Zinc Octoate 12% Zn CAS 136-53-8 High‑Zinc Auxiliary Drier for Alkyd Coating
Zinc Octoate 12% Zn CAS 136‑53‑8 is high‑strength liquid zinc 2‑ethylhexanoate auxiliary drier containing 12% zinc metal content. As high‑zinc grade alkyd co‑drier, it provides prominent anti‑skinning effect to restrain premature oxidation and skin crust inside paint cans. Working together with cobalt and manganese primary driers, it promotes uniform oxidative cross‑linking, enhances paint film hardness, gloss and leveling, and reduces curing wrinkling defects. High metal content lowers required
Product Overview
Zinc Octoate 12% Zn CAS 136‑53‑8 belongs to octoate‑series metal carboxylate auxiliary drier for air‑drying alkyd systems. It cannot achieve drying effect independently and must be compounded with cobalt‑manganese primary drier combinations. Thanks to its high zinc concentration, it realizes excellent anti‑skinning performance with reduced adding amount. It suppresses surface skin formation during sealed storage without negatively affecting surface drying after coating application. It optimizes cross‑linking homogeneity of cured film and minimizes wrinkling risk. It dissolves well in aliphatic and aromatic hydrocarbon solvents, maintains good compatibility with long‑oil and medium‑oil alkyd resins, and keeps stable catalytic activity in industrial batch production and finished paint storage.
Key Features
‑ 12% high zinc content, effective anti‑skinning performance with low dosage ‑ Strong inhibition on can‑skin formation, greatly prolong paint shelf‑life ‑ Excellent synergistic matching property with cobalt and manganese primary driers ‑ Improves paint film hardness, surface gloss and leveling performance ‑ Reduces film wrinkling tendency in oxidative curing process ‑ Good solubility in mineral spirits, xylene and conventional coating solvents ‑ Fine compatibility with long‑oil and medium‑oil solvent‑borne alkyd resins ‑ Stable batch‑to‑batch quality for large‑volume industrial alkyd paint manufacturing
Technical Specifications
‑ Product Name: Zinc Octoate (Zinc 2‑Ethylhexanoate) ‑ Zinc Content: 12% Zn ‑ CAS No.: 136‑53‑8 ‑ Appearance: Pale yellow transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and alkyd resins ‑ Density: 0.99‑1.05 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ General long‑oil and medium‑oil solvent‑borne alkyd coatings ‑ Industrial alkyd primers, heavy‑duty protective enamels ‑ Alkyd paint formulas requiring strong anti‑skinning storage performance ‑ Pigmented alkyd varnish prone to can‑skin defect ‑ Composite drier system cooperating with cobalt‑manganese primary driers
Usage Recommendation
‑ Typical dosage: 0.05%‑0.25% calculated on total paint weight (as metal zinc) ‑ Premix fully with cobalt, manganese and other drier additives before adding into coating formula ‑ Do not add during high‑temperature resin synthesis procedure ‑ Standalone use is ineffective, cobalt‑manganese primary drier combination is mandatory ‑ Adjust dosage according to anti‑skinning storage test and drying performance evaluation ‑ 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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