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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.

 

Calcium Octoate

Calcium Octoate 10% is an aqueous solution containing 10% calcium octoate, a calcium salt of 2-ethylhexanoic acid (octanoic acid). It is a white to pale yellow liquid, soluble in water, known primarily as a metal carboxylate used as a drying agent and corrosion inhibitor. It functions as a calcium-based drier in coatings, paints, varnishes, and printing inks to accelerate the curing process by catalyzing the oxidation and polymerization of drying oils. Due to its stability and efficacy at low concentrations, it is widely preferred as a non-toxic alternative to traditional lead or cobalt-based driers.

Cobalt Drier

Cobalt Drier is a metal-based drying agent primarily composed of cobalt salts (commonly cobalt octoate or cobalt naphthenate). It is widely used as a catalyst to accelerate the drying (oxidative curing) of oils, alkyd resins, and varnishes in coatings and paints. This drier promotes polymerization and cross-linking of unsaturated fatty acids in drying oils upon exposure to air, significantly reducing drying times and improving film hardness and durability. Cobalt driers are essential additives in industrial, decorative, and automotive coatings due to their effectiveness at low concentrations and compatibility with various resin systems.

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.