K-KAT 670

  • Metal Type Zinc complex
  • % Active 100
  • Market Application Polysiloxane
  • Catalyst (tin-free) Recommended for polysiloxane and STP 1K moisture cure adhesives, sealants, and coatings. Excellent cure response in both methoxy and ethoxy silane systems.

K-KAT XK-604

  • Metal Type Mixed carboxylate
  • % Active 18.5
  • Market Application Elastomers
  • Catalyst (tin-free) Mercury alternative catalyst for production of urethane cast elastomers. Good workability and efficient snap cure profile. Good compatibility with 1,4-butanediol

K-KAT XK-614

  • Metal Type Zinc-amine complex
  • % Active 100
  • Market Application Foam
  • Catalyst (tin-free) Recommended for ambient cure and force dry 2K SB and WB PU coatings. Has excellent stability in HFO-Blown PU foams. Can also be used in 1K moisture cure PU adhesives and coatings.

K-KAT XK-618

  • Metal Type Mixed carboxylate
  • % Active 2.1
  • Market Application Elastomers
  • Catalyst (tin-free) Alternative to mercury and tin catalysts in urethane cast elastomers. Excellent compatibility with 1,4-BDO and recommended in aliphatic systems.

K-KAT XK-635

  • Metal Type Zinc complex
  • Market Application 1K blocked NCO
  • Application Advantage Back end cure
  • Catalyst (tin-free) Balance of cure and performance advantages. Effective for ambient and force dry cure of 2K PU. Excellent performance with MEKO-blocked Isocyanates.

K-KAT XK-651

  • Metal Type Bismuth carboxylate
  • Market Application 2K PU
  • % Active 25
  • Catalyst (tin-free) High active, versatile, designed for 2K PU, HFO blown foam and silane terminated coatings. Improved hydrolytic stability compared to traditional Bi carboxylates.

K-KAT XK-672

  • Metal Type Mixed carboxylate
  • Market Application 1K blocked NCO
  • Application Advantage FDA approvable
  • Catalyst (tin-free) Effective catalyst for production of urethanes. Meets requirements of FDA 21 CFR 175.300. Recommended for 1K blocked NCO PU systems for coil coatings.

K-KAT XK-648

  • Metal Type Zinc complex
  • Market Application Polysiloxane
  • Application Advantage Non-yellowing
  • Catalyst (tin-free) Recommended for catalysis of silane terminated polymers, especially pigmented adhesives and coatings. Also effective for polyurea coatings with aromatic diamine curatives.

K-KAT 682LV

  • Metal Type Bismuth-amine complex
  • % Active 95
  • Application Advantage Hydrolytic stability
  • Catalyst (tin-free) Balance of high efficiency and hydrolytic stability due to metal-amine synergy. Great compatibility with HFO-blown PU foam. Efficient in low temperature cure PU systems.
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