K-Kat 5218 Aluminum chelate complex King Industries Catalyst / Accelerator >> Organometallic Polyurethane >> 2 Components Amines and organometallic catalysts are commonly used as accelerators in the polyol/isocyanate reaction to produce polyurethanes. When formulating a polyurethane coating, it has been found that both performance and properties can be affected by the choice of catalyst. The current K-KAT catalyst product line shown (Table 1) is based on organometallic chemistry. These products present an alternative to conventional tin catalysts and can provide unique variations in cure response, storage stability and contributions to film performance. unique non-tin catalysts. K-KAT 5218 is an effective catalyst for both baked and ambient cured 2K urethane systems offering: Synergy with pot life extenders such as 2, 4 - Pentanedione Excellent exterior durability Aluminum Chelate Complex 1.0 - 2.0% - on total resin solids. Recommended for bake and ambient cure. Aluminum chelate complex. Used as an effective non-tin catalyst for baked and ambient cured 2K urethane systems. Provides synergy with pot life extenders such as 2,4-pentanedione and very good exterior durability. <br> Use level: 1.0-2.0% on total resin solids.