Our high-temperature resistant braided silicone tubes integrate high-purity heat-resistant silicone’s extreme temperature adaptability with high-strength braided layer reinforcement, engineered for continuous operation in high-heat, high-pressure, and harsh industrial environments. Adopting platinum vulcanization technology and precision braiding processes, the products meet FDA, RoHS, and UL94 standards, providing reliable fluid transfer and protection solutions for automotive, aerospace, indus
Our high-temperature resistant braided silicone tubes integrate high-purity heat-resistant silicone’s extreme temperature adaptability with high-strength braided layer reinforcement, engineered for continuous operation in high-heat, high-pressure, and harsh industrial environments. Adopting platinum vulcanization technology and precision braiding processes, the products meet FDA, RoHS, and UL94 standards, providing reliable fluid transfer and protection solutions for automotive, aerospace, industrial, and medical sectors worldwide.
Core Structure & High-Temperature Performance Advantages
The tube features a two-layer integrated structure: inner layer of high-temperature resistant silicone (modified methyl vinyl silicone or fluorosilicone) and outer layer of high-strength braided reinforcement (nylon, glass fiber, or aramid fiber). This design balances extreme heat resistance with mechanical stability, achieving comprehensive performance superiority:
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Extreme high-temperature tolerance: Standard versions support continuous operation at -60℃ to 250℃, with short-term resistance up to 300℃; fluorosilicone-enhanced versions extend continuous operating temperature to 280℃ (short-term 350℃). After 1000h aging test at 200℃, tensile strength retention ≥90%, compression set ≤12%, and no hardening, cracking, or performance degradation.
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Braided reinforcement for pressure & wear resistance: The outer braided layer forms a dense protective skeleton, enhancing operating pressure to 2.0-4.5MPa and burst pressure ≥12MPa (3x safety margin)—2-3 times higher than non-braided heat-resistant silicone tubes. Glass fiber braiding adds flame retardancy (UL94 V-0 grade, 3-second self-extinguishing), while nylon braiding boosts wear resistance by 45%.
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Superior material stability: Inner silicone layer adopts high-purity modified formula, with low volatility (volatile substances ≤0.3%) and excellent thermal oxidation resistance. It resists ozone, UV radiation, and mild chemical corrosion, avoiding softening, melting, or toxin release under high heat. Fluorosilicone versions further enhance oil resistance, suitable for high-temperature oil transfer scenarios.
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Precise dimensional control & flexibility: Imported dual-screw extruders and custom braiding machines ensure inner diameter (2mm-100mm), outer diameter (5mm-110mm), and wall thickness (1.2mm-5.5mm) with tolerance ±0.1mm. The integrated structure maintains flexibility (10,000+ bending cycles without kinking), adapting to narrow-space installation in high-heat equipment.
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Safety & compliance: Platinum vulcanization process ensures non-toxicity, odorlessness, and low migration, meeting FDA 21 CFR 177.2600 (food grade) and USP Class VI (medical grade) standards. Heavy metal content ≤10mg/kg, suitable for high-temperature food processing and medical sterilization scenarios.
Precision Manufacturing & Strict Quality Control
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Heat-resistant silicone extrusion: Modified silicone raw materials are extruded at 180-200℃, with online temperature monitoring and surface polishing to ensure inner wall smoothness (Ra ≤0.08μm). Raw materials undergo thermal stability testing (1000h at 200℃) before use to eliminate performance risks.
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High-strength braiding: Fibers are braided at constant tension (15-22MPa) with 16-32 spindles, ensuring uniform coverage (braid density ≥90%) and tight bonding with the silicone inner layer. Braiding angle is optimized to balance heat resistance, pressure capacity, and flexibility.
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Post-vulcanization & heat treatment: The composite tube undergoes high-temperature vulcanization (220℃ for 15min) to enhance layer adhesion, followed by thermal aging treatment to stabilize high-temperature performance. Glass fiber braided versions receive anti-corrosion coating to avoid fiber fraying.
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Comprehensive testing: Each batch undergoes 14-item inspections, including high-temperature aging test, burst pressure test, thermal oxidation resistance test, FDA migration test, and dimensional measurement. The outgoing qualified rate reaches 99.8%.
Key Application Scenarios & Technical Verification
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Automotive & New Energy: Used as turbocharger hoses, exhaust system connecting tubes, and battery cooling pipelines. Nylon-braided versions withstand 250℃ continuous high temperature and 3MPa pressure, meeting ISO 11452-2 automotive standards. A new energy vehicle factory extended service life to 3.5 years (4x longer than ordinary heat-resistant tubes).
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Aerospace & Defense: Applied for aircraft engine auxiliary pipelines and high-temperature hydraulic tubes. Fluorosilicone versions operate stably at 280℃, with low outgassing (meeting NASA SP-R-0022A standards), helping a defense contractor pass military equipment audits.
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Industrial & Chemical: Transfers high-temperature steam, hot oil, and acidic/alkaline solutions. Glass fiber-braided versions resist 300℃ short-term high temperature and flame, reducing replacement frequency for a chemical plant by 75%.
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Food & Medical: Used for high-temperature food processing (e.g., hot syrup, edible oil) and medical sterilization equipment pipelines. FDA-certified versions ensure no flavor migration, with a food factory passing LFGB audit smoothly and reducing cleaning time by 50%.
Custom Solutions & Efficient Service
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Multi-dimensional customization: Customize silicone formula (standard heat-resistant/fluorosilicone), braided material (nylon/glass fiber/aramid fiber), temperature grade (250℃/280℃/300℃ short-term), and dimensions (2mm-100mm inner diameter). Optional flame-retardant, anti-static (surface resistance 10⁶-10⁹ Ω), and oil-resistant treatments.
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Functional upgrades: Optional high-temperature resistant quick connectors, sterile packaging (for medical use), and cut-to-length services with chamfered ends. For aerospace scenarios, provide low-outgassing formulations and precision dimensional calibration.
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Fast response & compliance support: Technical consultation and quotation within 24 hours; custom samples (with high-temperature test reports) delivered in 5-7 working days. Monthly production capacity of 45 tons ensures bulk delivery in 10-12 days. Full certification packages (FDA/RoHS/UL94) are provided for client audits.
