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Silicone Foam Rubber SA700-400
SA700-400 rigid silicone foam offers enhanced sealing performance comparable to sponge rubber. It is designed for enclosures requiring durable, high-closure-force gaskets. Its patented chemical composition and cellular structure provide long-term performance advantages, making it suitable for sealing, insulating, cushioning, and protective applications in demanding environments.
Key Benefits
- 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
Foamed Silicone Rubber SA700-400
Rigid Silicone Foam for Durable High-Closure-Force Gaskets, Thermal Insulation, and Electrical Protection
SA700-400
Rigid Silicone Foam
High-Closure-Force Gaskets
Thermal Conductivity ≤0.2 W/(m·K)
Breakdown Voltage ≥8 kV
UL94 V0
Rigid Silicone Foam
High-Closure-Force Gaskets
Thermal Conductivity ≤0.2 W/(m·K)
Breakdown Voltage ≥8 kV
UL94 V0
Series Snapshot
Model
SA700-400
SA700-400
Color
Gray / Black
Gray / Black
Thickness Range
1.0–10.0 mm
1.0–10.0 mm
Density
350 ± 35 kg/m³
350 ± 35 kg/m³
Technical Information
Review the product positioning, core data, compression behavior, application fit, and supply direction for SA700-400 foamed silicone rubber.
Q1
What is SA700-400 designed for?
SA700-400 is designed for enclosures and assemblies that need durable, high-closure-force gaskets, stronger sealing performance, and long-term reliability under demanding environmental conditions.
Rigid Foam Direction
Suitable where the structure needs rigid silicone foam behavior rather than softer conformable foam grades.
High-Closure-Force Gaskets
Useful in gasket applications that require durable sealing under higher compression force.
Long-Term Performance
Its patented chemical composition and cellular structure are presented as providing 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 SA700-400?
The datasheet provides the following values for evaluating rigid gasket support, sealing durability, insulating capability, and flame-retardant performance.
| Property | Test Standard | SA700-400 |
|---|---|---|
| Color | Visual | Gray / Black |
| Thickness (mm) | / | 1.0–10.0 |
| Density (kg/m³) | ASTM D3574-95 | 350 ± 35 |
| Compression Force Deflection (25%) | ASTM D3574 | 110–140 kPa |
| Compression Set | ASTM D3574-95 Test D @ 158°F | <5% |
| Tensile Strength | ASTM D3574-95 Test E | 260 kPa |
| Tear Strength | ASTM D3574-95 Test E | 3.3 N/mm |
| Thermal Conductivity | ASTM D5470 | ≤0.2 W/(m·K) |
| Breakdown Voltage | ASTM D149 | ≥8 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 SA700-400 emphasize?
The datasheet points to rigid-gasket support, strong sealing durability, exceptional thermal insulation, and electrical insulation as the core functional directions.
Durable 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 SA700-400 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 SA700-400 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 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
Frequently Asked Questions
Q1. What is the biggest difference between SA700-400 and softer foam grades?
SA700-400 is positioned as a rigid silicone foam for durable, high-closure-force gasket applications rather than softer, lower-force sealing interfaces.
Q2. Is SA700-400 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 SA700-400 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 SA700-400?
The listed flame retardancy is UL94 V0, and the listed shelf life is 12 months.
