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K-KAT® 4205 is a zirconium chelate catalyst that provides extended pot life and selectivity to NCO/OH reactions for reduced gassing in 2K PU systems. It is efficient for ambient and low temperature cure coatings.

Functions: Catalyst

Chemical Family: Zirconium Compounds

Catalyst Type: Homogeneous Catalyst

Reaction Phase: Liquid

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Reaction Phase
CASE Ingredients Functions
Industrial Additives Functions

Features & Benefits

Labeling Claims
Advantages
  • Fast tack free time
  • Excellent viscosity stability/pot life
  • Effective at low metal concentrations
  • Effective with a variety of isocyanates and polyols

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Applications
  • 2-component urethane coatings for:
  • Automotive topcoats
  • High performance maintenance coatings
  • Aerospace coatings
  • Coatings for structural plastics
Incorporation

May be added, as supplied, to the polyol portion of the coating.

Properties

Physical Form
Soluble in
Aromatics, Aliphatics and Glycol ether
Partially Soluble in
Esters and Alcohols

Storage & Handling

Shelf Life
18 months
Storage/Shelf Life
  • K-KAT 4205 is classified as a flammable liquid.
  • Safe handling of this product should include the use of safety glasses and gloves.
  • Avoid breathing vapors - use with adequate ventilation.
  • To prevent possible discoloration, product should be stored in lined or glass containers away from sunlight and excessive heat.
  • Avoid contact with metal.
  • 18 months from the date of manufacture, when stored at ambient conditions in the original container.