Classification of commonly used water-based coating additives

When it comes to water-based coating additives everyone thinks of brand series such as TEGO, BYK, GAS, EFKA, Koning, Haichuan and Deqian. Commonly used water-based coating additives include: wetting agents, leveling agents, dispersants, rheology additives, defoaming agents, film-forming additives, etc.

From the physical and chemical nature of coatings, coating additives can be divided into There are several categories: solvent-based coating additives, water-based coating additives and powder coating additives. But a more practical method is to classify additives according to their function, performance, and ingredients. Water-based coating additives are divided into the following categories according to their functions.

Leveling agent: contains wetting and leveling agents and surface tension reduction agent, smooth leveling agent, silicone leveling agent, acrylic leveling agent, polyether silicone leveling agent.

Wetting agent: including substrate (substrate) wetting agent Wetting agent for pigments and fillers, anti-foaming base material wetting agent, non-ionic wetting agent.

Dispersants: including wetting and dispersing agents and pigment dispersion carriers, controlled flocculation wetting and dispersing agents, Deflocculation wetting and dispersing agent;

Rheological additives: including thickeners, decomposers, Construction performance additives and flow and leveling agents, cellulose thickeners, alkali swelling thickeners, polyurethane associative thickeners are divided into Newtonian behavioral thickeners, pseudoplastic associative thickeners, etc. according to their characteristics.

Defoaming agents: including defoaming agents, foam inhibitors, foam breakers Foaming agents, etc., water-based silicone defoaming agent, mineral oil defoaming agent, fluorosilicone defoaming agent, silicone defoaming agent, silicone-free defoaming agent, polymeric defoaming agent, etc.

Film forming aids: plasticizers, polymerizers, co-solvents , co-solvent.

Anti-corrosion and anti-fungal agents: including preservatives in the tank, paint film anti- Mildew and algae control agents.

Paint film matting agent: matting powder, wax emulsion, wax powder, Silica matting powder.

Wax powder and wax emulsion: natural wax, synthetic wax, vegetable wax , animal wax, polymer wax, carnauba wax, beeswax, paraffin, ozokerite, etc.

PH adjusters: including PH adjusters with multi-functional effects.

Cross-linking curing agent: polyisocyanate cross-linking agent, aziridine Compound cross-linking agent, epoxy cross-linking agent, silicone cross-linking agent, polycarbodiimide cross-linking agent, metal ion cross-linking agent, oxidative cross-linking agent, amine compound cross-linking epoxy emulsion, melamine resin Cross-linking agent, modified isocyanate cross-linking agent.

Corrosion inhibitors and corrosion inhibitors: anti-rust agents in tanks, steel Anti-flash rust agent, inorganic corrosion inhibitor, organic corrosion inhibitor, mixed corrosion inhibitor.

Dryers, anti-scaling agents and catalysts.

Anti-agents and light stabilizers.

Special effect additives: including slip, wear resistance, scratch resistance , additives and hydrophobic agents with functions such as hardening, softness, anti-adhesion, hydrophobicity, anti-graffiti, improved adhesion, whitening, etc.

Water-based coating aid AgentsSome agents have multiple functions at the same time. For example, wetting agents have a defoaming effect, leveling has a wetting effect, wax powder has a matting effect, etc. In the future, the development of coating additives will still be aimed at high efficiency, long-term effect, multi-purpose, environmental protection and safety. In particular, water-based coating additives are mainly green and environmentally friendly. Only when they are VOC-free and APEO-free can water-based coatings truly become green coatings.