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China OEM Suppliers for Silicone Special Shaped Tube or Strip Factory – Custom Sealing Solutions
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Product Characteristics
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◎ Exceptional Temperature Resistance
• Broad Operating Range: Long-term stable performance from -60°C to 250°C; short-term exposure up to 300°C (e.g., automotive engine compartments). Maintains flexibility at cryogenic temperatures, preventing brittleness.
• Thermal Stability: <5% physical property degradation after 72-hour aging at 200°C (ASTM D573), ensuring long-term reliability.
• Applications: Ideal for turbocharger hoses, high-temperature oven seals, and polar expedition equipment.-60°C to 250°C ASTM D573 Short-term up to 300°C
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Superior Physical Mechanical Properties
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◎ Resilience & Compression Set
Shore hardness range 20–80A; ≤15% permanent deformation at 50% compression (ASTM D395), enabling repeated compression cycles.
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◎ Tear & Abrasion Resistance
Tear strength ≥25 kN/m (ASTM D624); wear volume ≤0.05 cm³ (Taber test), suited for dynamic sealing in conveyor systems.
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◎ Ozone & UV Resistance
Passes 1000-hour ozone aging (50pphm/40°C) and 2000-hour QUV accelerated aging; outdoor lifespan >10 years.
Shore 20–80A ASTM D624 Outdoor >10 Years
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Environmental & Safety Compliance
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◎ International Certifications
RoHS 2.0, REACH SVHC, FDA 21 CFR 177.2600 (food contact), and EU EN71-3 (toy safety).
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◎ Biocompatibility
Meets ISO 10993-5 cytotoxicity standards for medical applications (e.g., ventilator seals).
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◎ Hazard-Free
No detectable phthalates, PAHs, or heavy metals; safe for infant products.
RoHS 2.0 FDA 21 CFR ISO 10993-5 EU EN71-3
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Electrical Insulation & Sealing Performance
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◎ Insulation Grade
Volume resistivity ≥1×10¹⁴ Ω·cm; dielectric strength ≥20 kV/mm; UL94 V0 flame retardancy.
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◎ Sealing Reliability
Helium leak rate ≤0.01 cm³/min; IP68 waterproof rating (1m depth/30min), suitable for submersible devices.
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◎ Chemical Resistance
Tolerates weak acids (pH≥3), weak bases (pH≤11), and alcohols; incompatible with strong acids/bases or organic solvents.
UL94 V0 IP68 Waterproof ≥20 kV/mm
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Customization
Customization Capabilities
◎ Cross-Sectional Design: Supports rectangular, trapezoidal, hollow profiles, etc., with ±0.1mm tolerance for precision assembly.
◎ Surface Treatments:
◎ Adhesive Backing: 3M 467MP pressure-sensitive adhesive (peel strength ≥4 N/cm, -40°C to 120°C).
◎ Foam Processing: Closed-cell structure, density 0.3–0.8 g/cm³, ≥90% compression rebound for vibration damping.
◎ Textured Surfaces: Anti-slip patterns or drainage grooves for enhanced functionality.
◎ Color & Identification: Pantone color matching; laser-engraved logos/numbers for traceability.
Application-Specific Solutions
◎ Automotive: Engine bay seals (oil-resistant), EV battery waterproofing (IP67), sunroof guide rails.
◎ Electronics: 5G base station sealing (humidity/salt spray resistance), LED light fixing (UV-resistant), appliance door gaskets (antibacterial).
◎ Industrial: Hydraulic system seals (high-pressure), chemical pipeline liners (acid/alkali-resistant), food machinery (FDA-compliant).
◎ Medical: Ventilator tubing (biocompatible), dialysis machine seals (sterile packaging).
Technical Support & Services
◎ Sample Development: Free samples for first-time clients; 5–7-day turnaround from 3D drawings to prototypes.
◎ Quality Report: SGS full-test reports (physical properties, chemical safety, aging tests).
◎ After-Sales: 12-month warranty; free replacement for non-manufacturing defects; installation videos provided.
Sustainability & Eco-Friendliness
◎ Recyclable Design: 100% material recyclable per EU ELV directive.
◎ Low-Carbon Production: Solvent-free process; VOC emissions <50 mg/m³; ISO 14001 certified.
EU ELV Directive
ISO 14001
VOC <50 mg/m³
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Frequently Asked Questions
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What temperature range can your silicone special shaped tubes and strips withstand?
Our silicone products offer long-term stable performance from -60°C to 250°C, with short-term exposure tolerance up to 300°C. They maintain flexibility at cryogenic temperatures and resist brittleness, making them ideal for demanding environments such as automotive engine compartments and polar expedition equipment.
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Are your silicone products compliant with international safety and environmental standards?
Yes. Our products are certified under RoHS 2.0, REACH SVHC, FDA 21 CFR 177.2600 (food contact), EU EN71-3 (toy safety), and ISO 10993-5 (biocompatibility for medical use). They contain no detectable phthalates, PAHs, or heavy metals, making them safe for use in infant products and medical devices.
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What customization options are available for cross-sectional profiles and surface treatments?
We support a wide range of cross-sectional designs including rectangular, trapezoidal, and hollow profiles with ±0.1mm precision tolerance. Surface treatment options include 3M 467MP adhesive backing, closed-cell foam processing, anti-slip textured surfaces, drainage grooves, and Pantone color matching with laser-engraved logos for traceability.
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What is the waterproof and sealing performance of your silicone strips?
Our silicone sealing products achieve a helium leak rate of ≤0.01 cm³/min and carry an IP68 waterproof rating (1 meter depth for 30 minutes), making them suitable for submersible devices, 5G base stations, and EV battery enclosures. The dielectric strength reaches ≥20 kV/mm with UL94 V0 flame retardancy.
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Do you provide samples, and what is the lead time for custom prototypes?
Yes, we offer free samples for first-time clients. From the submission of 3D drawings to the delivery of prototypes, our standard turnaround is 5–7 business days. We also provide SGS full-test reports covering physical properties, chemical safety, and aging performance to support your qualification process.
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How durable are your silicone products when exposed to outdoor conditions and UV radiation?
Our silicone strips and tubes pass 1000-hour ozone aging tests (50pphm at 40°C) and 2000-hour QUV accelerated UV aging tests. The expected outdoor service life exceeds 10 years, making them well-suited for outdoor enclosures, solar panel seals, LED lighting fixtures, and other long-term exterior applications.