Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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Fast Red FGR

    • Product Name Fast Red FGR
    • Chemical Name (IUPAC) 3-[(4-Amino-2-methoxyphenyl)diazenyl]benzenesulfonic acid
    • CAS No. 51037-30-0
    • Chemical Formula C14H10ClN3O3
    • Form/Physical State Powder
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    969084

    Product Name Fast Red FGR
    Chemical Name 1-(4-Nitrophenylazo)-2-naphthol-3,6-disulfonic acid, disodium salt
    Cas Number 284032-97-7
    Molecular Formula C16H10N3Na2O8S2
    Molecular Weight 497.38 g/mol
    Appearance Red to deep red powder
    Solubility Soluble in water
    Uses Diazonium salt coupler, histochemistry, enzyme substrate
    Absorption Maximum Approx. 500 nm (in aqueous solution)
    Storage Conditions Store at room temperature, protect from light and moisture
    Hazard Statement May cause irritation to eyes, skin, and respiratory tract

    As an accredited Fast Red FGR factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Fast Red FGR is packaged in a sealed 100g amber glass bottle with a red screw cap and hazard labeling for safety.
    Container Loading (20′ FCL) 20′ FCL container typically loads 14-16 metric tons of Fast Red FGR in 25kg bags, securely palletized or shrink-wrapped.
    Shipping Fast Red FGR should be shipped in tightly sealed containers, away from incompatible substances, moisture, and ignition sources. It must be labeled according to hazardous material regulations, handled with appropriate PPE, and transported in compliance with local, national, and international chemical shipping guidelines. Store in a cool, dry, and well-ventilated area.
    Storage Fast Red FGR should be stored in a tightly sealed container, away from light and moisture, in a cool, dry, and well-ventilated area. Keep it separate from incompatible substances, such as strong oxidizers. Ensure that the storage area is clearly labeled and accessible only to trained personnel. Follow all relevant safety and chemical hygiene protocols to prevent contamination and degradation.
    Shelf Life Fast Red FGR typically has a shelf life of 2-3 years when stored in a cool, dry place in tightly sealed containers.
    Free Quote

    Competitive Fast Red FGR prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.

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    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Introducing Fast Red FGR: The Workhorse Pigment for Deep, Lasting Reds

    The Color the Industry Trusts

    Red pigments carry a big load in coatings, plastics, inks, and textiles. Fast Red FGR—often identified by its CI Pigment Red 112—is the pigment many manufacturers choose when they need bright, high-strength reds that stay strong even under heat and light. Our plant has produced Fast Red FGR at large scale for years. Every batch comes out with that signature clarity: orange-red to vivid scarlet, with a clean undertone that doesn’t muddy up like some reds I’ve seen over my decades in color chemistry.

    A Consistent Product, Developed in Real-World Factories

    No one wants surprises in production. Every gram of Fast Red FGR that leaves our facility has passed intense scrutiny. We’ve found that clarity, tinting strength, and particle shape vary if the right synthesis isn’t followed. Years back, even small process hiccups could cause off-shades or muddy dispersions, but investment in modern filtration, heat control, and quality programs fixed that. Our FGR has an oil absorption and density profile that gives easy wetting and dispersion even for high-solids systems. That means coatings and plastics makers see good color yield without long grind times or compatibilizers.

    Heat Stability and Lightfastness Drive Demand

    Fast Red FGR handles higher processing temperatures than many yellow-shade reds or organic alternatives. In plastics, especially polyolefins and PVC, thermal stability makes all the difference. In color masterbatches and rigid PVC, polyamide, or ABS, we see color hold up to extrusion and molding cycles—a property supported by real use testing over the years in major factories. This pigment pushes through above 200°C without browning or fading, which not all reds can claim. Textile dyers and ink makers have seen how poorly stabilized reds fade quickly in sunlight. FGR holds up, and our field customers come back for the same reason: their end-users expect goods to look fresh off the line for as long as possible.

    Purity Means Stronger Color—And Fewer Surprises

    There’s no cutting corners with reds. Trace metals or process residues can dull shade or send batches off-target. We monitor all inputs—coupling agents, acids, naphthols—and batch reactants are filtered to keep iron, calcium, and unwanted byproducts far below visible traces. Finished pigment goes through particle sizing, and our chemists keep D50 and D90 values tight. That means our Fast Red FGR doesn’t clog mills or show lumps during letdown, and it’s much less likely to cause specks in high-gloss paint or injection-molded parts.

    Fast Red FGR in Typical Manufacturing Settings

    Paint shops want reds to cover both deep basecoats and high-gloss decorative products. Formulators see FGR as a backbone pigment. Additives blend in fast, and we’re seeing formulators pair this red with Rutile-based titanium dioxides for smooth, stable color in architectural coatings. We’ve supplied large volume for interior emulsion paints, oil-based enamels, and direct-to-metal (DTM) alkyds, where hiding power and batch-to-batch match matter most. In industrial coatings—piping marking, machinery, and automotive basecoats—demand comes from confidence in both light fastness and chemical resistance, especially when the painted objects face outdoor aging and chemical fumes.

    Plastics processors want everything to run smoothly. Our FGR disperses quickly into polyethylene, polypropylene, ABS, and even styrenics, so compounding lines move at target throughput. No ‘ghosting’ or off-color tails show in final molded goods. As for polyolefin films, FGR maintains its clarity, staying true even under UV exposure. Textiles see good wash, light, and rub fastness, holding color despite exposure to detergents or frequent abrasion. That’s why textile dyers continue to seek out FGR pigments in both bulk continuous dyeing and direct print applications.

    What Sets Fast Red FGR Apart from Other Organic Reds

    Our plant produces other azo pigments, like Fast Red 2B and DPP-based reds, but FGR stands out due to its balanced strength, processability, and weatherability. Fast Red 2B, for instance, may pull to a pinker shade and lacks the same thermal stability; DPP reds (quinacridones) do offer lightfastness, but at a much higher cost and with challenges during milling and stabilization. Fast Red FGR delivers high tinting power—lab trials show it matches or beats most other yellow-shade organic reds in coverage, and often at sharper pricing.

    Supporting Compliance and Environmental Goals

    Tough regulations on heavy metals, formaldehyde, and restricted clay carriers have changed pigment manufacture. We adapted all our Fast Red FGR production years ago to exclude lead, cadmium, and other suspect materials after monitoring changes in European and North American rules. Each batch carries documentation for RoHS and EN71 compliance, and our in-house analysts test pigment against global migration limits for food packaging and toys. Our switch away from residual formaldehyde or halogen-containing additives took technical work, but it means customers clear audits and spot checks without disruption.

    End-Use Experience: Feedback and Real-World Failures

    My team knows where things used to go wrong. Years ago, a batch of FGR made outside controlled pH drifted and produced off-shade masterbatch, wrecking a run of commercial signage films. We now run pH and temperature controls with closed-loop feedback, using in-line sampling and cross-checking shade on every production drum before shipment. Distributors and direct OEMs both notice: color difference ΔE within one batch stays below 0.5—beating many competitor reds that can drift out of tolerance especially in high-beta, heat-aged resins. Our engineering upgrades to filtering and final pigment drying reduced moisture residues, so fewer shipping or application headaches hit the end user.

    Field teams tell us how it really works. Architectural paint shops want batch certificates and shade boards to track their own incoming lots. Plastics molders come back to our sales team not because of price, but because off-shade masterbatch means wasted downtime or scrapped runs. Ink makers want reds that disperse easily and don’t drop out over weeks in the can, so our fine-particle control pays off in longer shelf life and print consistency. We don’t get complacent either—engineering and technical teams at the plant keep running improvement projects as industry requirements evolve.

    Boosting Color Yield for Lower Formula Costs

    Every year, purchasing teams push for stronger color with less cost. Fast Red FGR’s higher tinting strength versus legacy azo reds lets our customers use less pigment to hit required chroma and coverage. I remember early paint shops struggling to hit deep signage or machinery red shades without blowing up on pigment usage or loading times. Since we improved surface treatment and particle stabilization, customers can drop dosage rates by 5–10 percent over many older reds and still get the same deep color without processing headaches. We help our partners run side-by-side letdown trials to get exact color match with the lowest pigment load—critical in paints and plastics where price pressure never lets up.

    Formulators Are Looking Beyond Color

    End-users care about more than shade. In coatings and plastics, physical compatibility—no grit, no seeding, no filter blocking—lags if pigment manufacturers don’t maintain strict particle sizing and keep a tight hold on organics. Our FGR chemistry comes with a record of good rewetting, letting dispersers and bead mills reach full color quicker. In modern water-based systems, dispersibility hits the mark without lumpy residues or expensive wetting aid packages, which customers remind us, keeps batch costs in check and helps meet new VOC and fragrance-reduction targets.

    We’ve built long-term partnerships both with multinational coatings manufacturers and local plastics compounding shops. We sit down to review application results—how often end users report dye migration, color fading, or processing screw fouling on their lines. Real-world application teaches faster and harder lessons than any sales data. Our tech support team frequently visits users’ facilities to check letdown results and particle dispersion, giving honest feedback for further improvement. Continuous feedback from the field, matched with QC in our plant, led us to reformulate and optimize Fast Red FGR for today’s demanding lines.

    Comparison to Other Color Solutions—Reds Are Never One-Size-Fits-All

    A lot of new organic reds have entered the scene—some with striking claims, but often at a higher cost and with uncertain supply. Perinone, DPP, and quinacridone chemistries color strong, but we still see their processability and long-term cost challenged by Fast Red FGR. Customers who try cheaper legacy reds, like Fast Red 2B, soon come back when heat aging and sunlight tests show severe fading or plasticization breakdown.

    Across inks, coatings, and plastics, FGR serves as the backbone for both mass tone and tinting—with a performance-cost balance that stays unmatched among organic pigments. Decades of real-world use, batch records, and continuous interaction with end users back up those claims better than glossy brochures. We guide new users through the comparison of FGR with the full spectrum of alternatives, allowing side-by-side weather and compatibility testing, so they know exactly what they're paying for—and what compromises look like.

    The Logistics—Handling, Health, and Supply

    Storage and handling in a working plant make a difference. Fast Red FGR arrives dry, low-dust, and safe for open-air transfer into mixing hoppers or bead mills. In our experience, the fine but non-flying particle size helps cut dusting in facilities compared to high-dust legacy reds. Safety matters. Our plant follows strict dust and inhalation controls, with material safety teams doing routine air monitoring and health checks. FGR carries low toxicity and no heavy metals or carcinogens—keeping our teams and our customers’ workers safer. Packaging comes in lined fiber drums or bags, sealing out moisture and keeping pigment workable even when incoming conditions get humid.

    We heard from large plastics processors who had trouble with long lead times and inconsistent pigment volumes from overseas. We ramped up production scheduling, so local and regional customers can get short-notice shipments without waiting months. Reliability of supply, with backup lots and batch QC certifications, wins customer trust—no wild price swings, no surprise shortages or shade shifts.

    Supporting Sustainability—Practical Steps, Not Promises

    Pigment manufacturing can generate waste, but we take every reasonable measure to minimize and recycle. Our in-plant teams focus on reducing water and energy use per ton of FGR, recovering solvents, and purifying wash streams for reuse. We work in parallel to phase out unnecessary organics in our pigments and to certify all finished batches against a checklist of restricted substances.

    Automated pH and temperature controls mean less waste pigment and fewer rework cycles. We supply pigment in bulk returnable containers for big users, dropping the need for single-use packaging. As our partners seek global certifications—Blue Angel, Nordic Swan, or EcoLabel—we provide compliance records and formulation data to support their green labeling efforts.

    Problems the Industry Still Faces—and How We Handle Them

    Pigment red isn’t always simple: unpredictable cost swings in raw material markets, contamination risks, and new compliance demands keep us on our toes. Economic shifts can triple the price of specialty chemicals needed for FGR synthesis. Where possible, we qualify alternative suppliers after internal audits of their environmental and quality practices. All our color products go through batch-to-batch lab checks before release to prevent the off-shading or grit that can tank production runs.

    Some users ask about fully lead- and formaldehyde-free pigment lines. Our FGR synthesis doesn’t use lead in any step, and we avoid formaldehyde donors, but some regions still ask for even stricter declarations. Our technical file and declarations stay transparent—if any regulatory limit changes, we update users and collaborate on lab testing and documentation.

    Looking Ahead—Color That Grows with Demands

    We listen to industry experts and trade associations and regularly benchmark our Fast Red FGR against the latest performance standards—weathering, blendability, regulatory compliance. End users push for reds that stand up to harsher process conditions and longer UV exposure. Our labs innovate to tighten particle sizing, drop dust, and improve environmental footprint while preserving color strength.

    Over time, industry keeps finding new uses for Fast Red FGR—beyond the familiar paints, plastics, and inks. Specialty applications in thermal transfer ribbons, heat-resistant foams, and even referee flags show how manufacturers extend the performance boundaries year after year. We keep investing in process upgrades, QA, and customer support, so the pigment you order today works just as well for the projects nobody has thought up yet.

    Conclusion: Trusted by Experience, Proven by Use

    Fast Red FGR isn’t just a pigment on a technical sheet—it’s the product of decades listening to customer problems, tuning plant process, and standing behind every shipment. Competitors may make big claims, but we meet every order with field-tested, real-world reliability across industries. Our experience and genuine feedback from customers drive us to keep Fast Red FGR the “go-to” red for large and small manufacturers alike. If you run high-volume paint shops, plastics compounding plants, or high-speed ink lines, Fast Red FGR brings the right mix of color strength, processing ease, and proven stability that delivers real business results.