Co‑Ca‑Li Fast‑Dry Combination Drier CAS 136-52-7 for Low‑Temperature Cure Alkyd
Co‑Ca‑Li Fast‑Dry Combination Drier CAS 136‑52‑7 is pre‑mixed composite drier composed of cobalt, calcium and lithium carboxylates. Cobalt undertakes main oxidative surface‑drying function, calcium improves gloss and curing stability, lithium enhances catalytic activity under low‑temperature environment to shorten surface drying time in cold construction scenarios. This combination relieves slow‑drying defects of alkyd paints at low temperature, simplifies formulation work. Widely used for indoo
Product Overview
Co‑Ca‑Li Fast‑Dry Combination Drier CAS 136‑52‑7 belongs to pre‑formulated multi‑metal carboxylate composite drier for air‑drying alkyd coating systems. Ordinary drier blends show obvious curing retardation when ambient temperature drops. This formula introduces lithium component with excellent low‑temperature catalytic activity. Cobalt acts as primary drier to trigger oxidative cross‑linking reaction. Calcium optimizes gloss retention and inhibits abnormal film brittleness. Lithium accelerates surface drying reaction under cold conditions. It dissolves well in aliphatic and aromatic hydrocarbon solvents, has good compatibility with long‑oil and medium‑oil alkyd resins, and maintains stable storage performance and consistent batch‑to‑batch quality.
Key Features
‑ Pre‑blended Co‑Ca‑Li three‑metal formula for fast low‑temperature curing ‑ Lithium additive effectively accelerates surface drying under cold ambient conditions ‑ Mitigates slow‑drying failure of alkyd coatings in low‑temperature construction ‑ Cobalt provides main oxidative curing, calcium stabilizes gloss and film property ‑ Balanced drying behavior without severe negative impact on final film flexibility ‑ Good solubility in mineral spirits, xylene and conventional coating hydrocarbon solvents ‑ Suitable for decorative and industrial alkyd paints applied in variable‑temperature environment ‑ Reliable batch‑to‑batch consistency for mass‑production of cold‑cure alkyd coating products
Technical Specifications
‑ Product Name: Co‑Ca‑Li Fast‑Dry Combination Drier ‑ Active Metal: Cobalt, Calcium, Lithium ‑ CAS No.: 136‑52‑7 ‑ Appearance: Purple‑reddish transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and 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
‑ Solvent‑borne alkyd coatings for low‑temperature indoor and outdoor construction ‑ Architectural decorative alkyd paints used in cold‑season application ‑ General‑purpose industrial air‑drying alkyd enamels suffering slow‑drying at low temperature ‑ Long‑oil and medium‑oil alkyd varnish and pigmented coating systems ‑ Composite drier solution for formulators requiring fast cold‑cure performance
Usage Recommendation
‑ Typical dosage: 0.20%‑0.58% calculated on total paint weight based on total metal content ‑ Add under low‑speed mixing during pigment letdown stage ‑ Do not add during high‑temperature resin synthesis procedure ‑ Higher dosage improves low‑temperature drying speed but may increase skinning risk ‑ Perform drying test under target low‑temperature condition and anti‑skinning verification ‑ 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 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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