--- title: "Silicone Foam Rubber SA700-450" id: "2993" type: "product" slug: "silicone-foam-rubber-sa700-450" published_at: "2026-04-25T04:00:24+00:00" modified_at: "2026-04-25T04:00:24+00:00" url: "https://www.sheenmaterials.com/silicone-foam-rubber-sa700-450/" markdown_url: "https://www.sheenmaterials.com/silicone-foam-rubber-sa700-450.md" excerpt: "SA700-450 ultra-rigid silicone foam provides enhanced sealing performance comparable to sponge rubber. It is designed for enclosures that require durable, high-closure-force gaskets, while its patented chemical composition and foam structure help provide long-term performance advantages. This material is suitable for..." taxonomy_product_cat: - "Silicone Foam" - "Standard Density" taxonomy_product_tag: - "Silicone Foam" --- [🔍](#) # Silicone Foam Rubber SA700-450 SA700-450 ultra-rigid silicone foam provides enhanced sealing performance comparable to sponge rubber. It is designed for enclosures that require durable, high-closure-force gaskets, while its patented chemical composition and foam structure help provide long-term performance advantages. This material is suitable for applications that require stronger compression support, reliable sealing, thermal insulation, and electrical insulation in demanding service environments. ### Key Benefits - Ultra-rigid silicone foam structure for durable, high-closure-force gasket applications - Enhanced sealing performance comparable to sponge rubber - Exceptional thermal insulation with low thermal conductivity to reduce heat transfer - Excellent compression resilience for long-term sealing performance with low compression set - High electrical insulation performance for protected battery, cabinet, and power-system structures - Outstanding flame retardancy and environmental stability for high-reliability applications Categories: [Silicone Foam](https://www.sheenmaterials.com/silicone-foam/) , [Standard Density](https://www.sheenmaterials.com/standard-density/) Tag: [Silicone Foam](https://www.sheenmaterials.com/product-tag/silicone-foam/) Share your love[https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F) [https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F&text=Silicone%20Foam%20%20Rubber%20SA700-450](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F&text=Silicone%20Foam%20%20Rubber%20SA700-450) [#](#) [https://www.linkedin.com/shareArticle?url=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F&title=Silicone%20Foam%20%20Rubber%20SA700-450](https://www.linkedin.com/shareArticle?url=https%3A%2F%2Fwww.sheenmaterials.com%2Fsilicone-foam-rubber-sa700-450%2F&title=Silicone%20Foam%20%20Rubber%20SA700-450) - [描述](#tab-description) ## Foamed Silicone Rubber SA700-450 Ultra-Rigid Silicone Foam for Durable High-Closure-Force Gaskets, Strong Compression Support, and Thermal / Electrical Insulation SA700-450 Ultra-Rigid Silicone Foam High-Closure-Force Gaskets Thermal Conductivity ≤0.2 W/(m·K) Breakdown Voltage ≥9 kV UL94 V0 Series Snapshot Model SA700-450 Color Gray / Black Thickness Range 1.0–10.0 mm Density 450 ± 45 kg/m³ ### Technical Information Review the product positioning, core data, compression behavior, application fit, and supply direction for SA700-450 foamed silicone rubber. [Q1 Product Positioning](#sa450-q1) [Q2 Technical Data](#sa450-q2) [Q3 Compression & Insulation](#sa450-q3) [Q4 Configurations & Handling](#sa450-q4) [Q5 Applications](#sa450-q5) [Downloads & FAQ](#sa450-downloads) Q1### What is SA700-450 designed for? SA700-450 is designed for enclosures and assemblies that need ultra-rigid silicone foam behavior, durable high-closure-force gaskets, stronger sealing performance, and long-term reliability under demanding environmental conditions. **Ultra-Rigid Foam Direction**Suitable where the structure requires more rigid gasket behavior than lower-density or softer foam grades. **Durable High-Closure-Force Gaskets**Useful in gasket applications that require durable sealing under higher compression force and long-term service. **Long-Term Performance**Its patented chemical composition and foam structure are presented as offering long-term performance advantages. **Protection-Oriented Foam Use**Suitable for insulation, sealing, cushioning, and protective roles in electrical, battery, and outdoor structures. Q2### What are the core technical data for SA700-450? The datasheet provides the following values for evaluating rigid gasket support, sealing durability, insulating capability, and flame-retardant performance. | Property | Test Standard | SA700-450 | | --- | --- | --- | | Color | Visual | Gray / Black | | Thickness (mm) | / | 1.0–10.0 | | Density (kg/m³) | ASTM D3574-95 | 450 ± 45 | | Compression Force Deflection (25%) | ASTM D3574 | 140–180 kPa | | Compression Set | ASTM D3574-95 Test D @ 158°F | <5% | | Tensile Strength | ASTM D3574-95 Test E | 350 kPa | | Tear Strength | ASTM D3574-95 Test E | 5.5 N/mm | | Thermal Conductivity | ASTM D5470 | ≤0.2 W/(m·K) | | Breakdown Voltage | ASTM D149 | ≥9 kV | | Electrical Insulation | ASTM D412 | >1 × 1015 Ω·cm | | Flame Retardancy | UL94 | V0 | These values are suitable for early-stage screening. Final material selection should still be validated against the actual gasket compression requirement, sealing line, and long-term environmental exposure condition. Q3### What performance strengths does SA700-450 emphasize? The datasheet points to ultra-rigid gasket support, strong sealing durability, exceptional thermal insulation, and electrical insulation as the core functional directions. **Ultra-Rigid Gasket Support**Designed for durable, high-closure-force gasket structures rather than softer compression interfaces. **Excellent Compression Resilience**Compression set below 5% supports long-term sealing effect and resistance to permanent compression deformation. **Exceptional Thermal Insulation**Low thermal conductivity helps effectively prevent heat transfer in protected electrical and battery assemblies. **Electrical Protection**High insulation value and high breakdown voltage support battery packs, cabinets, and power-related protection structures. Q4### How can SA700-450 be supplied and handled? The datasheet provides a project-based supply direction with customized sheets and die-cut parts, plus standard storage and transportation guidance. **Configurations Available**Sheet products: Customized Die-cut products: Customized **Storage & Transportation**Store in a well-ventilated, cool, and dry place. Keep away from open flames. **Safety**The product is non-toxic and should be stored and transported as a non-hazardous material. **Shelf Life**12 months Q5### Which applications fit SA700-450 best? The datasheet highlights battery pack structures, outdoor communication or power cabinets, and charging-pile sealing as strong-fit applications. #### Battery Pack Inter-Cell Pads Suitable for inter-cell cushioning and insulating pads where very high compression resistance is required to help prevent battery cell expansion. #### Upper / Lower Housing Sealing Strips Applicable to enclosure sealing strips that need durable, high-force gasket behavior, flame retardancy, and aging resistance. #### Outdoor Communication / Power Cabinets Suitable for waterproof sealing strips exposed to long-term sunlight, rain, and temperature fluctuations without degradation in sealing force. #### Charging Pile Fire Sealing Can be used for fire sealing and protective sealing roles inside charging-pile structures. ### Downloads & FAQ Technical Resources [Download SA700-450 Datasheet](https://www.sheenmaterials.com/wp-content/uploads/2026/04/SA700-450-Datasheet-Sheen-Materials-Foamed-Silicone-Rubber.pdf) [View Datasheet Center](https://www.sheenmaterials.com/resource/datasheet-download/) [Contact Sales for Sample Support](/cdn-cgi/l/email-protection#a6d5c7cac3d595e6d38bd5cec3c3c888c5c9cb) Frequently Asked Questions Q1. What is the biggest difference between SA700-450 and lower-density foam grades?SA700-450 is positioned as an ultra-rigid silicone foam for durable, very high-closure-force gasket applications rather than softer, lower-force sealing interfaces. Q2. Is SA700-450 suitable for demanding enclosure gasket structures?Yes. The product description explicitly states it is designed for enclosures requiring durable, high-closure-force gaskets. Q3. Is SA700-450 suitable for outdoor cabinet sealing?Yes. The datasheet explicitly highlights waterproof sealing strips for outdoor communication and power cabinets exposed to long-term sunlight, rain, and temperature fluctuations. Q4. Can the product be supplied in converted forms?Yes. The datasheet lists customized sheet products and customized die-cut products. Q5. What flame rating and shelf life are listed for SA700-450?The listed flame retardancy is UL94 V0, and the listed shelf life is 12 months. ## Related products - [https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-260/](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-260/) ## [Silicone Foam Rubber SA700-260](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-260/) [Read more](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-260/) - [Silicone Foam](https://www.sheenmaterials.com/silicone-foam/) , [Standard Density](https://www.sheenmaterials.com/standard-density/) - [https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-350/](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-350/) ## [Silicone Foam Rubber SA700-350](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-350/) [Read more](https://www.sheenmaterials.com/silicone-foamed-rubber-sa700-350/) - [Standard Density](https://www.sheenmaterials.com/standard-density/) , [Silicone Foam](https://www.sheenmaterials.com/silicone-foam/) - [https://www.sheenmaterials.com/silicone-foam-rubber-sa700-500/](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-500/) ## [Silicone Foam Rubber SA700-500](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-500/) [Read more](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-500/) - [Silicone Foam](https://www.sheenmaterials.com/silicone-foam/) , [Ceramifiable / Fire Barrier Silicone Foam](https://www.sheenmaterials.com/ceramifiable-fire-barrier-silicone-foam/) - [https://www.sheenmaterials.com/silicone-foam-rubber-sa700-900/](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-900/) ## [Silicone Foam Rubber SA700-900](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-900/) [Read more](https://www.sheenmaterials.com/silicone-foam-rubber-sa700-900/) - [Ceramifiable / Fire Barrier Silicone Foam](https://www.sheenmaterials.com/ceramifiable-fire-barrier-silicone-foam/) , [Silicone Foam](https://www.sheenmaterials.com/silicone-foam/)