company tower banner
King Industries Company Logo
K-KAT® XK-635 is a Zinc based catalyst offering an excellent balance of cure and performance improvements. K-KAT® XK-635 is effective for ambient and force dry cure of 2K PU and has excellent performance with MEKO-blocked Isocyanates.

Functions: Catalyst

Chemical Family: Zinc & Zinc Compounds

Catalyst Type: Homogeneous Catalyst

Reaction Phase: Liquid

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Reaction Phase
CASE Ingredients Functions
Industrial Additives Functions

Features & Benefits

Labeling Claims
Advantages
  • Good pot life in 2K PU systems
  • Good cure time characteristics
  • Non-yellowing
  • Excellent gloss retention

Applications & Uses

Use Level
0.1 - 0.5% (as supplied on total resin solids for 2-component polyurethane systems), 0.5 - 1% (as supplied on total resin solids for blocked isocyanate systems)
Applications

K-KAT XK-635 can be used in ambient cured or force dried 2-component solvent based polyurethane systems. It can also be used in thermal cured 1-component blocked isocyanate systems.

Incorporation

K-KAT XK-635 can be added directly to the polyol component in 2K systems or to blocked isocyanate systems at anytime during the manufacturing process.

Properties

Physical Form
Appearance
Light yellow liquid
Soluble in
Ketones, Esters and Aromatic hydrocarbons
Insoluble in
Water
Typical Properties
ValueUnitsTest Method / Conditions
% Active100%
Specific Gravity (25°C)1.14
Weight per Gallon (25°C)9.5lbs

Storage & Handling

Shelf Life
24 months
Storage/Shelf Life
  • Product should be stored in a cool, dry environment away from sunlight and excessive heat.
  • 24 months from the date of manufacture, when stored at ambient conditions in the original container.