|
HS Code |
368545 |
| Product Name | PreniphorTM EPFR-200D |
| Type | Epoxy Resin Hardener |
| Chemical Base | Cycloaliphatic Amine |
| Appearance | Clear to pale yellow liquid |
| Viscosity 25c Mpa S | 200-400 |
| Amine Value Mgkoh G | 420-450 |
| Density 25c G Cm3 | 1.02-1.06 |
| Mix Ratio Resin Hardener By Weight | 100:50 |
| Pot Life 25c Minutes | 30-40 |
| Recommended Curing Temperature C | 25 |
| Glass Transition Temperature Tg C | 70-75 |
| Storage Temperature C | 5-40 |
As an accredited PreniphorTM EPFR-200D factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Preniphor™ EPFR-200D is packaged in a 25 kg high-density polyethylene (HDPE) drum featuring tamper-evident seals for safety. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for PreniphorTM EPFR-200D: Typically loaded as 16-18 metric tons, securely packed in 20-foot containers. |
| Shipping | Preniphor™ EPFR-200D is shipped in sealed, moisture-resistant, high-density polyethylene (HDPE) drums or bags to ensure product integrity. Containers are clearly labeled, securely palletized, and handled as per safety regulations. Store and transport in a cool, dry environment away from incompatible materials, protected from direct sunlight and physical damage. |
| Storage | Preniphor™ EPFR-200D should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep the container tightly closed and avoid exposure to moisture and incompatible substances. Storage temperature should be maintained between 5°C and 35°C. Ensure proper labeling and prevent contamination to maintain product quality and safety. |
| Shelf Life | The shelf life of Preniphor™ EPFR-200D is 12 months from the date of manufacture when stored in original, sealed containers. |
Competitive PreniphorTM EPFR-200D 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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Decades on the shop floor, in the lab, and in lively meetings with customers have shaped the way we approach chemical manufacturing. Cheap fixes, recycled marketing claims, and copycat formulas never last through the scrutiny of real-world applications. Companies across plastics, textiles, and construction face new fire regulation hurdles every year. As the team behind PreniphorTM EPFR-200D, our role extends beyond shipping drums and updating product catalogs—we have a front-row seat to both the challenges producers face and the solutions advanced chemistry can deliver.
Early on, fire regulatory standards meant loading up with high-bulk, sometimes hazardous flame retardants. Formulations rode the line between performance and risk. We saw plastics lose mechanical strength, fibers shed poorly, and foams off-gas toxins no one wanted near consumers or workers. Each product cycle surfaced a trade-off: how to balance durability, fire resistance, and environmental safety. As pressure from both regulators and downstream consumers grew, the standards matured, but so did the technology. That’s where our work with phosphorus-based flame retardant systems took off, opening a blend of performance and safety we long aimed to see.
PreniphorTM EPFR-200D fits into that legacy of continuous improvement. Instead of copying what’s already available, we built the model around direct customer feedback, lab benchmarking, and persistent fine-tuning. The product core is an oligomeric phosphorus flame retardant, tailored for high-performance applications where traditional small-molecule additives either bleed out, fail regulatory screens, or weaken end-use material. Here, the EPFR-200D’s molecular architecture sets it apart. By locking in phosphorus in a higher molecular weight framework, it brings high fire-protection values without migrating, blooming, or degrading polymer properties. We watched standard test specimens go through abuse cycles that mirror both the factory and the end user. The outcome—retained tensile properties in flame-retardant polypropylene, few signs of plate-out in injection molding, no haze in polycarbonate blends, and clean processability batch after batch.
Manufacturers trust their lines and brands to us, so traceability and reproducibility get top billing. Every lot of EPFR-200D undergoes not only regular QA, but real simulation runs with our own extrusion and compounding teams on pilot scale, far beyond minimum QC standards. Over the years the process has seen fine tweaks; we worked to minimize residual monomer and hydrolyzable content, which earlier generations of flame retardants couldn’t fix. That effort paid off; end-use plastics manufactured with our material remain tough, color-stable, and effective without costly retooling.
Data points matter to engineers and chemists signing off on new product blends. But in practical terms, what separates EPFR-200D from a crowded field? The answer comes straight from customer shop floors, where product consistency, compatibility, and safety matter as much as any specification sheet. Controlled phosphorus migration ensures long-term regulatory compliance—including the demanding limits now common in RoHS and REACH settings. We designed the product to support both halogen-free policies and low environmental persistence, giving compounders confidence at audit time.
Ask anyone in the compounding business how tough flame retardant selection can be for polypropylene, polyesters or polycarbonate applications, and you’ll hear the same complaints: plate-out in dies, stickiness in extruders, and ghosting in clear plastics. Each of these problems drives up cost and production headaches. During the live application trials, EPFR-200D kept lines running without unintended surface defects or costly tool cleaning cycles. Injection molders saw reduced screw and tool fouling, which translates to longer maintenance intervals and higher uptime. Downstream, the finished parts moved straight to assembly without losing out on finish or mechanical performance.
Clients want to understand not just ‘what’ is in the product but ‘how’ it slots into their processes. The EPFR-200D is manufactured in a closely controlled continuous reactor that eliminates batch-to-batch swings. Final product represents a phosphorus content in the ten to twenty percent range—higher than most standard blends in the same market. The physical form is a low-dusting, free-flowing powder. Customers working with automated feeder systems and precision blending appreciate the safety and simplicity this enables. In practice, major wire and cable manufacturers, appliance molders, and textile coaters have all switched to EPFR-200D for upstream dosing: the powder disperses without clumping, and it doesn’t separate out during storage or handling. After years of field feedback, we made tweaks to improve bulk density and particle size, streamlining logistics for high-volume processors who run 24/7.
Compatibility sets the tone for the rest of the process. Integrators blending complex polymer recipes value the way EPFR-200D incorporates into polyolefin, polycarbonate, PET, and ABS systems. Unlike traditional ammonium phosphate or decabromo additives, our product does not plasticize or drive loss in notched impact or tensile strength. Formulators cutting FR packages to meet 5VA, V-0, or UL94 ratings can often decrease total additive load, since EPFR-200D’s high phosphorus efficiency translates to a lower dosage. In our own test lab, samples passed strict heat aging even with reduced loadings; the key findings matched what users reported in their own facilities—the product tackles both regulatory and process challenges in one tool.
Flame retardant regulations shift rapidly, and we watch every trend—not just at the desk, but in the lab and with frontline workers. The legacy of persistent halogenated additives still hangs over the whole market. Over the last few years, downstream brands face mounting scrutiny on every additive, both for production exposure and end-of-life disposal. Customers don’t just ask about performance anymore—they need assurance that supply decisions won’t backfire after market audits or health and safety reviews.
To meet these evolving pressures, we took care with every aspect of PreniphorTM EPFR-200D’s design and documentation. The compound meets leading international requirements for halogen-free, low VOC, and low toxicity performance. Our audits now routinely address questions about SVHC (Substances of Very High Concern) content, REACH registration status, and end-of-life stewardship. These aren’t just checkboxes for us; every run is traceable to both upstream raw material and downstream batch records, so we can confidently assure compliance even when regulations change mid-stream. Major eco-labeling groups sampled our material and reviewed LCA reporting. In practical terms, our job is to make sure no surprises disrupt customers’ workflows or reputations down the road.
Over the past three years, markets for safer flame retardants expanded beyond expectation. Construction panels, automotive composites, and appliance housings all require ever-stronger fire protection along with documented environmental credentials. When regulations in East Asia narrowed allowable halogen content in electrical enclosures, several producers reached out looking for a drop-in replacement. They faced tight deadlines and no time for retooling. Our engineering team provided trial material and direct support at their pilot lines. After quick qualification runs, these customers met both local and export demands for safer, high-performing end products without hiccups in their manufacturing cycles.
A major European toy brand challenged us on transparency and health safety—they wanted no migration risks at all, zero residual monomer, and no compromise on impact resistance or surface finish. Our R&D team returned an improved grade with extra purification to match their standards. The testing phase included not just standard burning rates, but migration studies with simulated saliva and sweat. Results came back clean; the toy company cleared their product for both European and North American standards, even winning direct praise from safety auditors.
No material hits the market perfectly finished. Feedback drives our lab optimization, manufacturing tweaks, and even the way we talk about our product. Manufacturers on every continent provided feedback on everything from lot color stability to drum discharge speeds. A partner in the wire and cable sector needed extra assurance on heat aging performance and conduit compatibility; our lab got busy stress-testing under higher temperature cycles, targeting the max real-world loadings their specifications requested. The updated process shaved down side-reactions that, in earlier flame retardants, could drive unpredictable color drift or processing fouling. A board manufacturer in the US, working with both recycled and virgin plastics, needed reliable melt flow properties even with significant batch-to-batch polyolefin variation. EPFR-200D met the challenge, allowing higher recycled content without losing electrical or mechanical ratings.
Direct conversations with compounders and downstream converters led to two ongoing improvements: an anti-caking agent developed in-house to prevent agglomeration in higher humidity plants, and a continuous particle size screening program that catches outliers long before they reach the blending hopper. Every year, new use-cases arrive across applications that require digitized batch data, increased allergen transparency, or unique blending protocols. Our small-lot production line takes on these experimental runs and shares the findings back upstream to feed into both manufacturing SOPs and product literature.
On a crowded supplier landscape, differences between flame retardants often hide behind a blur of product codes and partial specifications. From long experience, we see the real separation in how a product handles at every stage: storage, blending, compounding, processing, final use. With PreniphorTM EPFR-200D, the winning points come down to repeatable phosphorus efficiency, stability against migration, and adaptability across a wide variety of polymer matrices. Many legacy products use fine dusts or oily liquids that slow down blending or clump in intermediate storage. We took the extra step of offering our product as a uniform, granular powder with improved anti-caking resistance, lowering both operator exposure risk and time wasted on cleanups.
Another core difference: stability against hydrolysis, which means both dry and wet environments have only minimal phosphate release. This stability supports not only safety during processing, but confidence in finished end-use parts. Automotive panel makers use this to ensure that interior or under-hood plastics won’t fail after exposure to ambient humidity cycles, or leach unwanted material over prolonged use. Pipe and conduit manufacturers see benefits in electrical resistance and mechanical stability maintained over years, rather than degrading in the first few months. While it took weeks of benchwork, that durability shows every time our technical reps visit customer production floors and see robust, clean, high-quality parts tumbling off the line.
Everyone in this industry has a disaster story about a product failing an audit, a lot misbehaving on the line, or a safety report coming up short. Early on, we grappled with some of the same issues: batches of flame retardant that thickened too much, separated after months in storage, or failed to mix into certain masterbatches. We made a point to keep these stories in mind during development, aiming not just for an average-performance product but one that could handle outlier situations in scale-up and use.
Our molecular team tackled migration head-on: they structured the phosphorus so it bonds more tightly into the polymer backbone, cutting down on leaching and ensuring more stable, longer-lasting flame retardancy. The physical engineering side handled issues with material flow—improving powder density and adding a tailor-driven antistatic blend to lower dust and static cling in automated environments. On the environmental side, earlier versions needed extra screening to rule out trace contaminants; now, every new lot runs through microanalysis to ensure batch-to-batch purity and compliance with the most recent SVHC lists. We apply what we learn from each mistake or feedback cycle, and the ongoing benefit is obvious to customers who previously lost production time or faced off-spec rejects.
Manufacturers expect not only a product, but also thorough technical support and follow-up. Every customer faces a unique blend of application needs and production realities. Instead of relying on generic recommendations, we run side-by-side production and pilot trials in our own facilities, then share those results openly. Technical teams travel regularly to manufacturing sites, reviewing processing protocols, performing line audits, and walking through troubleshooting in person. This hands-on partnership often uncovers surprising ways users employ the product: from new methods of dry blending for extruders, to alternative dosing strategies for vertical mixers in thin-wall injection shops.
Process troubleshooting includes everything from on-site blending demonstrations to in-plant QA support, where operators get experience not just from a sales pitch but from process engineers used to running the same equipment. Tooling specialists sometimes need data about residue buildup rates, parts washer compatibility, or environmental controls. Production planners face concerns about shipment quantities, batch sizes, and compatibility with high-throughput automated feeds. Every one of these questions feeds back into ongoing improvements—closing not just the manufacturing loop, but also tightening the cycle between customer need and best-practice chemical engineering.
Across the whole sector, demand for safer, high-performance flame retardants keeps growing. The fast rise of e-mobility, home electronics, and modern insulation systems expands both regulatory scrutiny and performance expectations. Manufacturers can no longer rely on aging formulas or generic, one-size-fits-all flame protection schemes. The lines keep blurring between environmental safety, health protection, and high mechanical performance.
Our roadmap for PreniphorTM EPFR-200D reflects this customer-driven urgency. R&D teams focus now on continuing to raise phosphorus retention, developing even finer anti-caking technologies, and increasing compatibility with growing classes of recycled and bioplastic polymers. These aren’t marketing promises—they follow real requests from customers facing mounting compliance audits, health and safety reviews, and design pushes for greener products. New pilot lines run weekly in our own plants, with customers weighing in on dosing systems, blending times, and long-term storage needs. We see no end to this improvement cycle, and the result is an evolving portfolio of solutions to keep up with tomorrow’s standards.
Every day, we work with manufacturing and engineering teams who rely on us for not just reliable supply, but also for deep technical know-how and practical application support. PreniphorTM EPFR-200D comes out of that tradition—a product refined by feedback from thousands of runs, in dozens of applications, across a full range of regulatory and operational hurdles. We designed it to make the most difference where it counts: on your production floor, in your end-use products, and through every audit that tests the value of what you bring to market.
Our commitment as a manufacturer does not stop at the factory gate. We chart every improvement, field every challenge, and put new ideas through both bench and plant trials to keep ahead of changing standards. If your production lines demand not just theoretical compliance, but practical, real-world results with support that tracks every batch, our team stands ready to partner with you on new challenges—whether in established markets or emerging applications.