Polymeric Cobalt Drier 4% Co 2‑EHA‑Free REACH‑Compliant Low‑Label Alkyd
Polymeric Cobalt Drier 4% Co is polymeric‑structured cobalt primary drier free from 2‑ethylhexanoate. Traditional cobalt 2‑ethylhexanoate faces strict REACH regulatory restrictions. This product adopts special polymeric cobalt ligand structure to retain effective catalytic drying activity while removing 2‑EHA ingredients, achieving low‑label regulatory classification. It needs to be compounded with auxiliary driers such as zirconium and calcium to optimize through‑curing, hardness and anti‑skinn
Product Overview
Polymeric Cobalt Drier 4% Co belongs to 2‑EHA‑free polymeric cobalt primary drier developed for regulatory‑compliant alkyd coating production. Conventional cobalt octoate relies on 2‑ethylhexanoate ligand, which brings strict REACH CLP labelling obligations. This drier uses optimized polymeric cobalt complex structure, maintains cobalt‑based oxidative catalysis capacity without 2‑EHA content, realizes low‑label compliance status. As primary drier, it mainly accelerates surface oxidation cross‑linking, and must cooperate with matched auxiliary driers to improve inner‑layer curing and storage stability. It dissolves well in aliphatic and aromatic hydrocarbon solvents, features excellent compatibility with long‑oil and medium‑oil alkyd resins, keeps stable batch‑to‑batch quality.
Key Features
‑ 2‑EHA‑free polymeric cobalt drier with 4% cobalt metal content ‑ REACH‑compliant formulation, achieves low‑label classification for easier regulatory handling ‑ Retains reliable primary surface‑drying catalytic activity of cobalt‑based driers ‑ Eliminates 2‑ethylhexanoate related regulatory risks for coating formulators ‑ Good miscibility with general coating hydrocarbon solvents and alkyd binders ‑ Works with Zr, Ca auxiliary driers to build complete balanced curing system ‑ Suitable for decorative and industrial solvent‑borne alkyd requiring EU regulatory compliance ‑ Reliable batch‑to‑batch consistency for mass‑production of REACH‑compliant alkyd paints
Technical Specifications
‑ Product Name: Polymeric Cobalt Drier 4% Co ‑ Active Component: Polymeric cobalt complex ‑ Cobalt Content: 4% min ‑ Appearance: Blue‑violet transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and alkyd resins, insoluble in water ‑ Density: 0.94‑1.00 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ REACH‑compliant solvent‑borne long‑oil & medium‑oil alkyd decorative paints ‑ General industrial air‑drying alkyd enamels and protective top‑coats ‑ Alkyd coating projects restricting 2‑EHA raw‑material ingredients ‑ Formulations pursuing low‑label regulatory status for EU market export ‑ Primary drier component cooperating with Zr, Ca auxiliary driers for full curing system
Usage Recommendation
‑ Typical dosage: 0.10%‑0.40% calculated on total paint weight ‑ Add under low‑speed mixing during pigment letdown stage ‑ Do not add during high‑temperature resin synthesis procedure ‑ Must combine with matched zirconium, calcium auxiliary driers to improve through‑curing performance ‑ Anti‑skin agent is recommended to extend closed‑can storage life ‑ Excessive dosage will increase skinning and yellowing risk; 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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