🎨 Coatings & Paints

Complete Additive Supply for Coating Formulators

Topfine Chemical supplies the two workhorses of modern paint and coating production: oxidative driers (cobalt, manganese, zirconium, cerium and lead naphthenate / octoate systems) and photoinitiators for UV-curable formulations. Both lines carry batch-specific COA and MSDS, and third-party pre-shipment inspection (SGS / Intertek) is available on request.

Driers for Alkyd & Oil-Based Paints

For solvent-borne alkyd, epoxy ester and oil paints, the primary drier is Cobalt Octoate (8% metal in 200# solvent oil), typically dosed at 0.1–0.5% on resin solids. Bi- and tri-metal composite systems improve through-dry: zirconium and cerium octoates are common secondary driers, and Manganese Octoate is the standard cobalt-free surface-direction starting point. Lead naphthenate remains the classic through-dry accelerator for industrial enamels and anti-corrosion paints; lead-free alternatives are available for modern, regulated formulas.

UV-Curable Coatings

For UV systems, selection depends on the cure wavelength and the end use. 1173 (HMPP) is the general-purpose cost-effective workhorse at 3–5% loading; 184 (HCPK) is valued for low-yellowing clear coats; 907 and ITX/DETX thioxanthones cover pigment-loaded systems; TPO and TPO-L are the LED-cure deep-cure champions with excellent photo-bleaching behavior.

Typical Packaging & Logistics

Photoinitiators ship in 20 kg cartons, 25 kg pails, 200 kg drums or 1000 kg IBCs; driers in 25 kg / 200 kg drums with inner coating. Both classes are stored in a cool, dry, dark and ventilated warehouse — our Shanghai, Qingdao, Tianjin, Guangzhou and Nanjing warehouses support FOB, CIF and DDP delivery to EU, US, SEA and other markets.

Need a formulation recommendation? Send us your resin system and target cure speed — our export team answers within 12 working hours.