Tyzor® 212

Tyzor® 212 by Dorf Ketal is Zirconium chelate with approximately 52% active ingredient in 1-propanol solution. Is an organometallic catalyst. It is not affected by freezing and thawing. It is compatible with water, offers low color generation and works well over a wide pH range. It reacts with water by hydrolysis to form a reactive hydroxy zirconium chelate that is stable in water for extended periods. The original or hydrated chelate bonds with organic -OH or -COOH groups to form strong gels by cross-linking many polymeric materials and carbohydrates such as cellulose, starch and guar. It reacts similarly as an adhesion promoter on -OH functionalized surfaces. Improves film strength, adhesion promotion and rheology control. Tyzor® 212 cross-links polymers and binders in solvent-borne and water-borne coatings and printing inks. It can also be used for surface modifications of pigments.