High‑Zirconium Co‑Ca‑Zr Drier CAS 136-52-7 Through Drier for Thick Film Alkyd
High‑Zirconium Co‑Ca‑Zr Drier CAS 136‑52‑7 is pre‑mixed multi‑metal drier consisting of cobalt, calcium and high‑content zirconium carboxylates. Cobalt delivers surface oxidative drying, calcium stabilizes gloss and film integrity, high‑level zirconium greatly enhances inner‑layer cross‑linking capacity. It effectively solves typical failure of thick‑film alkyd such as surface dry but soft under‑layer. Widely applied for high build industrial alkyd enamels, protective thick‑film finishes and hea
Product Overview
High‑Zirconium Co‑Ca‑Zr Drier CAS 136‑52‑7 belongs to pre‑formulated multi‑metal carboxylate composite drier for air‑drying alkyd coating systems. Compared with standard Co‑Ca‑Zr drier, this grade adopts higher zirconium loading to prioritize through‑curing performance for heavy film thickness. Cobalt acts as primary surface drier to realize fast surface oxidation cross‑linking. Calcium optimizes gloss retention and suppresses abnormal film brittleness. High‑zirconium component penetrates paint film network and promotes sufficient inner‑layer curing. It overcomes the common issue that thick alkyd film dries on surface while remaining soft underneath. It dissolves completely in aliphatic and aromatic hydrocarbon solvents, shows excellent compatibility with long‑oil and medium‑oil alkyd resins, and keeps stable storage performance and consistent batch‑to‑batch quality.
Key Features
‑ Pre‑blended Co‑Ca‑Zr formula with elevated zirconium content for enhanced through‑curing ‑ Target‑oriented for thick‑film high‑build alkyd coating applications ‑ Effectively eliminates soft inner‑layer defect under heavy film‑build condition ‑ Maintains reasonable surface drying speed together with deep cross‑linking capability ‑ Calcium component ensures good gloss performance and reduces film brittleness risk ‑ Good solubility in mineral spirits, xylene and conventional coating hydrocarbon solvents ‑ Works well for both clear varnish and pigmented thick‑film alkyd systems ‑ Reliable batch‑to‑batch consistency for mass‑production of heavy‑build industrial alkyd paints
Technical Specifications
‑ Product Name: High‑Zirconium Co‑Ca‑Zr Drier ‑ Active Metal: Cobalt, Calcium, High‑content Zirconium ‑ CAS No.: 136‑52‑7 ‑ Appearance: Purple‑reddish transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and alkyd resins, insoluble in water ‑ Density: 0.96‑1.02 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ High‑build thick‑film solvent‑borne industrial alkyd enamels ‑ Heavy‑layer protective alkyd finishing coatings ‑ Long‑oil and medium‑oil alkyd formulations requiring superior through‑curing ‑ Alkyd systems with single‑coat high film‑build requirement ‑ Composite drier solution for thick‑coat alkyd paint formulators
Usage Recommendation
‑ Typical dosage: 0.22%‑0.60% 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 ‑ Anti‑skin agent should be supplemented separately according to paint storage demand ‑ Adjust dosage according to thick‑film through‑curing test, surface‑dry time and mechanical property evaluation ‑ Excessive dosage may cause film brittleness; 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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