Specialized in PE, PVC, TPE, TPU and Low Smoke Zero Halogen (LSZH) wire and cable compound and materials.
In high-rise buildings, subway tunnels, new energy power stations and industrial complex scenarios, the fire safety of wires and cables is directly related to life and property and system reliability.
YINSU Flame Retardant Company provides customized flame retardant solutions for global customers, covering PE (polyethylene), PVC (polyvinyl chloride), TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane) and LSZH (low smoke and halogen free) wire and cable systems to meet all safety requirements, ranging from UL94 V-0 flame retardant certification to EN 45545 fire protection for rail transportation and IEC 60754 low smoke and halogen free toxicity. All-round safety requirements.
Material Common Use Typical FR Type YINSU Flame Retardant Item No.
PE HDPE, LDPE, LLDPE, Red phosphorus, halogen free FR, PRP-950X, PE-XT-20, YS-F22B, MCA-B
Cross-linked PE cables, Bromine antimony masterbatch MDH, ATH
Plastic insulated cables.
PVC PVC &Plastic insulated power cables, T3 / ATO alternatives T3, T30
Aluminum stranded wires,
Prefabricated branch cables.
TPE Insulated wires, flexible cables Organic phosphorus YS-F22B, YS-9003
Shielded insulated cables
TPU Special purpose cables Organic phosphorus YS-F22B, YS-9003
Power cables for frequency converters.
Others Welcome to consult more details.
Flame-retardant PVC intended for export must comply with various regulations, including the EU’s REACH (SVHC screening + CPR fire safety requirements), California Proposition 65 (limit of 25 ppm per substance), and Southeast Asian chemical registration requirements. Since copper wires come into contact with cables, whereas pipes do not, the paths to compliance differ significantly. YinSu Flame Retardant offers export compliance solutions tailored to specific product types and markets, thereby reducing the risk associated with formulation adjustments.
PVC cable compounds still account for 38.7% of the global market (approximately $7.07 billion), while LSZH materials are 30–50% more expensive and require equipment upgrades. GB/T 19666 specifies that low-smoke, halogen-free cables must have a smoke density and light transmittance of ≥60%, a pH of ≥4.3, and a conductivity of ≤10 µs/mm. For requirements related to smoke density and corrosivity, upgrading to flame-retardant PVC (replacing antimony trioxide with red phosphorus, resulting in a cost increase of only 8–12%) is a more rational choice.
Antimony prices have completed a V-shaped bottoming-out and rebound, with No. 1 antimony ingots rising from 90,000 yuan per metric ton to 100,000 yuan per metric ton, while antimony trioxide has risen in tandem. Refineries are becoming increasingly reluctant to sell, leading to a sharp decline in low-priced supply. Yinsu Flame Retardants offers antimony-free and low-antimony solutions, such as the composite antimony substitute FR-03 and the magnesium-aluminum layered flame retardant HAM-300V, to mitigate the impact of raw material price fluctuations on formulation costs.
Yinsu flame-retardant, ceramicized ablation-resistant agents YS-TCG5 and YS-TCG6 are specifically designed for high-temperature vulcanized silicone rubber and liquid silicone rubber systems. Upon exposure to fire, they rapidly form a dense ceramic layer that withstands ablation from flames exceeding 1,000°C for 30 minutes without burning through. They are widely used in fire-resistant cables, new energy battery protection, and architectural fire-resistant seals, among other applications. These products comply with RoHS and REACH environmental requirements and contribute to the advancement of high-end fire-resistant materials.
The manufacturing process for ceramicized silicone rubber cables encompasses three core stages: vulcanization, extrusion, and curing. Temperature control, mold selection, and curing parameters at each stage directly impact the fire resistance and quality consistency of the finished product. This article systematically outlines the key process considerations and practical parameters for the production of ceramicized silicone rubber cables, providing cable engineers with a practical process guide to help avoid common issues such as rough extrusion surfaces and air bubbles.