Tengye High‑Temperature Silicone Foam Seal Strip is a high‑performance closed‑cell sealing gasket developed for continuous high‑temperature working environments. Traditional rubber seals tend to harden, crack and lose sealing capacity under long‑term heat exposure. This silicone foam sealing strip solves such pain points perfectly, integrating high‑temperature resistance, reliable sealing, cushioning shock absorption and weather aging resistance. It serves as a core sealing component for industrial ovens, high‑heat cabinets, new‑energy equipment and high‑temperature household appliances.
Premium Silicone Raw Material & Closed‑Cell Extrusion Foaming Craft
Tengye high‑temperature silicone foam seal strip adopts high‑heat‑resistant compound silicone raw material, free of harmful plasticizers and halogens. We apply one‑step continuous extrusion vulcanization foaming technology to form uniform fine honeycomb closed‑cell structure inside the strip. The surface is compact and smooth, no powder dropping, no delamination under repeated compression.
Its stable working temperature covers ‑60℃ to 280℃. It keeps good rebound elasticity and sealing performance under long‑time high‑temperature baking and frequent cold‑hot cycling. With low compression‑set property, it will not lose gasket function after millions of opening‑closing cycles. The material features excellent chemical inertness, resisting oil, weak acid, alkali, UV and ozone aging. All items comply with RoHS 2.0 and REACH environmental standards for global export projects.
Core Performance Advantages
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Outstanding High‑Low Temperature Stability
Maintains softness and sealing integrity under sustained high‑heat condition. No hardening, brittleness or shrinkage in extreme cold and thermal cycling environments, far superior to EPDM, neoprene and ordinary rubber strips.
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Reliable Gap‑Filling Sealing Capacity
Elastic foam body fits uneven assembly gaps tightly. Effectively blocks hot air, cold wind, dust, moisture and smoke, realizing airtight and watertight sealing for equipment housings.
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Low Compression Set & Long Service Lifespan
Excellent rebound performance after long‑term squeezing. Hardly generates permanent deformation under sustained clamping, greatly lowering seal replacement frequency and maintenance cost.
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Shock‑Absorbing & Noise‑Reduction Function
Absorbs mechanical vibration and impact between metal contact surfaces, reduces operating noise and avoids metal‑to‑metal friction damage for cabinet doors and hatch covers.
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Eco‑Friendly & Safe Formula
Zero peculiar smell, no toxic volatile substances even under high‑temperature operation. Optional halogen‑free flame‑retardant grade achieves self‑extinguishing performance with low smoke output.
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Strong Weather & Chemical Resistance
Resists ultraviolet ray, ozone, industrial oil and weak corrosive medium. Stable performance for both indoor equipment and outdoor high‑temperature application scenarios.
Main Application Fields
Tengye high‑temperature silicone foam seal strip is widely used in multiple high‑heat sealing scenarios:
- Industrial High‑Temperature Equipment: Sealing for industrial ovens, drying cabinets, heat treatment furnaces and thermal circulation equipment doors.
- New‑Energy Industry: Gap sealing for energy‑storage cabinet housings, battery modules and thermal management assemblies.
- Heating Household Appliances: Gaskets for ovens, steam‑powered kitchen machines and high‑temperature disinfection devices.
- Electrical & Enclosure Industry: Dust‑proof, heat‑insulating sealing for high‑voltage electrical cabinets, control boxes and communication equipment.
- Special Machinery & Transportation: Heat‑resistant sealing for heating‑type mechanical housings and vehicle high‑temperature compartments.
Tengye OEM & ODM Customization Service
We provide full‑set customization for high‑temperature silicone foam seal strip to match diverse installation and working‑condition requirements:
- Custom cross‑section profiles: square, rectangular, D‑shape, P‑shape and special‑shaped sections
- Adjustable thickness, width, length, foam density and hardness
- Formula upgrade: enhanced high‑temperature grade, halogen‑free flame retardant, anti‑static modification
- Secondary processing: fixed‑length cutting, die‑cutting, self‑adhesive tape lamination
- Support small‑batch trial production and large‑volume stable mass supply
Installation & Storage Guidelines
- Clean the mating mounting surface thoroughly, keep it dry and free of burrs before installation.
- Avoid over‑stretching during mounting; maintain reasonable compression ratio between 20%‑30% for optimal sealing and service life.
- Prevent sharp objects scratching the foam surface to avoid damaging closed‑cell structure.
- Store products in cool, dry and ventilated place; keep away from heat sources, corrosive chemicals and long‑term direct sunlight.
Conclusion
Tengye high‑temperature silicone foam seal strip is a reliable high‑heat sealing solution combining heat resistance, excellent resilience and environmental compliance. It overcomes aging and sealing‑failure defects of conventional rubber sealing strips under high‑temperature conditions. Widely deployed in industrial heating machinery, new‑energy cabinets and high‑temperature household appliances. Contact Tengye to get free samples and customized sealing proposals for your projects.
