Our food grade silicone foam tube is high-purity sanitary flexible tubing exclusively developed for food processing, beverage production, catering kitchen appliances, water purification equipment and food sterilization machinery. It is manufactured via platinum vulcanization and precision closed-cell extrusion foaming, adopting 100% food-safe silicone raw materials and non-toxic food-grade foaming agents without peroxide residues or volatile precipitates. Fully compliant with FDA 21 CFR 177.2600
Our food grade silicone foam tube is high-purity sanitary flexible tubing exclusively developed for food processing, beverage production, catering kitchen appliances, water purification equipment and food sterilization machinery. It is manufactured via platinum vulcanization and precision closed-cell extrusion foaming, adopting 100% food-safe silicone raw materials and non-toxic food-grade foaming agents without peroxide residues or volatile precipitates. Fully compliant with FDA 21 CFR 177.2600, LFGB, GB 4806.11, RoHS and REACH standards, the tubing is odorless, tasteless and zero substance migration, safe for direct contact with drinking water, dairy, juice, edible oil and food raw materials. It integrates low thermal conductivity thermal insulation, anti-scald, shock absorption, waterproof sealing and optional UL94 V-0 flame retardant functions, providing long-term hygienic protection for food hot medium pipelines, steam circulation tubes and equipment wiring harnesses.
Core Performance & Structural Advantages
Equipped with uniform fine closed-cell micropore structure, smooth tube inner & outer walls, consistent wall thickness and ultra-high soft resilience, this foam silicone tube fits tightly on various pipelines without shedding foam scraps, foam powder or scratching matched metal/plastic parts. It eliminates core defects of ordinary foam tubes such as peculiar odor, harmful precipitation, easy mildew and poor high-temperature stability, with targeted food-grade sanitary performance:
- Strict Food-Grade Sanitary Safety, Zero Contamination Risk
Adopts pure platinum-cured food silicone compound, free of BPA, plasticizer, heavy metals and toxic volatile substances. No odor release under boiling steam or long-term high-temperature operation, no flavor absorption or transfer to beverages, milk and food liquids. Passes strict total migration and sensory testing, meets global food contact certification requirements for food export equipment.
- Low Thermal Conductivity Energy-Saving Thermal Insulation & Anti-Scald
Dense closed-cell air interlayer forms stable heat insulation barrier, thermal conductivity ≤0.035W/(m·K), effectively locking pipeline internal heat and cutting heat loss by over 30%. It lowers pipeline surface temperature to prevent staff scald accidents, ideal for hot water, steam, syrup and dairy circulation pipelines. Continuous operating temperature: -60℃ ~ 200℃, instantaneous short-term heat resistance up to 230℃, remains flexible without hardening or decomposition after repeated high-temperature steam sterilization cycles.
- Optional UL94 V-0 Halogen-Free Low-Smoke Flame Retardancy
Customizable food-safe flame retardant formula reaches UL94 V-0 grade; self-extinguishes rapidly after leaving fire source, no molten drips and low smoke emission, avoiding flame spread along food workshop pipelines and improving factory fire safety.
- Closed-Cell Low Water Absorption, Anti-Mildew & Easy Sanitization
Water absorption rate ≤0.5%, fully blocks water vapor, edible oil, fruit acid and weak alkali penetration. Resists grease and food medium corrosion in humid food workshops, hard to breed mold and bacteria. Tolerates repeated high-temperature steam disinfection and food-grade alkaline cleaning without performance degradation, easy to wipe and clean.
- High Resilience Shock Absorption & Noise Reduction
Compression set ≤7%, fast rebound after long-term extrusion without permanent deformation. Absorbs vibration and resonance noise generated by pipeline circulation and equipment operation, buffers collision friction between pipelines and machines, reducing wear of coffee machines, filling lines and water dispenser pipelines.
- Stable Electrical Insulation & Long Service Weather Resistance
Volume resistivity ≥10¹⁴Ω·cm, reliable insulation performance to protect internal wiring harnesses of food equipment. Added with anti-UV and anti-ozone additives, no yellowing, cracking or hardening after 8–10 years of indoor workshop use, matching the service life of food production equipment.
- Precision Customization & Quick On-Site Assembly
Customizable inner diameter, outer diameter, wall thickness, length and transparent/opaque colors as required; 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 of automated food filling machinery.
- Chemically Inert Material Compatibility
No chemical reaction with dairy, wine, fruit juice, edible oil, stainless steel pipelines and plastic accessories, no harmful precipitation to pollute food raw materials or alter product flavor.
Typical Application Scenarios
- Beverage & Dairy Industry: Thermal insulation anti-scald sleeves for milk, juice, beer, syrup transmission pipelines and automated filling equipment
- Catering Kitchen Appliances: Insulation protection for coffee machines, steam ovens, milk tea equipment, water heaters and commercial drinking fountains
- Food Processing Workshop: Steam circulation pipeline heat preservation, sterilization equipment pipeline sleeves and conveyor wiring harness protection
- Water Purification & Liquid Equipment: Constant temperature insulation and shock absorption for pure water, mineral water and hot drinking pipeline systems
- Cold Chain & Refrigeration Equipment: Anti-condensation insulation for refrigerated food transmission and constant temperature preservation pipelines
Precision Manufacturing & Strict Quality Control
Targeting high hygiene and long-term stable operation demands of food production lines, we implement dust-free food-grade production management and multi-dimensional batch testing:
- Food dedicated raw material inspection: All silicone compounds and additives pass FDA/LFGB migration test before mixing and extrusion;
- Closed-cell one-step extrusion foaming process: Ensures uniform micropore distribution, consistent wall thickness and no delamination;
- Full-item performance batch inspection: Each batch undergoes food migration test, high-low temperature cycle test, flame retardant test, water absorption test and anti-mildew microbial test, factory pass rate up to 99.8%.
Precautions
- Select matching inner diameter and wall thickness specifications according to pipeline outer diameter to ensure tight fitting and optimal heat insulation & anti-scald effect;
- Do not violently stretch, twist or pull the tube body during installation, to avoid damaging internal closed-cell structure and attenuating food safety & thermal insulation performance;
- Avoid long-term continuous contact with strong acid, strong alkali and high-concentration corrosive industrial cleaning agents to prevent material aging and migration increase;
- Store in dry, cool and ventilated warehouse, keep away from open flames and high-temperature heat sources, avoid long-term heavy pressure stacking;
- Suitable for conventional food contact & steam sterilization scenarios; do not exceed the rated continuous temperature range for long-term use;
- Regularly wipe and clean the tube surface during equipment operation, inspect appearance; replace timely if aging, cracking or mildew occurs.
