When a product specification requires a UL 94 V-0 rating in a glass-filled PA6 housing, standard off-the-shelf flame retardant additives often fall short. The polymer matrix, processing temperature, and mechanical property targets all impose constraints that a generic additive cannot satisfy. This is where custom single substance flame retardants come into play. Unlike compounded multi-additive systems, a single substance flame retardant is a defined chemical compound—magnesium hydroxide, aluminum hydroxide, melamine cyanurate, or ammonium polyphosphate, for example—selected and tailored for a specific resin system. The focus of this guide is the "custom" part: what parameters can be adjusted, how those adjustments influence performance, and how to evaluate a supplier who claims to offer true customization. What Are Single Substance Flame Retardants and Why Does Customization Matter? A single substance flame retardant is exactly what the name suggests: one chemical compound that provides flame retardancy on its own, without relying on a pre-formulated blend of multiple active ingredients. Examples include synthetic magnesium hydroxide (MDH), aluminum hydroxide (ATH), melamine cyanurate (MCA), and ammonium polyphosphate (APP). The key distinction from compound systems is predictability—with one active component, the decomposition temperature, endothermic behavior, and char-forming tendency are all characteristic of that specific molecule. Customization matters because the same chemical behaves differently depending on the host polymer and processing conditions. Take magnesium hydroxide as an example. MDH decomposes at approximately 330°C, releasing water and absorbing heat. This makes it suitable for thermoplastics processed below that temperature, such as polypropylene (PP) or ethylene-vinyl acetate (EVA). By contrast, aluminum hydroxide decomposes around 200°C, which narrows the processing window significantly. If you are running a PA6 compound at 240–280°C, ATH is not a viable option—it will decompose during processing. This single example illustrates why "custom" begins with matching the monomer’s intrinsic properties to the base resin’s processing window. A second reason customization matters is particle engineering. Our production capability for high-purity, ultra-fine grades directly addresses the fact that particle size distribution influences dispersion, mechanical property retention, and flame retardant efficiency. A 1-micron median particle size behaves differently from a 5-micron one, even in the same polymer. So when you hear "custom," it should mean more than just picking a chemical from a catalog—it should mean tuning that chemical to your application. How Single Substance Flame Retardants Work: Mechanisms Every Buyer Should Understand To specify the right custom monomer, you need to understand the three fundamental mechanisms by which these compounds interrupt combustion. Each mechanism has distinct implications for material performance and processing. Heat Absorption and Cooling Effect Metal hydroxides such as ATH and MDH act primarily through endothermic decomposition. When heated, they absorb energy and release water vapor, which also dilutes combustible gases in the flame zone. The practical consequence is that to achieve a meaningful UL 94 rating, you generally need high loading levels—often 40–60% by weight. That high loading impacts density and mechanical properties, so particle size and surface treatment become crucial to maintain acceptable impact strength. Char Layer Formation Phosphorus-based monomers like APP and dedicated charring agents promote the formation of an insulating carbon layer on the polymer surface. This physically separates the underlying material from heat and oxygen, reduces heat release, and prevents dripping. For engineering plastics such as PA and PBT, char formation is often the preferred mechanism because it requires lower loadings—typically 15–30%—and preserves more of the base resin’s mechanical integrity. Gas Phase Flame Interruption Some flame retardants, notably halogenated compounds, interrupt combustion in the gas phase by scavenging free radicals. While highly effective at low loadings, halogenated systems face increasing regulatory pressure under RoHS and REACH. For environmentally focused formulations, non-halogen alternatives that operate in the condensed phase are generally preferred, even if they require higher loadings or synergistic additives. For a buyer, the mechanism determines what you must optimize. If smoke density and toxicity are project requirements, mineral-based monomers are the safer choice. If retention of electrical insulation properties is critical, a char-forming mechanism at lower loading is often better. Your custom specification should therefore begin with a clear understanding of which mechanism aligns with your end-use environment. Key Categories of Single Substance Flame Retardants for Custom Formulations The classification below covers the main monomer families available for custom formulation work. Each category has a distinct fit for particular polymer systems. Common single substance flame retardant categories and their typical application envelopes. Category Examples Typical Polymers Loading Range Key Characteristics Mineral hydroxides MDH, ATH, hydromagnesite PP, PE, EVA, elastomers 40–60 wt% Low smoke, low cost, high loading penalty Phosphorus-based APP, organic phosphinates PA, PBT, epoxy 15–30 wt% Effective char former, lower loading Nitrogen-based MCA, melamine polyphosphate PA6, PA66, TPU 5–15 wt% Very low loading for V-0, drips may still occur Charring agents and synergists Charring agents, montmorillonite, sepiolite, attapulgite PP, PA (as co-additives) 1–10 wt% Improve char quality, anti-drip, synergy with MDH/APP Minerals like MDH and ATH are the workhorses for polyolefins, delivering reliable V-0 performance at high loadings with excellent environmental profile. Phosphorus-based monomers are the go-to for engineering thermoplastics where mechanical retention matters. MCA is remarkable in PA systems—just 5–10% can achieve V-0 in thin sections, though it may require an anti-drip additive. Charring agents and clay-based synergists are used in combination with other monomers—for example, montmorillonite or sepiolite with MDH to improve char integrity and reduce dripping. The "custom" angle here is straightforward: choosing the correct monomer family for your base resin is step one. Only after that decision is made do the finer dimensions of customization—particle size, surface treatment, and synergistic optimization—become relevant. Seven Customization Dimensions Beyond the Chemical Itself When a supplier says "we can customize," it pays to know exactly which parameters are on the table. Seven physical and logistical dimensions matter in industrial practice. 1. Particle Size Distribution Ultra-fine particles (<2 µm) disperse more evenly and provide more surface area for endothermic decomposition, but they also tend to agglomerate and increase compound viscosity. Coarser grades handle better in extrusion but may yield lower flame retardant efficiency at the same loading. A custom specification should define a PSD (d50 and top-cut) matched to your compounding equipment and final part thickness. 2. Surface Treatment and Coating This is perhaps the most impactful customization dimension. Untreated magnesium hydroxide is hydrophilic and will absorb moisture, causing defects in extruded parts and reducing mechanical properties. Silane coupling agents or fatty acid coatings improve compatibility with hydrophobic polymers like PP. For humid environments or high-humidity processing, a hydrophobic surface treatment is not optional—it is mandatory. 3. Purity Control Trace metal impurities—iron, copper, manganese—catalyze polymer degradation at processing temperatures, leading to discoloration and loss of mechanical strength. High-purity grades (typically >99% for synthetic MDH) are specified for applications demanding electrical insulation or consistent color appearance. Purity directly affects both thermal stability and the consistency of batch-to-batch results. 4. Loading Level and Synergist Optimization Customization often involves finding the minimum effective loading for your target UL 94 rating. This is never a single-variable exercise. Combining a primary monomer with a synergist—for example, using MDH with small amounts of sepiolite or montmorillonite—can reduce the total inorganic loading by 10–20% while maintaining the same V-0 rating. This preserves mechanical properties and reduces density, a valuable trade-off in automotive and transportation applications. 5. Thermal Stability Adjustment Each monomer family has a defined decomposition temperature, but within that family, particle morphology and surface modifiers can shift the effective processing window. If your extrusion temperature approaches the decomposition onset, the custom solution is a specific grade with optimized thermal stability—validated by TGA or DSC data. 6. Particle Morphology Plate-like particles (e.g., hydrotalcite or layered silicates) act as a physical barrier in the condensed phase, improving char strength. Fibrous morphologies reinforce the char layer but may complicate dispersion. Spherical or granular morphologies flow best in handling and dosing. Morphology is a rarely discussed but critical custom dimension that affects both flame retardancy and mechanical isotropy. 7. Packaging and Logistics Specifications In an industrial procurement context, customization extends to packaging—jumbo bags, small paper bags, moisture-proof vacuum-sealed packaging—and delivery logistics. For grades prone to moisture pickup (especially MDH), selected moisture-proof packaging can be the difference between a smooth production run and a scrapped batch. While not chemistry, this is a practical dimension of the "custom" promise. Our in-house application testing laboratory supports this depth of customization by running actual UL 94 tests on your specific base resin, not just theoretical data sheets. This capability transforms the customization process from a promise into an evidence-based engineering exercise. UL 94 Ratings and Regulatory Considerations in Custom Selection UL 94 is the most common benchmark for plastics flammability in North America. The V-0, V-1, and V-2 ratings classify materials based on burning time after an ignited flame is removed, and whether flaming drips occur. For enclosure parts, V-0 is typically the target. For internal components, V-2 may be acceptable. The gap between V-2 and V-0 in terms of required additive loading is not linear—it can be substantial, directly affecting part cost and mechanical performance. A credible custom development process must make this relationship explicit. Your supplier should be able to show a table of typical loading versus achieved UL 94 rating for your specific base resin. Without such data, you are buying a promise, not an engineered solution. Regulatory pressure is reshaping monomer selection. RoHS restricts certain hazardous substances, and REACH continues to tighten registration requirements. The trend toward halogen-free solutions is strong, especially in electronics and transportation. If you are currently using antimony trioxide (ATO) as a synergist, you will be aware of its supply chain and regulatory vulnerability. Eco-friendly alternatives that reduce or eliminate ATO are available, and a forward-looking supplier with ATO-free options in its portfolio—as we have in ours—can help you future-proof your formulations against tightening regulations. Beyond UL 94, consider end-of-life disposal requirements and OEM-specific substance lists. A custom monomer selection should align not just with fire safety targets but with your full compliance matrix. Ensure your supplier can provide compliance status documentation and application test data rather than just a chemical safety datasheet. How to Evaluate a Custom Single Substance Flame Retardant Supplier The capability to supply a standard grade from a warehouse is common. The capability to develop a tailored grade for your application is rare. Evaluating a supplier for the latter requires a focused audit of specific competencies. Application Testing Capability The single most important question to ask is: can you run UL 94 tests on my base resin when I send you samples? A supplier with its own application testing laboratory will produce a technical report with measured data—burn times, drip observations, heat release—rather than generic estimates. Our own application testing laboratory and technical support exists for exactly this purpose. Granulation Control and Quality Consistency Ask for particle size distribution reports from multiple lots and assess the variability. A <3% coefficient of variation in d50 across batches is a reasonable expectation for an established producer. Request moisture content data and check the consistency. A supplier who cannot provide these records lacks process control. Response Speed for Prototypes Custom development cycles in plastic compounding are typically 4–8 weeks from specification to sample. A supplier who can produce a custom surface-treated or PSD-adjusted sample within two weeks is demonstrating real manufacturing flexibility. A supplier who asks for a minimum order quantity of 10 tons before producing a sample is not set up for customization work. Product Range and Alternatives A single-product producer can only optimize within one chemical family. A supplier with a broad portfolio that spans monomers, compounded systems, masterbatches, and elastomer materials can offer objective advice on which product form and chemistry is truly best for your application, rather than steering you to the only product they make. Multi-Chemistry Synergy Suppliers who actively invest in alternative systems—such as ATO-free synergists—demonstrate strategic alignment with the regulatory trend. In a custom development project, this means they will propose solutions based on future regulatory certainty, not just current compliance. Conclusion: From Standard Products to Tailored Fire Safety Customizing a single substance flame retardant is not a mystical process, but it is a systematic one. The base resin determines the chemical family—choose MDH or ATH for polyolefins, phosphorus-based monomers for engineering plastics, MCA for PA. The target UL 94 rating determines the loading window. The processing temperature profile dictates the acceptable decomposition range, and the required mechanical properties push you toward particle size and surface treatment adjustments. Regulatory constraints narrow the field further toward non-halogen, low-toxicity systems. Before you start the conversation with a supplier, prepare a short dossier: base resin grade and supplier, processing temperature range, target UL 94 rating (and any thin-wall requirements), end-use environmental conditions (heat, humidity, electrical stress), and the cost boundary per kilogram of finished compound. This information allows the supplier to move directly to candidate grades and realistic test plans. Effective customization is not a one-time formula tweak; it is an iterative engineering partnership. The right supplier will test, measure, adjust, and re-test until the system is optimized for your process—not just for a datasheet. Our philosophy at flame-materials-factory.com is built on continuous application-focused development with timely technical support. If your project requires a monomer tailored to a specific resin and processing condition, the practical next step is to bring your material specification to that engineering conversation. .article-section{font-family:inherit;line-height:1.6;} .article-section h2{font-size:22px;font-weight:bold;text-align:left;margin-bottom:12px!important;} .article-section h3{font-size:16px;font-weight:bold;text-align:left;margin-bottom:12px;} .article-section p{font-size:16px!important;margin-bottom:12px;} .article-section ul{margin-bottom:12px;list-style-type:disc;list-style-position:inside;} .article-section ol{margin-bottom:12px;list-style-type:decimal;list-style-position:inside;padding-left:0;} .article-section li{list-style:inherit;font-size:16px;margin-bottom:6px;} .article-section table{display:table!important;width:100%;border-collapse:collapse;margin-bottom:16px;} .article-section thead{display:table-header-group!important;} .article-section tbody{display:table-row-group!important;} .article-section tr{display:table-row!important;} .article-section th{display:table-cell!important;font-weight:bold;border:1px solid #cccccc;padding:8px;text-align:left;} .article-section td{display:table-cell!important;border:1px solid #cccccc;padding:8px;} .article-section caption{caption-side:bottom;font-size:16px;margin-bottom:12px;font-style:italic;color:#808080;} .article-section a:not(.pc-inner),article a:not(.pc-inner){color:#356B99}.pc-cta{color:#356B99!important}

What Are Elastomer Materials, and Why Customize Them? An elastomer is a polymer with high viscoelasticity — it can stretch significantly under force and return to its original shape once the force is removed. A commonly used industry benchmark defines an elastomer as a material that can be stretched to at least twice its original length and, after being held at 100% elongation for five minutes, retracts to within 10% of its original length. This unique property distinguishes elastomers from rigid plastics and makes them indispensable for seals, gaskets, grips, and protective components. The first critical distinction to understand is between thermoplastic elastomers (TPEs) and thermoset elastomers (commonly known as rubber). TPEs melt when heated and can be re-molded, making them ideal for injection molding and overmolding processes. Thermoset elastomers, by contrast, undergo an irreversible curing (vulcanization) process; once set, they cannot be re-melted. Thermosets generally offer superior heat and chemical resistance, while TPEs provide processing efficiency and recyclability. So why bother with custom elastomer materials at all? Standard, off-the-shelf grades are formulated for broad applicability. They rarely satisfy the full set of performance requirements a specific application demands. A standard TPE might have the right hardness but a dull color, insufficient flame retardancy, or poor adhesion to a nylon substrate. When your application requires a specific combination of properties — hardness, color, flame resistance, bonding capability — that standard grades cannot deliver, customization becomes the practical path forward. Understanding the dimensions of customization is the first step toward specifying the right material. Six Dimensions of Custom Elastomer Materials Custom elastomers are not a single product category; they represent a spectrum of possible adjustments. When you request a custom solution, you are asking the supplier to modify one or more of six distinct dimensions. Knowing which dimension applies to your requirement will make your technical discussions far more productive. 1. Base Polymer & Compound Formulation The choice of base polymer sets the performance ceiling for the final material. Natural rubber, chloroprene (CR, Neoprene®), EPDM, silicone, and various TPE block copolymers each offer distinct profiles in terms of chemical resistance, temperature tolerance, and mechanical strength. For instance, chloroprene is recognized for its balanced oil and ozone resistance, while EPDM excels in weather resistance. Custom formulation extends further into the compound: fillers, plasticizers, and crosslinking agents are added in precise ratios to achieve a targeted combination of properties. This is where your supplier's technical expertise truly matters. 2. Hardness (Shore A/D) Hardness is often the first parameter buyers ask to adjust. It is measured on the Shore scale — typically Shore A for softer, flexible materials and Shore D for semi-rigid ones. A soft gasket or cushioning pad might require a 30 Shore A material, while a structural bumper or caster wheel could need 70 Shore D. The interaction between hardness and other properties is critical: increasing hardness generally improves compression set resistance (the ability to bounce back after being compressed) but reduces flexibility and sealing capability at low pressures. Your supplier should be able to dial in a specific durometer without compromising the material's elastic recovery. 3. Color & Aesthetics Functional components often have aesthetic requirements. Consumer electronics, power tools, and automotive interiors demand specific colors — from precise Pantone matches to subtle translucent effects. Custom color matching involves adding masterbatches or pigments to the base compound. Achieving a specific color, especially a translucent one, requires careful selection of base resin clarity and pigment loading levels. If your product is visible to end users, color customization is a straightforward but essential dimension to specify. 4. Functional Additives (Flame Retardancy, Conductivity, Low Odor) This is the most technically demanding dimension of custom elastomer materials, and it is where a supplier's raw material expertise becomes an advantage. Functional additives can fundamentally alter how the material behaves in a fire, electrostatically, or in a confined space. Flame retardancy is achieved by incorporating flame retardant additives into the compound. Conductive TPEs, which dissipate static charge, are used in electronics handling and explosion-prone environments. Low-odor grades are specified for automotive cabins where volatile organic compounds (VOCs) are regulated. Each functional modification requires a careful balance between the additive loading and the material's mechanical integrity. 5. Bonding Performance (Overmolding) Many products are manufactured via overmolding — molding a soft elastomer layer directly onto a rigid plastic or metal substrate. This requires a chemical bond between the two materials. Unmodified elastomers typically will not adhere to polypropylene (PP), nylon (PA), or other polar plastics. Custom formulations address this by incorporating adhesion promoters or selecting compatible base polymers. The result is a durable, two-material component where the soft-touch grip will not peel off the rigid handle. 6. Form & Supply Format Finally, customization extends to the physical form in which you receive the material. Pellets are standard for injection molding. Sheets are used for cutting gaskets or die-cut shapes. Masterbatch concentrates allow you to dilute the additive package downstream in your own processing. Placing the order in the correct form can impact your inventory management, color consistency, and handling efficiency, so it is worth confirming the supply format when specifying a custom elastomer. Custom Elastomer Materials for Overmolding: A Closer Look Overmolding deserves special attention because it places four simultaneous demands on an elastomer: adhesion to the substrate, heat resistance during molding, adequate melt flow to fill thin sections, and the finished grip feel. A classic challenge is a soft-touch handle over a PP body. The TPE must be chemically compatible with PP to achieve a strong bond. In contrast, overmolding onto nylon requires a higher molding temperature, which means the elastomer must withstand elevated processing heat without degrading. Custom formulations address these issues by adjusting the polymer base and adhesion promoter system, preventing common defects like peeling, delamination, or flash. If you are working on an overmolded component, specifying a custom grade designed for your specific substrate is critical. For example, PP overmolding TPE grades are tailored for polypropylene substrates, whereas solutions for engineering plastics require a different approach. Flame Retardant Custom Elastomers: When Safety Meets Flexibility Unmodified elastomers are organic materials and, as such, are inherently flammable. In applications for household appliances, automotive interiors, or electronic device housings, they must meet stringent flammability standards. This is achieved through flame-retardant modification — the inclusion of flame retardant additives in the compound. The type of flame retardant selected has a direct impact on the environment and the final material's mechanical properties. Halogenated flame retardants are highly effective but raise environmental and toxicity concerns. As an alternative, environmentally friendly flame retardants such as magnesium hydroxide and alumina trihydrate (ATH) provide flame retardancy with a cleaner regulatory profile. However, these inorganic additives are typically required in high loadings, which can stiffen the material and reduce its elastomeric "feel." This is precisely where custom formulation expertise becomes valuable: the supplier must balance the filler system to achieve the required flame retardant level while preserving as much flexibility and softness as possible. A custom elastomer can therefore meet both safety standards and the tactile requirements of the end product. Always confirm the specific grade's certification and test data with the supplier to ensure it aligns with your industry's regulatory demands. How to Evaluate a Custom Elastomer Supplier Choosing the right partner for custom elastomer materials is as important as specifying the correct properties. Not all suppliers who claim to offer customization have the in-house capability to execute it. Independent compounding ability: Does the supplier have their own formulation and mixing capacity, or are they merely a distributor of standard grades? A true partner can adjust the recipe based on your performance feedback. Application testing laboratory: Can they verify performance claims in-house, or do they outsource all testing? Access to our application testing laboratory, for example, means that flame retardancy, bond strength, and aging tests can be iterated alongside the sample development phase. Technical support: Does the supplier provide application engineering advice? This is essential for troubleshooting overmolding issues like adhesion failure or for interpreting test results and translating them into formulation adjustments. MOQ flexibility: Production-scale minimum order quantities are common, but a flexible supplier should offer smaller batch quantities for prototype and pilot phases, allowing you to validate before scaling up. Compliance documentation: In regulated industries, full disclosure of material data sheets, safety data sheets, and compliance declarations is non-negotiable. The supplier should proactively provide documentation without you having to chase it. The Custom Elastomer Development Process: From Inquiry to Production Understanding the development timeline helps you plan your project. A typical custom elastomer development journey follows a structured path. Needs communication: You describe the application, the target performance metrics (hardness, flame retardancy, etc.), and any end-use constraints. The supplier assesses feasibility. Technical assessment: The supplier recommends a preliminary base polymer and additive package, outlining potential risks and trade-offs. Sample development & testing: The supplier produces lab-scale samples. This is where in-house testing facilities are invaluable; samples are tested for the specified properties and iterative improvements are made. Pilot run & adjustment: Once samples pass initial checks, a pilot batch is often processed on production-scale equipment to validate manufacturability and consistency. Mass production & support: After approval, the supplier moves to full production, accompanied by ongoing quality control and technical support. At each step, you should receive transparent communication about success, risks, and required adjustments. Conclusion Custom elastomer materials are the solution when standard products cannot bridge the gap between performance demands and processing requirements. From adjusting hardness and color to engineering flame retardancy and substrate-specific adhesion, customization covers a wide spectrum of development possibilities. The key to a successful project lies in clearly articulating your application's performance requirements, understanding which dimension of customization applies, and selecting a supplier with genuine compounding expertise and robust testing capabilities. Take the time to document your target properties — including flame retardant needs and the substrate material if you are overmolding — and bring that specification sheet to your supplier conversations. Ready to discuss your custom elastomer requirements? Start by outlining your project's key performance constraints and sharing them with your materials partner. .article-section table{display: table!important;} .article-section thead{display: table-header-group!important;} .article-section tbody{display: table-row-group!important;} .article-section tr{display: table-row!important;} .article-section th{display: table-cell!important;} .article-section td{display: table-cell!important;} .article-section caption{caption-side:bottom;font-size:16px;margin-bottom:12px;font-style:italic;color:#808080;} .article-section th{font-weight:bold;border:1px solid #cccccc;padding:8px;} .article-section td{border:1px solid #cccccc;padding:8px;} .article-section ol{margin-bottom:12px;list-style-type:decimal;list-style-position:inside;padding-left:0;} .article-section ul{margin-bottom:12px;list-style-type:disc;list-style-position:inside;} .article-section li{list-style:inherit;font-size:16px;margin-bottom:6px;} .article-section h2{font-size:22px;font-weight:bold;text-align:left;margin-bottom:12px!important;} .article-section h3{font-size:16px;font-weight:bold;text-align:left;margin-bottom:12px;} .article-section p{font-size:16px!important;margin-bottom:12px;} .article-section a:not(.pc-inner),article a:not(.pc-inner){color:#356B99}.pc-cta{color:#356B99!important}

With the independently developed advanced chemical synthesis technology, we have achieved a comprehensive breakthrough in the three core performances of purity, particle size, and dispersion, providing a new domestic alternative option for high-end electronics, new energy, engineering plastics, and other fields, and breaking the long-term monopoly of foreign high-end products. As the core material for halogen-free flame retardants and functional fillers, the purity, particle size, and stability of magnesium hydroxide directly determine the safety and service life of high-end products. The traditional physical method of magnesium hydroxide is limited by raw materials and processes, presenting problems such as insufficient purity (≤95%), high content of impurities (iron, silicon, chloride ions), wide particle size distribution (10-50 μm), and easy agglomeration, which cannot meet the strict requirements of scenarios such as electronic packaging, thin-walled cables, and new energy vehicles. The R&D team has gone through years of technical research and development, innovatively adopting the liquid-phase precipitation + multi-stage purification + crystal plane control chemical method process, successfully developing ZF-21 ultra-fine high-purity magnesium hydroxide, achieving a leapfrog improvement in key performance. Core performance: Ultimate indicators, leading the industryZF-21 magnesium hydroxide, with cutting-edge chemical technology, builds "high purity, ultra-fine, high stability, and easy dispersion" four core advantages. The key indicators reach the international advanced level:Ultra-high purity: Purity is stable ≥ 99%, magnetic impurities such as iron, silicon ≤ 5 ppm, alkali metals (Na, K) ≤ 10 ppm, chlorine ions approaching zero, eliminating the risk of corrosion of precision circuits, and meeting the strict standards of electronic grade. Ultra-fine particle size: The average particle size is controlled at 200-500 nm, with a narrow particle size distribution, presenting a regular hexagonal plate-like structure, excellent single crystal dispersion, and effectively solving the problem of agglomeration. High stability: Decomposition temperature is as high as 340℃, far exceeding that of magnesium hydroxide (200℃), meeting the requirements of high-temperature processing of engineering plastics (280-320℃), with both thermal stability and flame retardancy fully satisfied. Strong compatibility: Customizable surface modification treatments such as stearic acid and silane, with a coating rate of over 99%, excellent compatibility with high-molecular materials such as epoxy resin, polyolefin, and rubber, and efficient flame retardancy with low addition amount, while retaining the mechanical properties of the substrate. Process innovation: Green manufacturing, strict quality controlFrom raw materials to finished products, the entire process is closed-loop controlled: Select high-grade magnesium salt raw materials, remove heavy metal impurities through multiple stages of filtration; Precisely control the reaction temperature, pH value and stirring rate in a constant temperature sealed reactor to achieve micrometer-level control of crystal growth; Combine ultra-pure water washing, low-temperature vacuum drying and sterile grading processes, with no pollutant emissions throughout the process, in line with EU REACH certification and domestic environmental protection standards. The company is equipped with a thousand-grade clean production workshop and a fully automatic production line. Relying on 15 years of research and production experience of magnesium salt materials, it has established a complete process quality control system from raw material selection, reaction synthesis, purification modification to finished product testing, and each batch of products is tested by precise equipment such as laser particle size analyzer and ICP mass spectrometer to ensure stable and consistent performance, and can be scaled up for mass production and supply.