Cobalt‑Free High Solids Drier Wrinkle‑Resistant Thick Film Alkyd Film Hardness Promoter
Cobalt‑Free High Solids Drier is cobalt‑free complex drier optimized for high‑solids thick‑film alkyd coatings. Under high‑solids and heavy film‑build conditions, conventional driers easily cause surface over‑curing, wrinkling and insufficient hardness. This product delivers coordinated surface and inner‑layer curing, restrains wrinkling defects and obviously promotes cross‑linking density to boost film hardness. It shall be combined with proper auxiliary driers to perfect overall curing profile
Product Overview
Cobalt‑Free High Solids Drier belongs to cobalt‑free complex primary drier specially tailored for high‑solids thick‑film alkyd applications. High‑solids alkyd systems feature high resin content and thick single‑coat film build. Traditional cobalt‑containing driers tend to trigger fast surface skinning while inner layer cures slowly, resulting in wrinkling phenomenon and unsatisfactory final hardness. This drier adopts special complex catalytic structure to harmonize surface oxidation rate and deep‑layer cross‑linking progress. It suppresses thick‑film wrinkling and accelerates network formation to raise film hardness. As primary drier, it needs to cooperate with matched auxiliary driers for better through‑curing and storage stability. It shows good solubility in hydrocarbon solvents and great compatibility with high‑solids alkyd resins, maintains stable batch‑to‑batch quality.
Key Features
‑ Cobalt‑free complex drier for high‑solids alkyd coating systems ‑ Outstanding wrinkle‑resistant performance under thick‑film high‑build condition ‑ Acts as film hardness promoter to increase cross‑linking density of cured alkyd film ‑ Balances surface drying and deep‑layer curing to avoid uneven curing defects ‑ Excellent compatibility with high‑solids medium‑oil and short‑oil alkyd resins ‑ Good solubility in aliphatic and aromatic hydrocarbon coating solvents ‑ Eco‑friendly cobalt‑free alternative for industrial high‑solids protective coatings ‑ Reliable batch‑to‑batch consistency for mass‑production of high‑solids thick‑film alkyd paints
Technical Specifications
‑ Product Name: Cobalt‑Free High Solids Drier ‑ Active Component: Metal complex ‑ Appearance: Brown‑reddish transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and high‑solids alkyd resins, insoluble in water ‑ Density: 0.93‑0.99 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ High‑solids solvent‑borne thick‑film industrial alkyd coating systems ‑ Heavy‑build protective and equipment finishing alkyd enamels ‑ Short‑oil and medium‑oil high‑solids alkyd formulations vulnerable to wrinkling ‑ Cobalt‑free coating projects requiring improved film hardness ‑ Primary drier component cooperating with auxiliary driers for complete curing system
Usage Recommendation
‑ Typical dosage: 0.22%‑0.65% calculated on total paint weight ‑ Add under low‑speed mixing during pigment letdown stage ‑ Do not add during high‑temperature resin synthesis procedure ‑ Combine with suitable auxiliary driers to optimize through‑curing and anti‑skinning property ‑ Conduct wrinkle resistance and hardness test under actual high‑solids thick‑film condition ‑ Excessive dosage may cause color shift 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 open flame ‑ 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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