Cobalt‑Manganese Primary Drier 6% Co 6% Mn CAS 136-52-7 for Alkyd Paint and Ink
Cobalt‑Manganese Primary Drier 6%Co 6%Mn CAS 136‑52‑7 is ready‑to‑use primary drier blend containing 6% cobalt and 6% manganese metal carboxylates. Cobalt provides rapid surface oxidative drying, manganese assists catalytic curing and improves through‑drying performance. This dual‑metal primary drier is widely adopted as core curing component for solvent‑borne alkyd paints and printing inks. It can be combined with calcium, zirconium, zinc or barium auxiliary driers to complete full drier formul
Product Overview
Cobalt‑Manganese Primary Drier 6%Co 6%Mn CAS 136‑52‑7 belongs to pre‑formulated dual‑metal carboxylate primary drier for air‑drying alkyd paint and printing‑ink systems. Cobalt acts as dominant surface drier to trigger peroxide‑free oxidative cross‑linking on coating and ink film surface. Manganese cooperates with cobalt to enhance catalytic activity, accelerate overall curing progress and improve inner‑layer drying performance. This product only serves as primary drier, auxiliary driers such as calcium, zirconium or zinc shall be matched according to actual formulation demand. It dissolves completely in aliphatic and aromatic hydrocarbon solvents, shows good compatibility with long‑oil, medium‑oil alkyd resins and alkyd ink binders, maintains stable storage performance and consistent batch‑to‑batch quality.
Key Features
‑ Pre‑blended 6% cobalt & 6% manganese high‑activity primary drier formula ‑ Fast oxidative surface drying performance for alkyd paint and printing ink ‑ Manganese synergistically boosts catalytic activity and improves curing efficiency ‑ Works as core primary drier, match with auxiliary driers for complete drier system ‑ Good solubility in mineral spirits, xylene and common ink‑grade hydrocarbon solvents ‑ Wide compatibility with alkyd resins for architectural paint, industrial paint and offset ink ‑ Convenient direct dosing, no separate weighing for cobalt and manganese salts ‑ Reliable batch‑to‑batch consistency for mass‑production of alkyd coatings and printing inks
Technical Specifications
‑ Product Name: Cobalt‑Manganese Primary Drier ‑ Active Metal: Cobalt 6% min, Manganese 6% min ‑ CAS No.: 136‑52‑7 ‑ Appearance: Dark purple‑reddish transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents, alkyd resins and ink binders, insoluble in water ‑ Density: 0.95‑1.01 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ Solvent‑borne air‑drying alkyd decorative and industrial paints ‑ Alkyd‑based offset printing ink and solvent‑based printing ink systems ‑ Long‑oil and medium‑oil alkyd varnish and pigmented coating formulations ‑ Paint & ink formulation requiring high‑activity primary oxidative drier ‑ Primary drier component cooperating with Ca, Zr, Zn auxiliary driers
Usage Recommendation
‑ Typical dosage: 0.10%‑0.40% calculated on total paint or ink weight based on total metal content ‑ Add under low‑speed mixing during pigment letdown stage ‑ Do not add during high‑temperature resin synthesis procedure ‑ Must cooperate with suitable auxiliary driers to achieve full surface & through‑curing ‑ Anti‑skin agent should be supplemented separately according to storage requirement ‑ Excessive dosage will cause severe surface skinning risk; adjust dosage by drying test ‑ Complete full‑set laboratory compatibility assessment before mass‑scale production
Package & Storage
‑ Standard package: 25kg / 200kg metal drum ‑ Store in cool, dry and well‑ventilated warehouse, keep away from heat source and direct sunlight ‑ Tightly seal container after opening to prevent solvent volatilization and performance deterioration ‑ Shelf life: 12 months under proper storage conditions
Safety Notes
‑ Combustible liquid, keep away from all ignition sources. ‑ Avoid skin contact and eye splash. Wear chemical‑resistant gloves and safety goggles during handling. ‑ Avoid inhalation of vapor and mist, ensure effective local ventilation. ‑ Refer to SDS for full guidance on handling, transportation and emergency disposal.
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