Wetting and dispersing · 60xx series
Dispersants
Polymers and PU block copolymers with pigment-affinic groups, 30 to 100% solids. Grades for TiO2 and fillers, organic pigments and carbon black, from economical to high-grade tiers.
Performance Additives · Coating Additives
Coating additives thatfix flow, foam and wetting.
Chemtech dispersants, leveling agents, defoamers, rheology modifiers, wetting agents and film modifiers for waterborne, solvent and UV systems, each grade cross referenced to the BYK code it replaces.
6 familiesdispersant to film modifier
100+ gradesBYK cross-referenced
ISO 9001 · 14001certified group
30+ countriesserved since 1992
Product detail
Six coating additive families, one selection guide.
Chemtech (科美特) is the coating additive brand of Hongda Group and Shaoxing Haicheng Chemical. Every grade lists appearance, active or solids content, solvent, chemistry, the systems it fits (waterborne, solvent, UV) and the equivalent BYK code where one exists.
Brochure PDF PDF · 9.1 MBSurface control · 10xx and 30xx
Leveling and defoaming
Modified polysiloxanes and acrylate copolymers with stated silicone content and reactive groups; non-silicone and silicone defoamers from 3 to 100% active. For PU, PE and epoxy bases and topcoats.
50xx · 70xx · A10 to A110
Rheology, wetting and film modifiers
Polyamide, polyurea and wax dispersions with anti-settling and anti-sagging dosages, wetting agents down to 21.5 mN/m, plus sulfonic acid and amine driers, a conductive agent and a reactive silicone for PU and amino systems.
Where it goes
Where these coating additives are used.
- Solvent-based wood coatings, PU and PE base and top, with a full selection guide
- Automotive OEM and refinish paint, industrial baking and plastic coatings
- Architectural and floor paint, interior and exterior, waterborne systems
- Machine colorant pastes and UV inks with dispersants and defoamers
01What are paint additives?
The small percentage of a formulation that decides how the paint behaves. Pigment stays dispersed, the film levels out, foam breaks, the coating does not sag on a vertical wall. Dosage is usually under 2%, and the difference between a good and a bad batch often sits there.
02What are some examples of additives used in paint?
Wetting and dispersing agents for TiO2, organic pigment and carbon black. Polysiloxane leveling agents. Silicone and non silicone defoamers. Polyamide, polyurea and wax rheology additives for anti sagging. Driers for baking finishes. Our 60xx, 10xx, 30xx, 50xx and 70xx series cover those jobs.
03What are dispersing agents used for in paints?
They keep pigment particles apart after the mill. The molecule anchors on the pigment surface and the rest of the chain holds the particles from flocculating, so you get color strength, gloss and stability in the can instead of settling and float.
04What is the difference between a wetting agent and a dispersing agent?
The wetting agent lowers surface tension so the liquid reaches the pigment surface and displaces air. The dispersant keeps the particles apart once they are wet. Many grades do both, and our card names which side each one leans to, with the static surface tension figure down to 21.5 mN/m.
05Do paint additives work?
They do the job they are dosed for, and nothing else. A defoamer will not fix a bad resin choice and a leveling agent will not save a wrong solvent balance. Send your system, your problem and the grade you use today, and the additives team names the equivalent and the dosage to trial.
Strategic partners
Ready to represent Hongda in your market?
Write directly to the partner team, or send the short application. It reaches Hongda's partner team by email.
Textile Chemistrydyes@hongda-chem.com
Pigments & Colorantspigment@hongda-chem.com
Performance Additiveschemcolor@hongda-chem.com
Functional Chemicalspharma@hongda-chem.com
Or call the group directly: +86 574 87907888