High‑Activity Polymeric Cobalt Drier 5% Co 2‑EHA‑Free Low‑Dosage REACH Alkyd
High‑Activity Polymeric Cobalt Drier 5% Co is high‑activity polymeric cobalt drier without 2‑ethylhexanoate. With 5% cobalt content, it achieves effective curing effect under lower adding dosage and avoids regulatory risks brought by 2‑EHA components. It meets REACH compliance requirements for EU export. This primary drier needs to be matched with zirconium, calcium and other auxiliary driers to balance surface drying, through‑curing and anti‑skinning performance. It is widely used for high‑soli
Product Overview
High‑Activity Polymeric Cobalt Drier 5% Co belongs to high‑activity 2‑EHA‑free polymeric cobalt primary drier oriented to REACH‑compliant alkyd coating production. Traditional cobalt octoate contains 2‑ethylhexanoate, which is subject to strict EU REACH and CLP regulations. This product adopts special polymeric cobalt complex ligand structure, excludes 2‑EHA ingredients, and raises cobalt metal content up to 5% to realize high‑activity low‑dosage characteristics. As primary drier, it accelerates surface oxidative cross‑linking reaction. It must cooperate with corresponding auxiliary driers to optimize inner‑layer curing, film hardness and closed‑can anti‑skinning property. It dissolves excellently in hydrocarbon solvents and shows great compatibility with long‑oil, medium‑oil and short‑oil alkyd resins, maintains stable batch‑to‑batch quality.
Key Features
‑ 2‑EHA‑free high‑activity polymeric cobalt drier with 5% cobalt metal content ‑ Low‑dosage usage, brings remarkable drying efficiency with small addition amount ‑ Fully REACH‑compliant, removes 2‑ethylhexanoate‑related regulatory obstacles for EU export ‑ Powerful catalytic surface‑drying capacity for various solvent‑borne alkyd resin systems ‑ Good solubility in aliphatic and aromatic coating hydrocarbon solvents ‑ Can be compounded with Zr, Ca auxiliary driers to form balanced complete drier system ‑ Suitable for high‑solids industrial alkyd as well as decorative alkyd coating formulations ‑ Reliable batch‑to‑batch consistency for mass‑production of REACH‑compliant alkyd paints
Technical Specifications
‑ Product Name: High‑Activity Polymeric Cobalt Drier 5% Co ‑ Active Component: Polymeric cobalt complex ‑ Cobalt Content: 5% min ‑ Appearance: Blue‑violet transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and alkyd resins, insoluble in water ‑ Density: 0.95‑1.01 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ REACH‑compliant solvent‑borne short‑oil, medium‑oil, long‑oil alkyd coatings ‑ High‑solids industrial protective alkyd enamels and equipment finishing paints ‑ Decorative architectural alkyd paint formulations pursuing low‑dosage drier solution ‑ Coating products exporting to EU market with 2‑EHA restriction requirements ‑ Primary drier component cooperating with Zr, Ca auxiliary driers for complete curing system
Usage Recommendation
‑ Typical dosage: 0.08%‑0.35% calculated on total paint weight ‑ Add under low‑speed mixing during pigment letdown stage ‑ Do not add during high‑temperature resin synthesis procedure ‑ Must be used together with zirconium and calcium auxiliary driers to improve through‑curing performance ‑ Anti‑skin agent addition is suggested to mitigate closed‑can skinning risk ‑ High activity means strict dosage control; excessive addition will cause severe skinning and yellowing. Complete full‑set laboratory 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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Jishengya Technology
Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.
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