English
Español
tiếng việt
русский
Highly selective cobalt-based catalyst for controlled oxidative crosslinking.
Low volatility and excellent thermal stability up to 180 °C.
Compatible with alkyd, polyester, and acrylic resin systems.
Enables fast through-dry without surface tackiness in ambient-cure coatings.
Non-hazardous formulation compliant with REACH Annex XIV exemptions.
Industrial maintenance coatings for metal substrates.
Wood finishing varnishes requiring low-odor, rapid air-dry performance.
Railway and automotive OEM touch-up enamels.
General-purpose decorative alkyd paints for architectural use.
| Chemical Type | Cobalt carboxylate complex (non-ionic) |
| Product Form | Liquid solution in aromatic hydrocarbon solvent |
| Appearance | Clear, reddish-brown liquid |
| Cobalt Content (wt %) | 6.0 ± 0.3 % |
| Density at 20 °C | 0.92–0.95 g/cm³ |
| Flash Point (PMCC) | 42–46 °C |
| Primary Applications | Oxidative drying of alkyd and modified alkyd resins |
| Key Features | Low migration, high catalytic efficiency, minimal film discoloration |
Q1: What is the primary function of Borchi Kat 0243 in coating and ink formulations?
A: Borchi Kat 0243 is a cobalt-free, heavy-metal-free oxidation catalyst designed to promote efficient air-drying of alkyd- and oil-based systems. It accelerates surface drying and through-cure by enhancing autoxidative crosslinking without relying on traditional cobalt driers.
Q2: Is Borchi Kat 0243 compatible with water-reducible or hybrid resin systems?
A: Yes — Borchi Kat 0243 demonstrates good compatibility with water-reducible alkyds, acrylic-alkyd hybrids, and certain solvent-borne polyesters. Its formulation supports stable dispersion in both polar and moderately non-polar media, though compatibility should be verified under actual processing conditions.
Q3: How does Borchi Kat 0243 compare to conventional cobalt driers in terms of drying profile?
A: Borchi Kat 0243 typically delivers a more balanced drying profile — improving through-dry without excessive surface skinning. Unlike cobalt, it avoids premature film formation that can hinder oxygen diffusion, supporting more uniform crosslinking throughout the film thickness.
Q4: What is the recommended dosage range for optimal performance?
A: Dosage depends on resin type, vehicle composition, and desired drying speed, but Borchi Kat 0243 is generally used at low concentrations — typically ranging from 0.1% to 2% by weight relative to total non-volatile content. Start with lower levels and adjust based on cure evaluation and film properties.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
