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.
Phthalo Blue · United States
Phthalo blue green shade grades, beta 15:3 and non-flocculating 15:4, made by Choksi Colours, each matched to the DIC, Clariant, Ciba or BASF standard it replaces.
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
An ink or paint plant that runs a phthalo blue green shade usually approved one multinational grade years ago. Changing supplier means new drawdowns, new press trials and new risk.
Every grade in this range names the standard it replaces. Your lab tests against a known reference, which shortens the approval.
Blue 15:3 HD-801 runs in offset, HD-810 in water based ink and paint, and Blue 15:4 HD-4000s is a low viscosity grade. The pigment team helps choose between them.
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.
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.
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.
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

The beta crystal form of copper phthalocyanine gives a greener blue than the alpha forms 15:0 and 15:1.
When the ink or coating must not flocculate. 15:4 is the flocculation-stabilized beta form.
HD-810, a green shade, high strength grade with good gloss and flow.
Yes. Blue 15:3 RC-7090 is listed for PP, PE and ABS masterbatch at 250°C.
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