Urethane Catalysts > K-KAT
Tin Free Catalysts for Urethanes
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Catalysts for 2K PU Systems
Product |
Type |
Level % as Supplied on TRS
|
System Type |
Attributes |
TDS |
Sample |
K-KAT XC-B221 |
Bismuth Carboxylate |
0.03 - 2.0 |
SB |
Comparable to DBTDL. Very effective in 2K and blocked isocyanate coatings. |
|
 |
K-KAT 348 |
Bismuth Carboxylate |
0.03 - 1.0 |
SB |
Similar to DBTDL. Very effective in 2K and blocked isocyanate coatings. |
|
 |
K-KAT 4205 |
Zirconium |
1.0 - 2.0 |
SB |
Selective Catalyst (less gassing). Good pot life. Recommended for 2K PU coatings. |
 |
 |
K-KAT 5218 |
Aluminum |
1.0 - 2.0 |
SB |
Excellent 2K urethane pot life when used with 2,4 pentanedione |
 |
 |
K-KAT XK-635 |
Zinc Complex |
0.1 - 0.5 (2K PU)
0.5 - 1.0 (blocked NCO)
|
SB, SL |
Effective replacement for tin catalysts, with good balance of cure/pot life in 2K PU. Effective with MEKO blocked isocyanate. Good hydrolytic stability. |
 |
|
K-KAT XK-651 |
Bismuth Carboxylate |
0.1 - 0.5% (2K PU)
1.0 - 2.5% (blocked NCO)
|
SB |
Versatile bismuth carboxylate catalyst designed for blocked isocyanate, two component urethanes and one and two component silane terminated coatings. Improved hydrolytic stability. |
 |
 |
K-KAT XK-614 |
Zinc Complex |
0.25 - 1.0 |
SB, WB |
Most versatile. Effective in 2K WB and blocked isocyanate systems. Great hydrolytic stability. For use in polyol component. |
 |
 |
K-KAT 6212 |
Zirconium |
0.3 - 2.0 |
SB, WB |
Selective catalyst for SB and WB 2K PU coatings. Sensitive to moisture, include in isocyanate component or as 3rd component. |
 |
 |
K-KAT XK-661 |
Metal Complex |
0.25 - 1.0 |
SB, WB |
A novel non-tin catalyst recommended for 2K solvent based and 2K waterborne polyurethanes, as well as, for 1K blocked isocyanate systems. |
|
|
K-KAT XK-604 |
Mixed Carboxylate |
0.1 - 1.0 |
SB |
Very good gel profile in ambient cure 2K urethane elastomer systems. Alternative to mercury. |
 |
 |
K-KAT XK-617 |
Mixed Carboxylate |
0.1 - 1.0 |
SB |
Excellent gel profile. Slightly less selective than XK-604. |
 |
 |
K-KAT XK-618 |
Mixed Carboxylate |
0.1 - 1.0 |
SB |
Best gel profile compared to mercury, with induction period followed by snap cure. Best compatibility in 1,4-butanediol. |
 |
 |
Blocked Isocyanate Systems
Catalysts for Organosilane Systems