Pigment Green 7 (PG7) — Phthalocyanine Green for Coatings, Plastics & Printing Inks | Honor Pigments

Technical Information

What Is PG7

Pigment Green 7 (CAS 1328-53-6, CI 74260) is a chlorinated copper phthalocyanine — the most widely consumed organic green pigment in industrial manufacturing. The molecule takes the copper phthalocyanine chromophore and replaces up to fifteen peripheral hydrogen atoms with chlorine, pulling the absorption band from blue into a bright, clean green with exceptional tinctorial power. This fully substituted aromatic ring system is what gives PG7 its commercial backbone: it resists light degradation at the highest level achievable by organic chemistry, withstands processing temperatures that destroy most competing greens, and remains chemically inert across the solvent, aqueous, and UV-cured binder families that drive modern coatings and plastics. For the formulator, it is the rare pigment that checks heat, light, migration, and regulatory boxes simultaneously.

Why Choose PIGMENT GREEN 7 / HP GREEN 5164

HP GREEN 5164 is positioned for the formulator whose production economics depend on first-pass dispersion. In masterbatch compounding and solvent-based ink milling, a pigment that wets slowly burns machine time and raises cost per kilogram of finished colorant. This grade addresses that directly: its particle size distribution and surface treatment are tuned to nonpolar media — polyolefin carriers, hydrocarbon solvents, alkyd and acrylic binder systems — so it reaches full color development in fewer mill passes than a generic PG7 powder. The shade sits at a neutral green point that blends efficiently in both yellowish and bluish directions, giving the color matcher a wide working range without switching grades. For polyolefin masterbatch producers, the controlled pH and low electrolyte content translate into reduced nucleation during cooling — meaning flat parts, not warped ones. When the application demands 300°C processing stability alongside warp-critical dimensional control, HP GREEN 5164 is the disciplined choice.

Key Features

• Full-tone light fastness that eliminates outdoor fading risk: achieving the highest Blue Wool Scale rating means coated metal panels, garden furniture, and exterior PVC profiles hold their original green through years of UV and moisture cycling without the surface chalking or color washout that triggers end-user warranty claims and brand damage.
• Heat endurance that unlocks engineering resin markets: stable through 300°C processing, this pigment survives the melt temperatures of nylon, polycarbonate, and ABS without decomposing or drifting off-shade — letting compounders serve automotive under-hood and electrical enclosure applications where inorganic greens are too dull and conventional organics fail thermally.
• High tinting efficiency lowers in-can formulation cost: delivering roughly five to ten times the color strength of chromium oxide green on an equal-weight basis, it hits target opacity and shade depth at significantly lower pigment loading, freeing raw material budget for other formulation components without sacrificing hiding power.
• Low-warpage design for semicrystalline polyolefins: the controlled surface chemistry minimizes the nucleation anisotropy that causes differential shrinkage in injection-molded PP and PE — molders get flat, dimensionally stable parts without adding nucleating agents or adjusting cycle parameters to compensate for pigment-induced warping.
• Measured consistency with full batch traceability: every production lot ships with spectrophotometric proof — ΔE ≤ 0.5 against the master standard under D65, backed by three-year record retention — so the formulator receives a documented quality datum, not a marketing claim, and can audit batch history against their own incoming inspection results.

Recommended Applications

Primary: Polyolefin masterbatch (PE, PP film, injection molding) where low warpage and non-migration are non-negotiable; solvent-based and UV-curable printing inks — offset, flexo, gravure — demanding rapid wet-out and consistent rheology batch over batch; industrial OEM and architectural coatings requiring maximum exterior durability with heavy-metal-free formulation.

Secondary: Engineering thermoplastics (PA 6/66, PC, ABS) processed at elevated melt temperatures; powder coatings where cure-cycle heat stability and clean green shade are both required; water-based decorative paints targeting regulatory-compliant, bright-green tint bases for point-of-sale tinting systems.

Shade selection note: HP GREEN 5164’s neutral-mid green forms an efficient blending center — in practice, most target shades can be reached through letdown ratios with organic yellows (for spring-grass and lime directions) or phthalo blues (for teal and forest directions) without switching to a different PG7 grade. For brand-color matches that fall outside this blending window, contact technical support with a spectral target.

Technical Data

Frequently Asked Questions About PG7

PG7 or chromium oxide green for industrial coatings — which delivers better value?

For any coating curing or operating below 300°C, Pigment Green 7 (CAS 1328-53-6) wins on value per kilogram of finished paint. The arithmetic is simple: PG7 has roughly five to ten times the tinting power of chromium oxide green (PG17), so the formulator uses far less pigment to reach the same shade depth, directly lowering the raw material cost per liter dispensed. Beyond cost, the color is brighter and cleaner — PG17’s olive cast limits its usefulness in tinting systems and decorative lines. Regulatory pressure adds another dimension: chromium-based pigments carry heavy-metal compliance burdens under REACH and EPA frameworks that phthalocyanine chemistry simply avoids. The one application where chromium oxide still belongs is ceramics and refractory coatings above 1000°C — HP GREEN 5164 is not designed for that thermal extreme, and for everything below it, it is the better engineering decision.

Can PG7 handle nylon and polycarbonate processing temperatures?

It can — and the grade matters. Pigment Green 7 (CI 74260) owes its thermal resilience to the fully chlorinated phthalocyanine ring: the same chlorine substitution that creates the green chromophore also stabilizes the molecule against thermal decomposition. HP GREEN 5164 holds shade and color strength through 300°C for the dwell times typical of injection molding and extrusion, covering the processing window for polyamide 6 and 66, polycarbonate, and ABS without generating the brownish degradation byproducts that plague less stable organic greens. For compounders running unusually long residence times or pushing barrel temperatures beyond standard profiles, a pre-production trial is prudent — but for the vast majority of engineering resin applications, this grade exits the mold with the green intact.

Does the same PG7 grade work across solvent ink and water-based paint?

HP GREEN 5164 is surface-optimized for nonpolar systems — solvent-based inks, polyolefin masterbatch carriers, hydrocarbon and alkyd vehicles — where its particle size distribution and dispersant compatibility deliver the fast wet-out that high-speed milling demands. The underlying phthalocyanine chemistry is chemically compatible with water-based coatings and PG7 carries no heavy-metal or VOC concerns that would limit aqueous use. However, formulators moving this grade into a water-based paint should verify dispersion behavior: the surface treatment tuned for nonpolar media may require a dispersing agent adjustment or slightly extended milling to reach full color development in an aqueous environment. The same CI 74260 backbone underpins both use cases; the surface engineering is what differs. Contact technical support with your formulation parameters for a dispersant recommendation.

How is PG7 batch consistency verified before industrial delivery?

Color drift between batches is the fastest way to lose a production customer — one off-shade masterbatch lot and thousands of molded components go to regrind or scrap. HP GREEN 5164 addresses this with measurement, not promises. Every production lot undergoes spectrophotometric testing against the master standard under D65 illuminant; the release threshold is ΔE ≤ 0.5. Shade match, color strength, Hegman-gauge dispersibility, and particle size distribution are all recorded on the Certificate of Analysis that accompanies every shipment. Raw phthalocyanine crude is screened at incoming inspection before it ever enters production, and all batch records — three years’ worth — remain available for traceability audits. For high-volume consumers of Pigment Green 7 (CAS 1328-53-6), pre-shipment samples can be dispatched for customer-side spectrophotometric approval before the full batch ships.

Packaging formats and minimum order quantity for PG7?

HP GREEN 5164 / Pigment Green 7 ships as a free-flowing powder, with 25KG paper bags as the standard format. Alternate packaging — 20KG and 10KG bags — is available for production lines with smaller weigh-up batches or manual handling workflows. For first-time evaluation and trial formulations, sample quantities can be arranged through the sales team; include your target application and processing conditions for a tailored technical recommendation with the sample. Standard payment terms are T/T 30% advance with 70% against shipping documents. Logistics span sea freight (FCL and LCL consolidation), air freight for urgent production needs, and rail freight to Central Asia and Europe. Every shipment, regardless of order size, includes the batch-specific COA, TDS, and MSDS for CI 74260.