Silicone Flame Retardant, UL94 V0 flame retardant

Pain Points

Many compounding factories, silicone product manufacturers and cable processors often encounter troublesome problems when using ordinary flame retardants. Halogenated flame retardants produce dense, toxic smoke during combustion and fail to meet overseas environmental standards. Some common halogen-free flame retardants make materials brittle after addition, resulting in sharp drops in tensile strength and elongation at break, which ruins the mechanical properties of finished products. During high-temperature extrusion and molding, the flame retardant decomposes easily, causing blooming, migration, mold fouling and blockage, leading to low production yield. The flame rating is unstable; it passes on thick specimens but fails UL94 V-0 on thin parts. Many flame retardants cannot pass REACH and RoHS tests, resulting in failed third-party inspections, delayed shipments and even lost orders, pushing up production costs significantly.

Solution

Our halogen-free phosphorus-nitrogen flame retardant is an eco-friendly flame retardant specially developed for polymer modification. It features excellent thermal stability to fit high-temperature processing and belongs to low smoke halogen-free flame retardant. It works at a moderate loading rate, resists migration and blooming, and preserves the original toughness of substrates. It is compatible with silicone, PP, TPE, TPU and engineering plastic compounding. The flame retardant performance is stable, and thin specimens can steadily reach UL94 V-0 with high GWIT. It complies with RoHS and REACH. Halogen-free, low toxicity and low smoke, this UL94 V0 flame retardant is the preferred choice for cables, silicone parts, plastic housings and elastomer components. It helps you avoid compliance risks, stabilize yield and smoothly deliver overseas orders.

Product Specifications

Application Fields

This phosphorus-nitrogen flame retardant is compatible with a wide range of polymer materials: 

✅ Silicone products: fluorosilicone rubber, RTV silicone rubber, silicone gaskets, silicone seals, silicone cable jackets (core application as silicone flame retardant) 

✅ General plastics: modified PP sheets, injection housings, home appliance parts (PP flame retardant) 

✅ Elastomers: TPE & TPU cables, hoses, sealing strips, elastic components (TPE flame retardant, TPU flame retardant) 

✅ Engineering plastics: modified PA, PBT and other plastic parts (engineering plastic flame retardant) 

✅ Wires & cables: insulation and sheathing of low-smoke halogen-free cables 

✅ Others: plastic films, foam materials, electronic insulation parts and all scenarios requiring plastic modification flame retardant

FAQ

Q1: Will this halogen-free flame retardant bloom or migrate? A1: Optimized formula makes it a non-blooming flame retardant. Under recommended loading and proper processing conditions, it rarely migrates or blooms during long-term storage and will not form white powder on the surface. Blooming may occur if over-dosed or used with incompatible substrates. Lab trial is recommended first.

Q2: Can it be mixed directly into silicone? A2: Yes. As a silicone flame retardant, it fits internal mixer and open mill processes for silicone. It has good compatibility with vinyl silicone oil and fumed silica systems and will not affect curing speed. Please run small batch tests to verify curing and mechanical performance.

Q3: Can it reach UL94 V-0? A3: It achieves stable UL94 V-0 at the recommended loading and specimen thickness ≥1.6 mm, qualifying as a standard UL94 V0 flame retardant. Higher loading is required for thinner samples; pre-testing is suggested.

Q4: Is it acceptable for the European market? A4: The product meets RoHS and REACH regulations. It is a eco-friendly flame retardant suitable for exports to the EU. Test reports are available upon request.

Q5: Is the loading rate the same for different substrates? A5: No. Formulation systems for PP, TPE, TPU, silicone and engineering plastics differ greatly. The loading of this plastic modification flame retardant needs separate tuning. We can provide formulation references and recommend pre-sample evaluation.

Q6: What is the maximum processing temperature? Will it decompose? A6: Decomposition temperature ≥280℃. It works for normal extrusion, injection molding and silicone compression molding. Sustained temperature above 280℃ will trigger decomposition and weaken flame retardancy.

Closing CTA

Our reliable halogen-free flame retardant balances flame performance, mechanical retention and export compliance, solving flame retardant challenges for plastic and silicone modification in one stop. Contact us for samples and formulation support. Third-party testing is available.