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HS Code |
206821 |
| Product Name | Pigment Yellow GR-WOP |
| Color Index | PY 13 |
| Chemical Class | Monoazo |
| Appearance | Bright yellow powder |
| Shade | Greenish yellow |
| Molecular Formula | C18H14N6O8S2Na2 |
| Oil Absorption | 40-50 g/100g |
| Heat Resistance | Up to 180°C |
| Light Fastness | 5-6 (on a scale of 1-8) |
| Water Solubility | Insoluble |
| Specific Gravity | 1.4-1.6 |
| Ph Value | 6.5-7.5 (aqueous slurry) |
| Bulking Value | 3.5 L/kg |
| Application | Plastics, inks, coatings |
As an accredited Pigment Yellow GR-WOP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for Pigment Yellow GR-WOP is a 25 kg net weight fiber drum with inner polyethylene lining, sealed and clearly labeled. |
| Shipping | Pigment Yellow GR-WOP is typically shipped in tightly sealed, moisture-resistant bags or fiber drums, each weighing 25 kg. Packaging ensures safety and prevents contamination during transit. The chemical is transported by road, sea, or air, with clear hazard labelling and documentation, complying with standard chemical shipping regulations. |
| Storage | Pigment Yellow GR-WOP should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Avoid exposure to moisture and incompatible materials such as strong oxidizers. Ensure containers are labeled clearly and protected from physical damage. Practice good hygiene and use appropriate personal protective equipment when handling. |
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Color Strength: Pigment Yellow GR-WOP with high color strength is used in automotive coatings, where it delivers vibrant yellow shades and excellent hiding power. Lightfastness: Pigment Yellow GR-WOP featuring superior lightfastness is used in outdoor plastics, where it ensures color durability under prolonged sunlight exposure. Purity 98%: Pigment Yellow GR-WOP at 98% purity is used in printing inks, where it provides consistent color tone and minimizes impurities in final prints. Particle Size 0.3 µm: Pigment Yellow GR-WOP with a particle size of 0.3 µm is used in water-based paints, where it achieves smooth texture and high dispersion stability. Thermal Stability 200°C: Pigment Yellow GR-WOP with thermal stability up to 200°C is used in polymer compounding, where it resists discoloration during high-temperature processing. Oil Absorption 40 g/100g: Pigment Yellow GR-WOP with oil absorption of 40 g/100g is used in offset inks, where it ensures optimal ink rheology and printability. Chemical Resistance: Pigment Yellow GR-WOP offering excellent chemical resistance is used in industrial coatings, where it maintains color integrity in harsh chemical environments. Low Volatile Content: Pigment Yellow GR-WOP with low volatile content is used in eco-friendly paints, where it minimizes VOC emissions and supports compliance with environmental standards. Dispersion Ability: Pigment Yellow GR-WOP with excellent dispersion ability is used in textile printing, where it enhances print clarity and color uniformity on fabrics. Weather Fastness: Pigment Yellow GR-WOP exhibiting high weather fastness is used in architectural coatings, where it sustains color stability against rain and UV degradation. |
Competitive Pigment Yellow GR-WOP prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
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Pigment Yellow GR-WOP stands out in a landscape of options because its value stretches far past its hue. Decades of manufacturing have shaped our understanding of what works and what fails when facing high-volume production and unpredictable conditions. Our experience tells us that consistent results hold more worth than the grandest marketing claims, and that’s where this pigment makes its mark.
Every pigment boasts a shade card and a list of technical data. But in the real world, what matters most is whether the pigment performs batch after batch, rain or shine. Yellow GR-WOP holds up against other yellow pigments because it walks the line between bright, strong color and resilience out in the field. It doesn’t fade under light or break down in the heat. That combination doesn’t happen by accident.
Our process for producing Pigment Yellow GR-WOP comes from years of adjusting, re-testing, and timing every stage just right. The raw materials start with high standards. Particle size matters in getting dispersion right — we monitor to cut down on filter clogging and flocculation later on. We keep impurities in check because off-smells and unexpected brown tinges cause more complaints than any single difference in shade.
It’s easy to promote a pigment on the glamour of its shade. But if the product flakes, clumps, or never seems to match last month’s color, that beauty fades fast. We stick to specifications we know deliver in real factories: strong tint strength, low oil absorption, and particle size carefully controlled. In our labs, we run every lot through grind checks and wetting trials before it leaves our door. This reduces wasted time and labor for our customers — one less problem for a paint or plastic plant to solve.
The solid content of GR-WOP measures out high enough to keep it from breaking down in waterborne or solventborne applications. Dispersibility matters. We’re after the kind of fine powder that runs through high-speed mixers without turning gummy or lumpy. That’s not just the result of machines; it comes from controlled drying and delicate balance in formulation. Molders, coating formulators, and printers tell us again and again: ease of processing saves costly downtime more than any other factor.
Since the first batches rolled out of our reactors, GR-WOP has been most widely used in plastics, coatings, and inks. Polyolefin manufacturers call on it because of its resistance to migration. The pigment stays in place and doesn’t bleed even under tough extruding conditions. Paint companies point to its durable color in both interior and exterior applications — a coat of paint laced with GR-WOP rarely needs early rework due to fading, even under strong sunlight.
We’ve seen customers put GR-WOP through outdoor exposure trials, accelerated aging, and chemical splash tests. The pigment keeps its character without shifting to brown or washing out to pale. Compared to other yellow pigments, especially those with more organic composition, this pigment holds better under heat and UV. Printers favor it for resistance to solvents and because yellow lines stay crisp and separate from adjacent colors without bleeding.
For every segment — paints, plastics, inks — the push for lower environmental impact shapes decisions. GR-WOP fits in with eco-friendly resin systems and still hangs on to its vibrant color. It meets limits for heavy metals and unsafe aromatic amines, so regulation-driven customers have fewer headaches during audits. Beyond compliance, this cleaner profile cuts surprises during customer QC checks or when entering new geographic markets.
Many of us have dealt with the chaos that comes from switching pigment sources. You don’t find out until a few weeks into the batch run that the color is drifting, the texture feels different, or the extrusion takes longer. From the start, we designed GR-WOP for manufacturers who remember those headaches. We keep rigorous samples from each production run, then trace everything back to the batch of raw material. Long-term suppliers and steady protocol cut down on the “mystery lot” problem.
Some years ago, one of our long-term paint clients faced trouble with their old yellow pigment. During a hot, humid season, they saw color separation and incomplete grind. Lab teams chased the root cause for weeks before linking it to minor surface treatment variations in their previous supplier’s product. They turned to us under pressure, looking for a pigment that didn’t pull surprises. Within a few months of switching to our batch-controlled GR-WOP, complaints dropped off sharply and their matching department saved hours every week.
Ink manufacturers know that certain pigment yellows can create ghost images or blocking due to oily residues or unreacted intermediates. Our control over raw materials and complete thermal treatment steps prevent those issues. In recycled plastics, where unknown contamination comes with the territory, GR-WOP’s tolerance for background impurities limits visible color shift far more successfully than most alternatives our customers tried in head-to-head runs.
The modern market for colorants is more than just color performance; customers demand safe, compliant solutions. Years back, industry-wide changes swept through pigment production: more scrutiny, more lab testing, tighter restrictions on heavy metal content and aromatic amines. Pigment Yellow GR-WOP meets tough international standards — REACH in Europe, TSCA rules in North America, and similar protocols abroad.
We use only pre-qualified input chemicals with clear certificates, and keep regular testing in place for each lot. Variability in trace contaminants quickly kills a pigment’s reputation. Our customers’ customers — whether automotive makers, appliance brands, or packaging firms — expect confidence in every shipment. By maintaining full compliance records and supporting traceability, we help our partners hold onto that trust. Several clients say that switching to GR-WOP shortened their approval process for new products, saving time and friction with their clients.
There’s nothing wrong with a pigment passing a lab test on a bright spring morning. The difference appears under stress: inks exposed to open air, plastics in a heated press, paints rolled onto brick after a long day. Real-world exposure reveals which materials break down and which hold their place.
In our experience, GR-WOP keeps its yellow tone in lightfastness tests. Plastics exposed to outdoor conditions for months don’t show the quick fading common with less stable alternatives. Polymer film makers opt to use it for cables and agricultural film that stand up to more than just air-conditioning. Coating applicators find their batches don’t suffer from floating or flooding: they get predictable settling and sharp color retention after months, not just days.
No pigment exists in isolation. Every purchasing decision weighs the opportunity cost: what does GR-WOP bring that competitors or older pigments miss? Many pigment yellow options cluster into two camps — organic pigments like diarylides and inorganic oxides. Organic types offer color brilliance but sometimes fall short in heat or UV resistance. Inorganic pigments, especially chromates, last, but at the expense of vibrancy and with more regulatory baggage.
Pigment Yellow GR-WOP steps between these trade-offs. It keeps high color strength — it’s rich but not overpowering. It survives thermoplastic processing and doesn’t deteriorate quickly in the presence of acids, bases, or oxidizers. Unlike cadmium pigments or chrome yellows, GR-WOP doesn’t bring environmental red flags or extra handling precautions. Its organic origin gets safety nods without giving up the punch of chromatic brightness. Where diarylide pigments sometimes come up short in heat resistance, and traditional inorganic options struggle with sharpness or regulatory concerns, GR-WOP proves itself as a safer, yet still robust performer.
We’ve seen the pilot-plant rush when a customer asks for scale-up support. Trials start in 5-kilo batches but need to run 500 times bigger two weeks later. That move from beakers to full blenders never goes smooth if the pigment brings surprises. Our team works alongside partners during scaleups to catch grind shifts, drying rates, and mixing quirks that only show up at real-world volume. The best results come from keeping lines open and sharing lessons both ways, cutting down miscommunication and ensuring the pigment does what it showed in the first test.
Every kilo counts. If a pigment disperses twice as fast or stays fluid at higher loading, that means real savings in man-hours and machine time. GR-WOP’s balance of particle fineness and hydrophobicity brings measurable value in process speed. Our lab shares grind curve data upon request, letting technical teams plan dosing rates. Customers who switched from slower-dispersing yellows saw quick upticks in line throughput and less filter cleanup at day’s end.
Unexpected downtime takes a bigger bite out of margins than raw material swaps. We’ve found most pigment-related shutdowns link back to three sources: inconsistent dispersibility, surprise settling, or unknown impurities. Our internal data reflect fewer customer line issues after adopting GR-WOP, a fact that holds year after year, even as production ramps up.
Many teams struggle with foam and wetting problems during grinding. To fix this, we built our process to reduce surface tension of finished pigment lots, based on feedback from ink and paint plant operators. Less foam means faster de-aeration, tighter color matches, and fewer cleaning cycles. Lower moisture content also trims dry time and helps keep shelf life steady.
We’ve gotten requests for special packaging or pre-dispersed options from high-speed plants. Our flexible manufacturing lets us answer these demands without losing quality control. Whether customers need big drums or specialty bulk bags, we fill each one under an inert environment to lock in freshness and pigment stability.
Plant managers share their approval quickest when machines keep humming and downtime falls. Batch after batch, color holds true. GR-WOP rarely brings mixing headaches, and doesn’t leave sticky losses on mixers or filters. We regularly adjust grinding steps based on what operators see and feel — not just numbers pulled from a spreadsheet.
Some of the best improvements started from customer calls: a molder in Turkey who pointed out a subtle shift in shade, or an Asian film producer flagging a lumping issue after bulk storage. Each change entered our process map, checked by both our QC and floor teams. Adjustments don’t end at the lab bench — they fold into real production, then get benchmarked in the field under harsh, unplanned conditions.
Pressure grows every year for colorant suppliers to cut waste, reduce energy consumption, and slash hazardous outputs. Our production line for Yellow GR-WOP runs solvent-recovery units and recycles as much water as possible. Closed filtration means fewer airborne powders — safer for workers and for our neighbors.
Our supply chain team seeks upstream partners for raw materials checked on social and environmental criteria. Some pigments don’t meet modern needs due to tough-to-control byproducts or complex disposal hurdles. By sticking with formulas free from problematic metals and using safe intermediates, we help downstream users save costly audits and disposal bills. In real terms, this pigment supports cleaner manufacturing, easier compliance, and smoother scale-up for greener end-products.
No matter how today’s market changes, the core demand remains: color that matches last month’s order, no matter external shifts. Years working with repeat buyers, we’ve learned that trust comes from meeting shade targets, shipment after shipment, without long delays or excuses. GR-WOP leaves the plant with a full QC file prepared. We lock down all process logs, sample retains, and raw material histories, so our production team can answer technical questions within hours, not days.
Ongoing partnerships deepen when a pigment backs up its claims. Technical visits and regular check-ins, even after delivery, help us catch application snags before they grow. This open-door policy brought us closer to many longstanding partners, some of whom now run pilot trials of our next-generation products years ahead of the competition. For us, that beat any anonymous five-star review or marketing splash.
Selling pigment yellow GR-WOP means more than pushing a color sample and a spec sheet. Our years behind the reactors and on the plant floor shaped us to think in the same practical terms as our customers. We craft every lot for workhorse performance — not just pretty color, but stable, reliable, and simple to handle. From high-throughput plastics runs to precise printing jobs, the payoff lies in pigment that cuts hassle, saves time, and stands through the toughest working conditions.
We stand by GR-WOP because it answers the demands we hear every week: low hassle, steady shade, durability in whatever climate or process it meets. That solid reputation didn’t come by shortcut or chance. It came from listening, adjusting, and never settling for “good enough” once a better way appeared.