Calcium Drier

Calcium Drier is a metal-based drying agent primarily composed of calcium salts of fatty acids (commonly calcium octoate or calcium linoleate), widely used as a siccative in paints, varnishes, inks, and coatings. It functions as a catalyst to accelerate the oxidative cross-linking and polymerization of drying oils, leading to faster drying times and improved film hardness and durability. Calcium Driers are valued for their good compatibility with other driers, low toxicity, and efficient catalytic activity at low concentrations. They are commonly used alone or in combination with other metal driers such as cobalt or manganese driers for optimized drying performance.  

Cobalt Octoate

Cobalt Octoate is a liquid metal drying agent solution consisting of 10% cobalt octoate dissolved in an organic solvent carrier (typically mineral spirits or similar hydrocarbon solvent). It functions as a highly efficient catalyst to accelerate the oxidative curing and drying of alkyd resins, oils, and varnishes in coatings and paints. By promoting cross-linking and polymerization of unsaturated fatty acids in drying oils upon exposure to oxygen, it significantly reduces drying time and enhances film hardness, gloss, and durability. Cobalt Octoate 10% is widely used in industrial and decorative coatings, inks, and adhesives, valued for its strong catalytic activity even at low concentrations.