Offset · water-based · solvent
Ink grades
Blue 15:3 HD-801 for offset sheet fed, heat set and cold set. HD-810 for water-based inks, HD-B2G for NC, PA and PU solvent inks. Blue 15:4 HD-4000s, low viscosity, no crystallisation. Green 7 HD-G.
Green Pigments · United States
Green pigment grades for inks, paints and plastics: phthalo green 7 and 36 made by Choksi Colours, and TRANSDUR cobalt green for polyolefins.
Samples and data sheets come straight from the team that makes the product.

Product brochure
The brochure sorts every grade by end use and lists the equivalent multinational standard, the system it is meant for and its character: shade direction, strength, gloss, dispersibility, flow, crystallisation and heat.
Offset · water-based · solvent
Blue 15:3 HD-801 for offset sheet fed, heat set and cold set. HD-810 for water-based inks, HD-B2G for NC, PA and PU solvent inks. Blue 15:4 HD-4000s, low viscosity, no crystallisation. Green 7 HD-G.
Paint and coatings · powder
Blue 15:3 HD-810, green shade, high strength and gloss, good flow. Blue 15:4 RC-7101F, non-crystallising, non-flocculating, heat resistant. Green 7 HD-G, general purpose. Green 36 for powder coating.
220°C to 350°C
Alpha blue 15:0 HD-6850P for EVA, rubber, PBT, PA, PS and PC at 220°C. Blue 15:1 RC-2721 at 280°C. Blue 15:3 RC-7090 for PP, PE, ABS masterbatch at 250°C. Green 7 HD-8730K at 280°C, green 36 at 350°C.
Buying it right
Green pigment covers very different chemistry. Phthalo green gives a strong, clean shade for ink and paint. Cobalt green is a mixed metal oxide that stays put in hot plastic and outdoor exposure.
Hongda carries both. Phthalo green 7 for inks, paints and plastics at 280°C, green 36 for powder coating and plastics at 350°C, and cobalt green G-4G to G-6G that resists warpage in polyolefins.
Tell the pigment team the system, the process temperature and the shade direction you need. They name the green pigment grade and send the data sheet.
The partnership
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.
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.
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

Pigment Green 7 is the bluer phthalo green. Pigment Green 36 is the yellower one, and in this range it is the grade rated to 350°C for plastics.
Cobalt green from TRANSDUR. It barely nucleates the polymer, so molded polyolefin parts warp less than with many organic greens.
Yes. Phthalo green 36 is listed for powder coating.
Choksi Colours in India. Hongda imports and distributes it with the Choksi data behind each lot.
Where it ships from
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.
Strategic partners
Write directly to the partner team, or send the short application. It reaches Hongda's partner team by email.
info@hongda-chem.comOr call the group directly: +86 574 87907888