Low‑Cobalt Waterborne Drier for Styrene‑Acrylic Modified Alkyd System
Low‑Cobalt Waterborne Drier is hydrophilic‑modified low‑cobalt composite drier specially developed for styrene‑acrylic modified alkyd resin systems. Styrene‑acrylic modification changes resin polarity and curing sensitivity. Traditional high‑cobalt driers tend to cause obvious yellowing and unstable curing performance. This product adopts low‑cobalt matched multi‑metal formula. It achieves fast surface cure together with sufficient deep‑film through‑drying, lowers yellowing tendency of cured fil
Product Overview
Low‑Cobalt Waterborne Drier belongs to hydrophilic‑modified low‑cobalt multi‑metal composite drier for oxidative‑cure styrene‑acrylic modified alkyd systems. The introduction of styrene‑acrylic segments brings better hardness and chemical resistance to alkyd resin, meanwhile raising strict requirements for drier compatibility. Conventional high‑cobalt waterborne driers easily trigger severe film yellowing, gloss fluctuation and uneven curing in styrene‑acrylic hybrid systems. This product adopts rationally proportioned low‑cobalt formula compounded with other auxiliary metal components. Cobalt provides necessary surface‑driving catalytic activity, while synergistic metals boost through‑drying performance and suppress yellowing defects. Hydrophilic modification technology guarantees stable dispersion in aqueous resin environment and avoids hydrolysis‑caused deactivation. It shows excellent compatibility with various grades of styrene‑acrylic modified alkyd resins and maintains stable batch‑to‑batch quality.
Key Features
‑ Low‑cobalt multi‑metal composite drier tailored for styrene‑acrylic modified alkyd oxidative systems ‑ Balanced surface‑drying and through‑drying performance without high cobalt loading ‑ Effectively reduces yellowing risk compared with conventional high‑cobalt drier solutions ‑ Stable water dispersibility, will not break emulsion stability of styrene‑acrylic‑alkyd hybrid resin ‑ Improves cured film gloss retention, hardness and water‑resistant performance ‑ Reduces pigment‑induced drier adsorption loss, stabilizes drying effect in pigment‑loaded paints ‑ Suitable for decorative architectural and industrial water‑borne styrene‑acrylic modified alkyd coatings ‑ Reliable batch‑to‑batch consistency for mass‑production of low‑yellowing hybrid waterborne paints
Technical Specifications
‑ Product Name: Low‑Cobalt Waterborne Drier ‑ Active Component: Hydrophilic‑modified low‑cobalt multi‑metal carboxylate composite ‑ Appearance: Reddish‑brown transparent liquid ‑ Solubility: Water‑dispersible, miscible with styrene‑acrylic modified alkyd resin ‑ Density: 0.98‑1.06 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.3%
Application Scenarios
‑ Water‑borne styrene‑acrylic modified alkyd decorative paints and clear varnishes ‑ Industrial air‑dry water‑based styrene‑acrylic‑alkyd hybrid protective topcoats ‑ Oxidative‑cure styrene‑acrylic modified alkyd formulations troubled by cobalt‑caused yellowing ‑ Hybrid resin coating projects requiring balanced curing speed and low‑yellowing property ‑ Special composite drier for styrene‑acrylic modified alkyd oxidative water resin systems
Usage Recommendation
‑ Typical dosage: 0.20%‑0.60% calculated on total paint weight ‑ Add slowly under low‑speed stirring during paint letdown stage, avoid high‑shear violent agitation ‑ Do not add during high‑temperature resin synthesis procedure ‑ Complete pre‑formula test covering drying speed, through‑dry performance, anti‑skinning, gloss and color stability ‑ Excessive dosage will increase skinning and yellowing risk; strictly control addition amount ‑ 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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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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