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Custom Silicone Special Shaped Tubes and Strips - China Factory Suppliers for Sealing and Insulation
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.
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.
◎ 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
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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
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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.
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Frequently Asked Questions
Our silicone rubber products offer long-term stable performance from -60°C to 250°C, with short-term exposure tolerance up to 300°C. They remain flexible at cryogenic temperatures, preventing brittleness — making them suitable for automotive engine compartments, high-temperature ovens, and polar expedition equipment.
Yes. Our silicone products comply with FDA 21 CFR 177.2600 for food contact applications and meet ISO 10993-5 cytotoxicity standards for medical uses such as ventilator seals and dialysis machine components. They are also RoHS 2.0 and REACH SVHC certified, free from phthalates, PAHs, and heavy metals.
Absolutely. We support a wide range of cross-sectional designs including rectangular, trapezoidal, and hollow profiles, with ±0.1mm dimensional tolerance. Custom Pantone color matching, laser-engraved logos, adhesive backing (3M 467MP), textured surfaces, and foam processing are all available to meet your specific application requirements.
Our silicone sealing strips achieve an IP68 waterproof rating (1m depth for 30 minutes), with a helium leak rate ≤0.01 cm³/min. They are well-suited for submersible devices, EV battery waterproofing (IP67), and 5G base station sealing against humidity and salt spray.
We offer free samples for first-time clients. From 3D drawings to finished prototypes, our standard turnaround time is 5–7 business days. Full SGS test reports covering physical properties, chemical safety, and aging performance are available upon request.
Our silicone products are engineered for exceptional outdoor durability. They pass 1000-hour ozone aging tests at 50pphm/40°C and 2000-hour QUV accelerated weathering tests. Expected outdoor service life exceeds 10 years, making them ideal for solar panel framing, outdoor LED installations, and architectural sealing applications.