| No. | Physical Property (EN) | Test Method | Value |
|---|---|---|---|
| 1 | Hardness (Shore C) | Type C Durometer | 25±5 |
| 2 | Density (g/cm³) | ASTM D1056 | 0.35±0.1 |
| 3 | Compression Set (%) | ASTM D1056-Test D | <10 (70℃) <20 (100℃) |
| 4 | Tensile Strength (kPa) | ASTM D412 | >400 |
| 5 | Elongation at Break (%) | ASTM D412 | >150 |
| 6 | Flame Retardancy | UL94 Standard | V0-V1-V2 |
| 7 | Toxic Gas Emission Rating | SMC-S00 | Passed |
| 8 | REACH/ROSH/PAHS/Halogen Compliance | / | Qualified |
| 9 | Low Temperature Flexibility at -40℃ | ASTM D1056 | Qualified |
| 10 | Recommended Operating Temperature (℃) | SAE J2236 | -40℃ ~ 180℃ |
Our High Temperature Silicone Foam Strip is manufactured from premium closed-cell silicone foam material, specifically designed for demanding industrial sealing and insulation applications. By combining the natural temperature resilience of silicone rubber with a highly compressible cellular structure, it offers excellent flexibility, superior compression recovery, and long-term durability under extreme environmental conditions.
With a continuous operating temperature range from -60°C to +250°C, this extruded silicone foam cord maintains stable mechanical performance without cracking, shrinking, or hardening. It acts as an impenetrable barrier, providing outstanding resistance to UV radiation, ozone exposure, moisture ingress, aging, and a wide range of industrial chemicals. This makes our silicone foam strips highly reliable for both rigorous indoor manufacturing environments and harsh outdoor weather conditions.
Available in various profiles—including round, square, D-shape, P-shape, and custom complex extrusions—our silicone foam seals can also be supplied with high-strength pressure-sensitive adhesive (PSA) backing for rapid, secure installation.
Unlike traditional rubber components that degrade under thermal stress, our silicone foam strips perform reliably from -60°C to +250°C. They remain pliable in cryogenic conditions and resist melting or deformation in high-heat industrial processes.
Thanks to its optimized closed-cell structure, the material maintains excellent "memory" and elasticity after repeated compression cycles. This ensures a tight, continuous seal over years of operation without premature flattening or material fatigue.
The closed-cell configuration prevents the passage of foreign elements, providing effective and long-lasting protection against:
For critical applications in transportation and electronics, our foam strips can be formulated to meet stringent UL94 V-0 flame retardant ratings, significantly enhancing overall fire safety.
Engineered to withstand harsh industrial environments, the strips exhibit excellent resistance to weak acids, alkalis, lubricating oils, ozone, UV rays, and general weathering without deteriorating.
| Property | Specification |
|---|---|
| Material | Closed Cell Silicone Foam Elastomer |
| Manufacturing Process | Continuous Extrusion |
| Color | Red, Black, White, Gray (Custom colors available) |
| Temperature Range | -60°C to +250°C |
| Density | Customizable based on application needs |
| Hardness | 10-40 Shore OO |
| Water Absorption | Very Low (<5%) |
| Compression Set | Excellent (Resists permanent deformation) |
| UV & Ozone Resistance | Excellent for prolonged outdoor use |
| Flame Rating | UL94 V-0 Optional |
| Adhesive Backing | Optional (Single/Double Sided PSA) |
We manufacture silicone foam cords and seals in various standard cross-sections, as well as complex custom profiles tailored to fit specific groove designs and closure requirements:
Because of its combination of thermal stability, compressibility, and environmental resistance, our silicone foam strip is a vital component across multiple heavy-duty industries:
SENMA supports complete OEM and ODM customization to match your precise engineering specifications.
Our customization options include:
Simply send us your CAD drawings or physical samples, and our engineering team will evaluate the requirements and provide the most suitable and cost-effective extrusion solution.
Our standard closed-cell silicone foam operates reliably in continuous temperatures ranging from -60°C up to +250°C, making it highly suitable for both freezing environments and high-heat industrial applications.
Yes. We can apply single-sided or double-sided adhesive tape (such as 3M) to the flat surfaces of the profiles. This significantly reduces installation time during assembly.
Absolutely. If you require a unique shape (like a specific lip seal, U-channel, or keyhole profile), we can design the extrusion die based on your technical drawings or physical samples and produce the exact profile you need.
Our standard colors are Red, Black, White, and Gray. However, we can custom-mix pigments to produce silicone foam in virtually any color to match your product design or safety coding requirements.
Yes. For applications requiring strict fire safety protocols—such as electric vehicle batteries, aerospace, or consumer electronics—we can formulate the silicone to meet UL94 V-0 flame retardant specifications upon request.
SENMA supplies premium silicone foam strips, cords, and custom-extruded sealing components to industrial customers worldwide.
Whether you require standard profiles in bulk or fully customized silicone sealing solutions for a specialized project, our experienced team is ready to support you with professional engineering advice, competitive pricing, and fast global delivery.
Contact us today to request a quotation or a free sample for testing.
