In new energy battery boxes, energy storage cabinets, NEV compartments, electrical control enclosures and industrial high-temperature equipment, flange gaps and cabinet panel joints demand fast-installation, long-term stable sealing solutions against dust, moisture, vibration and temperature fluctuation. Self-Adhesive Silicone Foam Seal Strip is a pre-coated adhesive closed-cell silicone foam sealing part, integrating high-strength industrial acrylic adhesive backing, soft compressible foam body and excellent comprehensive weather resistance. It eliminates tedious mechanical fixing or secondary glue coating, realizing one-step quick installation while delivering airtight waterproof, shock absorption and heat insulation effects. Tengye produces high-performance self-adhesive silicone foam seal strips via integrated continuous extrusion foaming and automatic lamination process, providing efficient sealing solutions for all types of equipment cabinets and shell assemblies.
Premium Silicone Foam Material & Adhesive Lamination Production Process
Our self-adhesive silicone foam seal strip adopts imported high-purity silicone raw materials, optional halogen-free low-smoke flame retardant formula, non-toxic and eco-friendly, optimized for long-term cabinet closed high-temperature alternating environments. We adopt one-step closed-cell extrusion foaming to form uniform fine honeycomb pores inside the strip body, smooth compact surface without powder shedding or delamination after long-term repeated compression. High-strength acrylic pressure-sensitive adhesive is fully laminated on one side with release liner, strong adhesion to aluminum alloy, steel, plastic, coating and other cabinet surfaces, no residual glue after disassembly. Foam density, hardness, cross-section shape and adhesive grade can be customized to match customer gap size, temperature and assembly line demands.
This professional self-adhesive silicone foam seal strip features an ultra-wide operating temperature range of -60℃ to 230℃, maintaining stable softness, elasticity and reliable adhesion performance under long-term high-temperature baking, cold-hot cycling and outdoor UV exposure, no hardening, shrinkage, glue failure or elasticity loss after years of service. It boasts outstanding chemical inertness, resisting corrosion from battery electrolyte, engine oil, weak acid and alkaline cleaning agents, as well as superior ozone and weather aging resistance, suitable for indoor and outdoor harsh working conditions. All products fully comply with RoHS 2.0, REACH standards, flame retardant UL 94 V-0 grade optional, complete SGS and Intertek third-party sealing, temperature and adhesion test reports are available for export certification.
Core Performance Advantages Focused on Quick Assembly & Stable Sealing
Aiming at industry pain points of complicated installation, loose sealing and easy falling off of ordinary unbacked sealing strips, our self-adhesive silicone foam seal strip realizes comprehensive performance upgrade, perfectly matching mass production automatic assembly and cabinet maintenance sealing scenes:
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High-Strength Self-Adhesive Backing, Ultra-Easy Installation: Pre-coated industrial acrylic adhesive with PET release liner, simply tear off the liner and paste directly on flange surfaces, no extra screws, rivets or liquid glue required, greatly cutting assembly labor time and improving production line efficiency.
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Airtight Waterproof & Dustproof Barrier: Soft compliant closed-cell foam fits irregular gaps seamlessly, forming a complete airtight sealing layer up to IP67-IP68 protection level, blocking rainwater, moisture, dust and fine particles from entering cabinets to avoid circuit short circuit and metal corrosion.
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Wide High & Low Temperature Stability: Stable long-term service at -60℃~230℃, adhesive and foam structure will not fail under low-temperature cold start and continuous internal high-temperature heat accumulation, sealing performance remains consistent after repeated cold-hot impact cycles.
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Low Compression Set & Long-Lasting Sealing Stability: Compression set ≤5%, no permanent deformation after long-term cabinet door clamping and frequent opening-closing cycles, always fully fills gaps without air leakage or water seepage failure after long-term operation.
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Vibration Absorption & Noise Reduction Buffer: Porous foam structure absorbs driving vibration and equipment operation impact, reducing metal collision noise inside cabinets, preventing loose connection and damage of battery modules and electronic components.
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Optional UL 94 V-0 Flame Retardant Grade: Customizable halogen-free flame retardant formula, self-extinguishes quickly after leaving open flame, no molten dripping or toxic smoke, effectively blocks flame spread for new energy battery safety cabinets.
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Non-Corrosive & Long Service Life: Neutral chemically inert foam body and non-corrosive adhesive, no chemical reaction with aluminum, steel, plastic cabinet shells and circuit boards; strong anti-UV and anti-aging performance, stable comprehensive performance for 8–12 years indoor and outdoor.
Main Application Scenarios Requiring Fast Self-Adhesive Sealing
Our self-adhesive silicone foam seal strip is widely applied on cabinet flange, door cover and panel sealing positions across new energy, automotive, electrical power and industrial equipment industries:
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New Energy Storage Equipment: Self-adhesive sealing for household energy storage cabinets, industrial & commercial container energy storage boxes and battery module outer shells, fast assembly and reliable moisture isolation protection.
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New Energy Vehicle Power Battery Boxes: Door flange self-adhesive sealing strip for passenger cars, commercial vehicles and electric buses, withstand vehicle vibration and long-term alternating temperature environment, simplify battery box assembly process.
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Electrical & Power Control Cabinets: Cabinet door self-adhesive weather sealing for high-voltage distribution boxes, inverter control enclosures and communication base station power cabinets, prevent internal electrical short circuit caused by damp and dust.
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Industrial High-Temperature Equipment Cabinets: Panel gap self-adhesive sealing for oven control cabinets, heating equipment enclosures and hydraulic control boxes, resist long-term internal heat radiation and isolate dust intrusion.
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Outdoor Mobile Equipment: Weatherproof self-adhesive sealing for outdoor photovoltaic power cabinets, mobile energy storage devices and charging pile control boxes, resist long-term rain, sunlight and damp erosion.
Custom OEM/ODM Service
We provide full personalized customization solutions to match diversified cabinet gap sizes, cross-section shapes, adhesive strength and functional grade demands, supporting small-batch R&D trial production and large-scale continuous mass delivery:
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Size & Cross-Section Customization: Customize strip width, thickness, length, cross-section shape (rectangle, D-type, E-type, trapezoid); customizable colors black, gray, white, red per customer drawings or physical cabinet samples.
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Formula & Adhesive Tuning: Adjust foam density and hardness, upgrade flame retardant or high-temperature resistant grade; optional high-temperature silicone adhesive, double-sided adhesive, anti-static treatment and surface wear-resistant upgrade.
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Post-Processing Customization: Support fixed-length cutting, coiled winding, partial liner removal, surface polishing treatment to fit automatic assembly line rapid pasting demands.
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Rapid Sampling & Stable Delivery: Deliver customized samples within 7–12 days for cabinet gap fitting, adhesion and sealing performance testing, complete quality traceability system to guarantee consistent batch quality and on-time delivery.
Precautions for Use
To fully retain adhesion, airtight sealing and shock absorption performance, extend service life and guarantee long-term cabinet protection effect, please follow standardized operation specifications during installation, use and storage:
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Before pasting, thoroughly wipe cabinet flange and contact surfaces to keep dry, smooth and free of oil, dust, burr and rust impurities, to maximize adhesive bonding strength and avoid early peeling.
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Tear off release liner evenly during installation, avoid excessive stretching and sharp metal scratching to prevent damage to internal closed-cell pore structure and attenuation of sealing performance.
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Reasonably control cabinet compression gap, keep compression ratio between 30%–50%, avoid long-term over-compression leading to permanent deformation and loss of tight sealing effect.
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Store finished rolls in cool, dry and ventilated warehouse before installation, keep away from high-temperature heat sources, open flames and corrosive chemicals to prevent adhesive aging and foam performance decline.
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Select corresponding thickness, density, adhesive grade and flame retardant level according to actual cabinet internal operating temperature, surface material and service environment to match required sealing standard.
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Regularly inspect strip adhesion and fitting condition during equipment maintenance, timely replace aged, warped and peeling strips to maintain cabinet waterproof, dustproof and heat insulation protection performance.
Strict Quality Control System
Adhering to the management tenet of "quality first, safety supreme", we implement full-process strict quality control for self-adhesive silicone foam seal strips from raw material feeding, extrusion foaming, adhesive lamination to finished product delivery:
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Raw Material Inspection: 100% full inspection of silicone foam and adhesive raw materials, strictly test temperature resistance, adhesion force, environmental protection indicators and chemical stability, unqualified raw materials are prohibited from entering production lines.
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In-Process Monitoring: Real-time dynamic control of extrusion temperature, foaming ratio, dimensional tolerance and adhesive lamination uniformity, guarantee uniform strip pores, smooth surfaces, consistent cross-section size and no bubbles, wrinkles or incomplete coating defects.
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Finished Product Comprehensive Testing: Conduct adhesion durability test, waterproof dustproof sealing test, high-low temperature cycle aging test, compression rebound test and optional UL flame retardant test for each batch, issue complete certification documents and test reports for customer inspection.
Tengye: Your Trusted Self-Adhesive Silicone Seal Strip Partner
At Tengye, we focus on R&D, production and customized service of high-performance self-adhesive silicone foam seal strips. Relying on mature continuous foaming extrusion and automatic adhesive lamination technology, full-process strict performance testing and professional technical after-sales support, we supply fast-install, airtight and long-lasting cabinet sealing solutions for global new energy, automobile, electrical power and industrial equipment manufacturers. We commit to solving customer core pain points including complicated assembly, cabinet gap air leakage and short seal service life, and build long-term stable win-win cooperative relations. Contact us today for free customized samples, complete certification documents and exclusive mass production quotation!
