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China Suppliers of OEM and ODM Silicone Special Shaped Tube or Strip Factory for Sealing and Insulation Solutions
Product Characteristics
-60°C to 250°C Operating Range
Short-term up to 300°C
ASTM D573 Certified
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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.
Superior Physical Mechanical Properties
Shore Hardness 20–80A
Outdoor Lifespan >10 Years
1000-hr Ozone Aging Passed
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◎ Resilience & Compression Set: Shore hardness range 20–80A; ≤15% permanent deformation at 50% compression (ASTM D395), enabling repeated compression cycles.
◎ Tear & Abrasion Resistance: Tear strength ≥25 kN/m (ASTM D624); wear volume ≤0.05 cm³ (Taber test), suited for dynamic sealing in conveyor systems.
◎ Ozone & UV Resistance: Passes 1000-hour ozone aging (50pphm/40°C) and 2000-hour QUV accelerated aging; outdoor lifespan >10 years.
Environmental & Safety Compliance
RoHS 2.0 & REACH SVHC
FDA 21 CFR 177.2600
ISO 10993-5 Biocompatible
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◎ International Certifications: RoHS 2.0, REACH SVHC, FDA 21 CFR 177.2600 (food contact), and EU EN71-3 (toy safety).
◎ Biocompatibility: Meets ISO 10993-5 cytotoxicity standards for medical applications (e.g., ventilator seals).
◎ Hazard-Free: No detectable phthalates, PAHs, or heavy metals; safe for infant products.
Electrical Insulation & Sealing Performance
UL94 V0 Flame Retardancy
IP68 Waterproof Rating
≥20 kV/mm Dielectric Strength
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◎ Insulation Grade: Volume resistivity ≥1×10¹⁴ Ω·cm; dielectric strength ≥20 kV/mm; UL94 V0 flame retardancy.
◎ Sealing Reliability: Helium leak rate ≤0.01 cm³/min; IP68 waterproof rating (1m depth/30min), suitable for submersible devices.
◎ Chemical Resistance: Tolerates weak acids (pH≥3), weak bases (pH≤11), and alcohols; incompatible with strong acids/bases or organic solvents.
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.
Make a Free Consultant
Frequently Asked Questions
Q
What is the maximum operating temperature of your silicone products?
Our silicone products are designed for long-term stable performance from -60°C to 250°C, with short-term exposure tolerance up to 300°C. This makes them suitable for demanding applications such as automotive engine compartments, turbocharger hoses, and high-temperature oven seals.
Q
Are your silicone products certified for food contact and medical use?
Yes. Our products comply with FDA 21 CFR 177.2600 for food contact applications and meet ISO 10993-5 cytotoxicity standards for medical use, including ventilator seals and dialysis machine components. They also carry RoHS 2.0, REACH SVHC, and EU EN71-3 certifications.
Q
What customization options are available for cross-sectional profiles?
We support a wide range of cross-sectional designs including rectangular, trapezoidal, and hollow profiles, all manufactured with ±0.1mm tolerance for precision assembly. Additional options include adhesive backing (3M 467MP), foam processing with closed-cell structure, textured surfaces, and Pantone color matching with laser-engraved traceability markings.
Q
What is the waterproofing and sealing performance of your products?
Our silicone strips and tubes achieve an IP68 waterproof rating (1m depth for 30 minutes), making them ideal for submersible devices and EV battery systems. The helium leak rate is ≤0.01 cm³/min, ensuring highly reliable sealing in critical applications such as 5G base stations and industrial hydraulic systems.
Q
Do you provide samples and what is the lead time for prototypes?
We offer free samples for first-time clients. From the receipt of 3D drawings, our standard prototype turnaround time is 5–7 business days. All samples are accompanied by SGS full-test reports covering physical properties, chemical safety, and aging performance.
Q
How eco-friendly is your silicone manufacturing process?
Our manufacturing process is fully solvent-free with VOC emissions kept below 50 mg/m³, and we hold ISO 14001 environmental management certification. All silicone materials used are 100% recyclable in compliance with the EU End-of-Life Vehicles (ELV) directive, supporting a low-carbon and sustainable production model.