In food processing, dairy production, beverage filling, bakery machinery and commercial catering equipment, pipeline insulation sleeves must directly contact hot steam, edible oil, fruit acid and high-temperature cleaning fluid, which puts forward strict requirements on material food safety, high temperature resistance and easy sanitation management. Food Grade Silicone Sponge Tube is a hygienic flexible tubular thermal insulation material developed for food contact scenes. It adopts pure platinum cured food silicone and closed-cell foaming structure, integrating anti-scald heat preservation, soft buffer and food safe performance. Tengye manufactures premium food grade silicone sponge tubes in dust-free clean workshops, providing odorless, non-precipitation thermal insulation protection for all food production pipelines and catering hot liquid pipes.
Food-Grade Platinum Silicone Raw Material & Clean Foaming Extrusion Process
Our food grade silicone sponge tube uses imported pure food-contact platinum silicone raw materials, free of plasticizer, heavy metal, volatile odor and harmful precipitates, formula strictly free of toxic additives, fully compliant with global food contact standards. All extrusion and foaming processes are completed in dust-free food-grade workshops, adopting integrated closed-cell one-step vulcanization foaming craft, forming uniform fine honeycomb pores inside tube wall, smooth compact inner and outer surfaces without mold release agent residue, no secondary pollution to food liquid, steam and raw materials. Foaming density can be adjusted to balance soft wrapping and thermal insulation efficiency.
This hygienic silicone sponge tube owns ultra-wide operating temperature range of -60℃ to 230℃, keeps stable softness and elasticity under repeated high-temperature steam sterilization, boiling disinfection and cold-hot circulation, no hardening, shrinkage or peculiar smell precipitation. It has excellent resistance to edible oil, fruit acid, vinegar and alkaline food detergent, will not swell, crack or dissolve after long-term contact with food media. All products pass FDA 21 CFR 177.2600, EU LFGB, RoHS 2.0 and REACH standards, complete SGS food migration test reports are available for customer inspection and export customs clearance.
Core Performance Advantages for Food Industry Hygienic Protection
Our food grade silicone sponge tube overcomes the defects of ordinary industrial foam tubes and plastic sleeves, with multi-dimensional performance matched to food production and catering hygienic environments:
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Full Food Safety Compliance Pure platinum cured food silicone formula, non-toxic, tasteless, zero heavy metal precipitation, safe for direct contact with milk, juice, edible oil, hot steam and all cold & hot food materials, meets FDA and LFGB international food contact certification standards.
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Efficient Thermal Insulation & Anti-Scald Dense closed-cell pore structure forms stable air thermal barrier, greatly reduces pipeline surface temperature, prevents operator scald during equipment operation and maintenance, cuts heat loss and lowers equipment energy consumption.
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Sterilizable High & Low Temperature Resistance Stable long-term service from -60℃ freezing storage to 230℃ high-temperature steam, supports boiling, autoclave and CIP online cycle cleaning, no deformation or odor release after repeated disinfection cycles.
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Oil, Acid & Alkali Resistance, Easy Sanitizing Low oil absorption surface, resists corrosion of edible grease, fruit acid and food alkaline cleaning agents, easy to wipe and flush clean, no grease residue and mildew growth after long-term production use.
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Low Compression Set & Flexible Bending Compression set ≤5%, no permanent deformation after long-term clamping and wrapping; soft texture can be arbitrarily bent to fit complex pipeline layout of food processing machines.
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Mildew & Aging Resistant Not easy to breed mold in humid kitchen and food workshop environment, excellent UV and cold-hot cycle aging resistance, long service life and low replacement frequency.
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Smooth Surface for Sanitation Control Smooth tube inner and outer walls, not easy to adhere food residue, convenient daily cleaning and disinfection, effectively reduces bacterial breeding risks on food production lines.
Main Application Scenarios
Our food grade silicone sponge tube is widely applied on all food production and catering equipment pipelines requiring food contact safety, heat preservation and anti-scald protection:
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Beverage & Dairy Processing Equipment Thermal insulation anti-scald wrapping for milk conveying pipelines, fruit juice filling steam pipes, yogurt fermentation equipment circulation tubes and dairy sterilization hot water pipelines.
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Bakery & Food Processing Machinery Heat barrier protection for oven steam pipes, baking machine hot oil pipelines, noodle cooking hot water tubes and food high-temperature sterilization equipment pipelines.
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Commercial Catering Kitchen Equipment Anti-scald insulation sleeves for coffee machine hot water pipes, steam oven pipelines, commercial water boiler hot liquid tubes and buffet heating equipment circulation pipes.
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Cold Drink & Fresh-Keeping Equipment Constant temperature insulation sleeves for cold drink machine pipelines, refrigerated liquid conveying tubes and low-temperature food circulation pipelines, avoid surface condensation and frost formation.
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Small Household & Commercial Food Appliances Safe thermal insulation tubes for milk makers, fruit juicers, commercial food blenders and small food filling equipment heating pipelines.
Custom OEM/ODM Service
We provide comprehensive personalized customization solutions to match diversified pipeline sizes and food safety performance demands of different food equipment, supporting small-batch trial production and continuous mass supply:
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Size Specification Customization Customize inner diameter, outer diameter, wall thickness, total length and food-safe colors (translucent, milky white); support ultra-thin and thick wall special size extrusion per customer drawings or physical samples.
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Formula Performance Tuning Adjust foaming density, softness and oil resistance formula according to different food media; can strengthen anti-mold and repeated high-temperature sterilization resistance for long-cycle disinfection production lines.
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Post-Processing Customization Support fixed-length cutting, segmented opening, food-grade single-sided adhesive backing and surface polishing treatment to meet automatic assembly demands of food equipment production lines.
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Rapid Sampling & Stable Delivery Deliver customized samples within 7-12 days for food safety migration test and equipment pipeline matching test, complete quality traceability system to guarantee consistent batch quality and on-time delivery.
Precautions for Use
To retain food safety, thermal insulation and anti-aging performance of food grade silicone sponge tube and extend service life, please follow standardized operation specifications during installation, use and storage:
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Before installation, thoroughly clean the wrapped pipeline surface and tube inner wall, wipe off dust, oil and impurities to avoid contaminating food raw materials during production operation.
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Control stretching amplitude during installation, avoid excessive pulling to prevent tube wall pore damage and reduced thermal insulation efficiency; prevent sharp metal scratches piercing tube body.
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Reasonably control compression ratio during assembly, generally 25%-40%, long-term over-compression will cause permanent deformation and lose heat preservation buffering performance.
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Regularly clean the tube with food alkaline detergent and hot water after long-term contact with edible oil to remove grease residue and prevent mildew growth.
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Store products in cool, dry and dust-free clean warehouse before installation, keep away from industrial corrosive chemicals and strong sunlight to avoid premature aging and safety index decline.
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Select corresponding wall thickness and density grade according to actual medium temperature, food type and daily disinfection frequency to match food production safety standards.
Strict Quality Control System
Adhering to the management tenet of "food safety first, quality supreme", we implement full-process closed quality control for food grade silicone sponge tubes from raw material feeding to finished product delivery:
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Raw Material Inspection 100% full inspection of all food-grade platinum silicone raw materials, strictly test heavy metal precipitation, volatile substances and food contact migration indicators, unqualified raw materials are prohibited from entering production workshops.
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In-Process Monitoring All foaming and extrusion processes are operated in dust-free food-grade workshops, real-time control foaming ratio, extrusion temperature and dimensional tolerance to ensure uniform tube wall pores, smooth surface and no impurity defects.
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Finished Product Comprehensive Testing Conduct food migration safety test, high-low temperature cycle test, steam sterilization aging test, oil resistance and compression rebound test for each batch, provide complete food certification and full set of test reports for export verification.
Tengye: Your Trusted Food-Grade Silicone Sponge Tube Partner
At Tengye, we focus on R&D, production and customized service of food-safe silicone foamed products. Relying on dust-free food-grade production workshops, mature clean platinum curing foaming extrusion technology and strict food safety testing standards, we supply odorless, long-lasting thermal insulation pipeline solutions for global food processing, beverage and commercial catering equipment manufacturers. We strictly comply with international food contact material specifications to eliminate food safety risks for all customers. Contact us today to obtain free customized samples, complete food safety certification documents and exclusive mass production quotation!
