Our thermal insulation foam silicone tube is a single-layer closed-cell flexible tubular material specially developed for pipeline heat preservation, anti-scald, constant temperature maintenance and thermal isolation. It is manufactured from high-purity platinum-vulcanized silicone via continuous precision extrusion foaming, featuring uniform micro closed-cell structure and ultra-low thermal conductivity. Fully compliant with UL94 V-0, RoHS, REACH and industrial safety standards, this tubing int
Our thermal insulation foam silicone tube is a single-layer closed-cell flexible tubular material specially developed for pipeline heat preservation, anti-scald, constant temperature maintenance and thermal isolation. It is manufactured from high-purity platinum-vulcanized silicone via continuous precision extrusion foaming, featuring uniform micro closed-cell structure and ultra-low thermal conductivity. Fully compliant with UL94 V-0, RoHS, REACH and industrial safety standards, this tubing integrates thermal insulation, thermal preservation, flame retardancy, waterproof sealing, shock absorption and electrical insulation. It locks internal pipeline heat, blocks external heat transfer, cuts energy loss, and delivers long-term stable protection for industrial heating pipelines, new energy thermal management pipelines, HVAC refrigeration equipment and electrical wiring harnesses.
Core Performance & Structural Advantages
With dense uniform closed-cell foam structure, smooth inner & outer tube walls, consistent wall thickness and ultra-high soft resilience, this tube fits tightly on various pipelines and wiring harnesses. It is easy to cut, sleeve and bend without shedding foam scraps or scratching matched parts. It solves defects of ordinary rubber tubes and open-cell foam tubes such as severe heat loss, poor constant temperature effect, easy water absorption and rapid aging failure, with targeted superior performance:
- Ultra-Low Thermal Conductivity, Energy-Saving Heat Preservation
The closed-cell micropore structure forms stable air insulation layer, thermal conductivity ≤0.035W/(m·K). It locks internal heat efficiently and blocks outward heat dissipation, greatly reducing heat loss of steam, hot water and heating pipelines, cutting equipment energy consumption by over 30%. It maintains stable constant temperature for refrigeration & constant medium pipelines and effectively prevents surface condensation.
- Wide Temperature Adaptability & Long-Term Thermal Stability
Continuous operating temperature: -60℃ ~ 250℃, instantaneous short-term high-temperature resistance up to 280℃. It remains soft and flexible without embrittlement/cracking under low-temperature freezing; no softening, collapse, deformation or volatile harmful substance release under long-term high-temperature baking. Thermal insulation performance stays unchanged after repeated cold-hot temperature cycles.
- UL94 V-0 Halogen-Free Flame Retardant Safety
Adopts eco-friendly halogen-free flame retardant formula, meets strict UL94 V-0 standard. It self-extinguishes rapidly after leaving fire source, no molten drips and low toxic smoke during combustion, effectively blocking flame spread along pipelines and eliminating fire hazards in high-temperature workshops.
- Closed-Cell Waterproof, Moisture-Proof & Anti-Condensation
Compact fully closed-cell structure with water absorption ≤0.5%, fully isolating rainwater, humid air, oil stains and corrosive gas penetration. It avoids pipeline condensation, metal rust and mold breeding, prevents circuit short circuit and component corrosion caused by moisture, and keeps internal pipelines dry for long-term operation.
- High Resilience Shock Absorption & Noise Reduction
Compression set ≤7%, fast rebound after long-term extrusion without permanent deformation. It absorbs vibration and friction noise generated by pipeline & equipment operation, buffers collision/extrusion between pipelines and equipment, reduces pipeline wear and eliminates resonance noise.
- Stable Electrical Insulation & Weather Resistance
Volume resistivity ≥10¹⁴Ω·cm, reliable insulation to isolate leakage current and electromagnetic interference, protecting high-temperature wiring harnesses and electrical components. Added with anti-UV & anti-ozone additives, it resists outdoor sunlight, wind and rain erosion, no hardening, yellowing or cracking after 8–10 years of service life.
- Precision Customization & Easy On-Site Installation
Customizable inner diameter, outer diameter, wall thickness, length and color; dimensional tolerance controlled within ±0.05mm for tight sleeving fit. Ultra-flexible tube body supports arbitrary cutting and bending, adapts to complex multi-bend pipeline layout and improves assembly efficiency.
- Eco-Friendly & Stable Material Compatibility
Halogen-free, non-toxic, odorless and heavy metal-free, fully compliant with global environmental regulations. Chemically inert with metal pipelines, plastic wires and mechanical accessories, no chemical corrosion or adverse precipitation reactions.
Typical Application Scenarios
- Industrial Heating Pipelines: Heat preservation, anti-scald and energy-saving insulation for steam pipelines, hot water circulation pipes and high-temperature equipment connecting pipes
- New Energy Industry: Thermal insulation & constant temperature protection for NEV thermal management pipelines and energy storage cabinet internal pipelines
- HVAC & Refrigeration Equipment: Anti-condensation thermal preservation for central air-conditioning ventilation pipes, refrigerated constant temperature pipelines and heating equipment
- Electrical & Electronic Equipment: Heat insulation, flame retardant and shock absorption protection for high-temperature wiring harnesses and power distribution pipelines
- Food & Catering Equipment: Anti-scald insulation sleeves for coffee machines, steam ovens, milk tea equipment and beverage filling pipelines
Precision Manufacturing & Strict Quality Control
Focusing on energy-saving thermal preservation and long-term stable operation requirements of pipeline systems, we implement full-process industrial-grade quality management and multi-dimensional batch testing:
- Special thermal insulation raw material screening: Platinum-cured silicone matched with low thermal conductivity and flame retardant additives; all raw materials pass thermal conductivity, high-low temperature cycle and environmental migration tests before production;
- One-step closed-cell extrusion foaming process: Ensures uniform pore distribution, consistent tube wall thickness and no local performance attenuation;
- Full-item performance batch inspection: Each batch undergoes thermal conductivity test, flame retardant test, waterproof test, compression resilience test and UV aging test, factory qualification rate up to 99.8%.
Precautions
- Select matching inner diameter and wall thickness specifications according to pipeline outer diameter and working temperature to ensure close fitting and optimal heat insulation effect;
- Do not violently stretch, twist or pull the tube body during installation, to avoid damaging internal closed-cell structure and attenuating heat insulation performance;
- Avoid long-term direct contact with strong acid, strong alkali and high-concentration corrosive solvents to prevent material aging and performance decline;
- Store in dry, cool and ventilated warehouse, keep away from open flames and high-temperature heat sources, avoid long-term heavy pressure stacking;
- Forbid continuous use beyond the rated temperature range, otherwise heat preservation and flame retardant functions will fail;
- Regularly inspect the tube body during equipment operation; replace timely if aging, cracking or hardening occurs.
