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.
Chemtech Paint Additive · United States
Paint additive, for flow, foam and wetting control.
Chemtech paint additive grades for waterborne, solvent and UV systems, with the BYK equivalent where one exists.
Samples and data sheets come straight from the team that makes the product.
6 familiesdispersant to film modifier
100+ gradesBYK cross-referenced
ISO 9001 · 14001certified group
30+ countriesserved since 1992
Product brochure
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.
Surface 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.
Buying it right
Switching a paint additive without reformulating.
A paint additive is usually dosed under 2% of the formula, yet it decides whether the film levels, the foam breaks and the pigment stays dispersed. Changing supplier feels risky for that reason.
Chemtech lists more than 100 grades in six families, with the BYK equivalent named where one exists. The lab starts from a known reference instead of a blank page.
Each grade states active content, solvent, chemistry and the systems it fits. Send your current additive and the problem you see, and the additives team proposes the equivalent and a dosage to trial.
The partnership
What a Hongda partnership gives you.
Supply
You buy at origin, in the quantities a distributor needs to stay competitive in its market. Volume pricing, consolidated shipments and production planned around your forecast give you the economics to defend margin against any local reseller.
Product
Seven registered brands, from Dragon Dyes to Chemtech, all backed by Hongda's in-house R&D teams. Dyes, pigments, additives and functional chemicals come from the same group, so you can widen your catalogue while keeping a single supplier.
Support
Samples, datasheets and technical answers come straight from the team that makes the product. Formulation advice, matching against your current reference and follow-up after delivery are part of the partnership, included from the first order.
Experience
Documentation, logistics and compliance are routine here after three decades of cross-border trade. Hongda exports to more than 30 countries and works with over 500 distributors worldwide, so the paperwork your market requires has most likely been solved here before.
Questions
What buyers ask before the first order.
01Which paint additive families does Chemtech cover?
Dispersants, leveling agents, defoamers, rheology modifiers, wetting agents and film modifiers, in the 60xx, 10xx, 30xx, 50xx and 70xx series.
02Does Chemtech make paint additives for waterborne systems?
Yes. Grades are marked for waterborne, solvent and UV systems, including architectural and floor paint.
03Who makes Chemtech additives?
Chemtech is the coating additive brand of Hongda Group and Shaoxing Haicheng Chemical, with R&D teams set up with Chinese universities.
04How low does the Chemtech wetting range go in surface tension?
The wetting agents reach a static surface tension of 21.5 mN/m.
Where it ships from
Made in Ningbo, shipped to the United States.
Hongda ships from Ningbo, China, to distributors in more than 30 countries, North America included. Samples, data sheets and documents for each order come from the team in Ningbo.
- Office
- 11th Floor, Office Park Building, 535 Qingshuiqiao Road, Ningbo Hi-Tech Park, Ningbo, Zhejiang Province 315040, China
- Plant
- 365 Beihai Road, Ningbo Petrochemical Economic and Technological Development Zone, Ningbo, Zhejiang Province, China
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 Chemistry
Pigments & Colorants
Performance Additives
Functional Chemicals
info@hongda-chem.comOr call the group directly: +86 574 87907888