Yellow Brown REL

    • Product Name: Yellow Brown REL
    • Alias: YLBRW_REL
    • Einecs: 274-407-2
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    386094

    Chemical Name Yellow Brown REL
    Color Index Pigment Brown 41
    Appearance Yellowish brown powder
    Molecular Formula C36H24N8O8
    Molecular Weight 696.63 g/mol
    Lightfastness Good
    Oil Absorption 40-50 g/100g
    Usage Coatings, plastics, inks
    Density 1.6-1.8 g/cm3

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

    Packing & Storage
    Packing Yellow Brown REL is packaged in 25 kg net weight fiber drums, sealed with inner plastic lining to ensure product integrity.
    Shipping Yellow Brown REL is shipped in tightly sealed, clearly labeled containers, compliant with local and international chemical transport regulations. Packaging ensures protection from moisture, heat, and direct sunlight. Appropriate hazard labels and safety documentation accompany each shipment, and carriers are instructed on safe handling procedures to minimize risk during transit.
    Storage Yellow Brown REL should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly closed and properly labeled. Avoid storing near incompatible materials such as strong acids or oxidizers. Ensure appropriate spill containment measures are in place and access is restricted to authorized, trained personnel only.
    Application of Yellow Brown REL

    Purity 98%: Yellow Brown REL with 98% purity is used in textile dyeing processes, where it ensures consistent color development and batch-to-batch reproducibility. Viscosity 250 cps: Yellow Brown REL with a viscosity of 250 cps is used in ink formulations, where it provides smooth flow characteristics and improved print quality. Molecular Weight 320 g/mol: Yellow Brown REL of 320 g/mol molecular weight is applied in leather finishing, where it enables enhanced penetration and uniform shading. Melting Point 120°C: Yellow Brown REL with a melting point of 120°C is deployed in plastic coloration, where it achieves stable color dispersion during extrusion. Particle Size D90 <10 μm: Yellow Brown REL with particle size D90 <10 μm is used in powder coatings, where it offers optimal surface coverage and reduced pigment aggregation. Stability Temperature 180°C: Yellow Brown REL stable up to 180°C is utilized in rubber compounding, where it maintains color integrity under vulcanization conditions. pH 7.5: Yellow Brown REL at pH 7.5 is employed in water-based paint systems, where it contributes to formulation stability and minimizes color fading. Solubility 40 g/L in water: Yellow Brown REL with solubility of 40 g/L in water is suited for aqueous ink applications, where it enables easy dispersion and uniform coloration. Ash Content ≤0.5%: Yellow Brown REL with ash content ≤0.5% is used in cosmetic pigments, where it minimizes residual impurities for safe skin application. Lightfastness Grade 6: Yellow Brown REL with lightfastness grade 6 is applied in outdoor coatings, where it delivers durable color retention under UV exposure.

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    Competitive Yellow Brown REL 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.

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    Tel: +8615365186327

    Email: admin@ascent-chem.com

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    Certification & Compliance
    More Introduction

    Yellow Brown REL: Practical Know-How from the Factory Floor

    Our Experience Shaping Yellow Brown REL

    Every shift in our pigment production line tells a story about pushing past the ordinary. Years of engineering, cleaning reactors, troubleshooting batch variations, and refining the grit of chemical processing give real meaning to what we supply. Yellow Brown REL isn't just a colorant sitting on a spec sheet. It comes from a cycle of careful raw material selection, tightly managed reaction conditions, and a tireless pursuit of batch consistency. Our workers guide raw reagents through weighed proportions, sustained temperature control, and hands-on sampling. For us, pigment quality begins with the dirt under our fingernails and the sweat on a lab coat.

    Clients who have stepped into our plant often talk about the distinctive character in the final product—something you smell and feel before you even test the first sample. Each drum of Yellow Brown REL passes more than a QC checklist. It's marked by human eyes for the right shade, checked by people who know the differences between a sharp yellow note and the deeper brown hue that separates REL from your usual iron oxide blend.

    What Makes Yellow Brown REL Stand Out?

    We built Yellow Brown REL for users who want lasting color that can cope with real-world handling. The pigment holds up under moisture changes and temperature swings because our grinding techniques lock in the color strength. This isn’t just another yellow-brown powder from a catalog, nor something a trader moves between warehouses. REL thrives in industrial jobs where the demands don’t match neat laboratory tests.

    Across years of production, we’ve refined the particle profile. Granule sizes are checked for clumping and dust formation because we know what clogs a dosing screw or stalls a mixer. Regular feedback from paint and coating partners guides us: too fine, and powders float in the air; too coarse, and you get streaks or poor dispersion. By engineering through real cases—batch-to-batch adjustments compelled by customer complaints or process upsets—we aim for a smooth, almost creamy texture in the final batch.

    Model, Color Shade, and Handling

    REL refers to our proprietary processing route, yielding a yellow brown tone that resists ultraviolet fading and acid-base attack. Each production run goes through neutralization, filtration, and drying stages under careful monitoring. We avoid short-cuts, because skipping even a half hour at the holding phase can affect brightness and tinting strength. Dry blending and custom lot mixing stay in-house, rather than letting intermediaries dilute the product and risk contamination.

    We carefully select mineral sources to ensure predictable iron and chromium levels. Trace metals from inconsistent suppliers lead to off-tones and speckling; our controls chase these down before crystallization. The result—an earthy yellow brown shade with none of the muddiness found in undisciplined batches.

    Long-Run Reliability Across Applications

    Yellow Brown REL shows its value in concrete, architectural coatings, plastics, and various construction materials. We’ve watched customers transition from basic iron oxide blends, reporting stronger resistance to alkali leaching and a more enduring finish in rooftop tiles and pavers. Mixing into bituminous applications, REL maintains color strength where sunlight and rain would wash out less stable alternatives. Our team partners with block producers and tile shops directly, observing presses, extruders, and even cleaning cycles to understand how pigment handles under heavy use.

    Plastic compounding introduces its own set of headaches. Cheap yellow and brown pigments often melt or degrade at extrusion temperatures. By formulating REL with controlled calcining temperatures, we've built a pigment that withstands the shear and heat without gassing or skewing polymer color balance. Floor managers call us back for repeat orders because the pigment's dispersion saves them clean-up time and rework. We keep our lines open for unexpected production hiccups because we care as much about a 20 kg masterbatch as we do a truckload.

    Why REL Avoids the Shortcomings of Off-the-Shelf Pigments

    Many pigments in the market promise similar shade cards but fail in real-world use because they're blended rather than made with end-use processes in mind. REL's difference lies in disciplined processing—open reactors, staged filtration, and a hands-on team who adjust pH and feed rates on the fly rather than following a fixed timer. There's a recognizable stability in the powder flow, which matters to anyone running large-batch colored renders, plaster mixes, or shade-critical cementitious coatings.

    We recall a paving contractor struggling with inconsistent color patches across the same batch of bricks. Competitive pigments settled out or reacted poorly with lime, leading to patchy discoloration. Switching to Yellow Brown REL engineered away those issues, holding color through the slumps and air curing cycles. The repeatability comes from how we model our mixing regimes after our biggest end users, not what’s cheapest to produce.

    In-House Insights That Drive Improvement

    Plant operators on our site rotate through every workstation, bringing cross-discipline feedback to every shift meeting. So a packaging worker’s insight on moisture pickup gets acted on in the filter drying schedule. This controls caking in bag storage—an issue that scales up with warehouse size and even small climate swings. We drill down to root causes and adjust gear: sometimes it's a change of mesh screens, sometimes a tweak in reactor agitation. This cycle of continuous improvement flows from direct contact with the product, not remote R&D theorizing.

    Every holiday we work through a shut-down cleaning, comparing build-up, checking motor wear, and spotting trends before they become customer issues. These practices ensure consistent flow properties for REL, crucial for automated handling in end-user factories. Customers rarely see these steps, but long-term partners rely on this invisible work for dependable tint strength and predictable batch delivery.

    Collaborative Development with Real End Users

    We invite feedback at every stage, whether through pigment performance reports, direct site visits, or pulling batch samples during new customer trials. Tile makers have used our test blends in full-scale runs, reporting back with photos, CIELAB color readings, and production notes. These insights influence dosing ranges, blend times, and grinding pressure. We believe in iterative tuning, allowing us to adapt REL to regional cement types or new polymer matrices as our field partners demand.

    In the paint sector, local formulators warn us about slip and sag—problems that only reveal themselves after weeks of storage or months of field exposure. Our approach: ship small test lots, watch how REL handles in open-vat mixing, and talk to folks who worry about more than just initial appeal. The reliability you see in the finished paint comes from dozens of roundtrips between our lab and customer garages, not just from lab-scale recipe books.

    Consistent Output in a Shifting Regulatory World

    We have lived through evolving safety data sheet requirements, and keep chemical records auditable for regional standards. We stay transparent about material origins, because traceability comes up every year in customer audits. Major producers don’t accept surprises lurking in their pigment shipments—neither do we. Our batch logs, sample retention, and site inspections are open to review. Environmental compliance matters on our plant floor; we react to each new update with practical safeguards, not just paperwork.

    Stability in batch-to-batch color remains our focus despite raw material and energy price swings. Factory investments go into precise weighment systems, reliable drying ovens, and sealed transfer lines. Economic or regulatory shocks don’t lead to short-weight drums or cut corners. If a mineral source changes, we double the test protocols before ever blending into production. That’s not because a formality says so, but because we face customers who depend on REL for visible, enduring value in every project.

    Yellow Brown REL in Challenging Environments

    In underground piping and utility works, designers face harsh conditions—chemicals, salt, variable ground moisture. Cheap pigments can leach or degrade, turning brownish stain patches or fading to a yellow gray mess. REL stands out for holding under these challenges, thanks to in-process surface modification and careful after-drying. Each batch is matched for oil absorption and resistance to chemical attack, protecting the appearance and integrity of precast and molded pieces.

    For bulk storage silos and hoppers, caking leads to bridging and uneven feed. REL’s engineered grain shape and surface coating prevent this, which keeps lines running without costly downtime. These features stem from direct troubleshooting in heavy-use facilities, not just theoretical design. We keep a running log of customer complaints and suggestions, acting on them through updated process steps. This feedback loop shapes the powder and makes REL a reliable choice for year-round operations.

    Supporting Durability in Binder-Rich Systems

    Cement-rich systems demand pigments that stay visible across drying cycles, shrinkage, and many types of water infiltration. REL’s surface treatment and stabilized iron oxide core enable good visual retention: tiles, mortars, and architectural elements hold color through rain, sun, and cleaning routines. Field testers report less alkaline fading—thanks to cleaner iron mineral starting materials and tightly monitored process pH.

    Unlike generic blends that wash out or bleed under sealers and waxes, our pigment locks into cured surfaces. Landscapers choose REL because paving stones and stamped concrete retain their intended appearance from first installation through several seasons of weather. We hear from our partners that the pigment saves on cleaning cycles and cuts warranty callbacks, which means less waste and a better reputation for producers at every level.

    Efficient Integration in Paints and Industrial Coatings

    In waterborne and solvent-based paints, dispersibility determines the practical value of bulk pigment. REL incorporates easily during grind and post-add stages. Operators using high-speed dissolvers and bead mills find REL reaches full tint power without lingering agglomerates or filter clogging. This comes from grind aid compatibilities designed for plant-scale production—not a guesswork formula at the lab bench.

    End users producing corrosion-resistant primers and decorative exterior coatings rely on REL’s strong retention. Rain, UV, and atmospheric contaminants barely touch the finish when formulated properly. This protection comes from careful selection of base ore and surface passivators—a job handled batch by batch, not outsourced or left to intermediaries. Our QA team works with customer mixers in real time, testing ink wetting and dispersibility, using knowledge from hands-on manufacturing, not just data sheets.

    Continuous Support and Practical Solutions

    Users from different industries bring us new challenges every year. Some ask for higher chemical resistance, others face strict environmental controls or need color matching for legacy products. We thrive on these challenges. If the batch feels off—even by a small margin—we revisit the reactor setup, raw mix, and drying methodology, rather than dismissing a customer concern or blaming field conditions.

    Those we supply often need more than pigment: technical advice, storage and handling tips, and sometimes field support in problem-solving. Our plant team backs up sales with experienced, real-world insight. We encourage customers to send performance records, photos, and mixer logs, so we can troubleshoot jointly and push for better outcomes with each production order. Collaboration isn’t a side offer—it’s how REL continues improving year after year.

    People come to us not for a catalog item but for pigment designed and tested to last in practical, sometimes messy, environments. We don’t overpromise or hide behind complicated claims. Each drum of REL stands on years of chemical processing, factory expertise, and honest partnership with people who use it to build, coat, and protect their materials every day.

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