Flat Silicone Sponge Gaskets
Flat silicone sponge gasket for sealing applications
Flat silicone sponge (foam) gaskets are resilient sealing elements widely used in applications requiring compressible sealing, vibration damping, insulation, and environmental protection. They combine the flexibility of silicone rubber with sponge / foam cellular structure, providing excellent compression recovery and resistance to aging, weather, and temperature extremes.
At Suconvey, we specialize in custom flat silicone sponge gaskets and foam silicone rubber seals tailored to your dimensional and performance requirements, with or without adhesive backing.
Whether your application demands dust sealing, moisture protection, cushioning, or thermal isolation, our flat silicone sponge (foam) gaskets deliver reliable performance.
Silicone Foam Gaskets
Flat silicone sponge (foam) gaskets are cut or die-cut sealing strips made from cellular silicone material — often referred to as sponge or foam silicone. The structure provides:
✔ Soft, compressible sealing surface
✔ Excellent recovery after compression
✔ Resistance to UV, ozone, and aging
✔ Wide temperature tolerance
✔ Cushioning and vibration isolation
Unlike solid silicone rubber gaskets, sponge / foam gaskets offer better conformity and fill gaps, especially where surface irregularities exist or repeated compression cycles are required.
Product Details
Silicone Foamed Sealing Gasket Supplier
Key Advantages
Superior Compression Recovery
The cellular silicone structure rebounds after load release, maintaining consistent sealing force over time.
Wide Temperature & Environment Resistance
Perform reliably across a broad range of temperatures and resist outdoor elements like ozone, UV radiation, and moisture.
Gap Filling & Conformability
The soft sponge / foam structure conforms to uneven mating surfaces, improving sealing in imperfect flanges or housings.
Lightweight & Insulating
Low density foam provides thermal insulation and reduces transmitted vibration.
Customizable Profiles
Flat gasket strips can be cut to specific widths, lengths, and shapes based on your design.
China High Quality Silicone Foamed Gaskets Manufacturer
Technical Specifications
| Item | Specification | Notes |
|---|---|---|
| Product | Flat Silicone Sponge (Foam) Gasket | Compressible sealing strip |
| Material | Silicone Sponge / Foam Rubber | Cellular silicone structure |
| Thickness | 1 – 25 mm | Custom thickness available |
| Width | 5 – 200 mm | Custom widths supported |
| Temperature Range | -60℃ to +200℃ | Application dependent |
| Density | Low – High (Custom) | Optimized for rebound/softness |
| Adhesive (Optional) | PSA / High Bond / Removable | If required |
Common Applications
Flat silicone sponge (foam) gaskets are commonly used in:
- HVAC systems and ventilation panels
- Electrical and control cabinets
- Machinery covers and industrial housings
- Access door seals
- Electronics enclosures
- Refrigeration and dehumidification units
- Transportation equipment panels
- Cleanroom enclosures and partitions
Whether sealing against dust, moisture, heat, or vibration, these gaskets provide a cost-effective and durable solution.
Why Choose Suconvey?
Suconvey provides more than just tubing — we offer engineering support, quality assurance and tailored supply solutions to help your project succeed:
---Deep Material Expertise
- Over 10+ years specializing in silicone rubber gaskets for industrial, food, beverage and pharmaceutical markets.
- Understand performance tradeoffs for tubing under temperature, pressure, flex cycles and hygiene requirements.
---Custom Design Support
- Size optimization for flow rates and installation space
- Material selection (solid vs sponge) based on media, pressure and cleaning methods
- Surface finish that supports CIP/SIP sanitation
---Quality from Raw Material to Delivery
Each gasket undergoes:
- Dimensional verification
- Physical property testing (compression set, rebound)
- Visual and surface quality check
- Adhesive bond strength test (if applicable)
- Batch traceability and custom labeling
We support both prototype sampling and volume production for OEMs and industrial users.
---Flexible MOQ & Sample Support
- Support small and pilot orders before production scaling
- Quick turn pre-production samples to verify fit and performance
- Customized packaging and labeling per project needs
---Global Supply & On-time Delivery
- Efficient logistic planning to keep your production on schedule
- Export packing optimized for protection, cleanliness and traceability
Customization Capabilities
We offer extensive customization for flat silicone sponge / foam gaskets:
Shape & Cut
- Straight cut strips
- Die-cut profiles
- Perforated frames
- Precision cut parts based on CAD drawings
Thickness & Width
- Range from 1 mm up to 25+ mm thickness
- Custom widths from narrow strips to wide flanges
Performance Options
- Standard silicone sponge
- High resilience foam for enhanced compression spring-back
- Color coding for identification
Adhesive Backing (Optional)
- General purpose pressure-sensitive adhesive
- High-bond adhesive for demanding surfaces
- Low residue removable adhesive
Adhesive backing simplifies installation while ensuring dimensional stability during assembly.
Packaging & Shipping Information
To protect the product during global transportation and storage, we apply export-grade packaging and provide flexible shipping solutions.
Pre-Shipment Inspection
Each batch is inspected before packaging to confirm hardness, thickness, surface condition, and visual uniformity. Batch codes are recorded and compliance documentation may be provided when required for regulatory purposes.
Packaging Method
Silicone gaskets are wrapped with protective film to prevent dust, moisture, and surface damage. Several rolls are placed into reinforced cartons, which are then secured on fumigation-free pallets using straps and stretch film.
Shipment Options
We regularly ship to customers in Europe, North America, and Asia through sea freight, air freight, or express courier for urgent testing needs. Both FCL and LCL shipments are available.
Documentation Support
All necessary export documents can be provided for customs clearance, including commercial invoice, packing list, bill of lading or airway bill, certificate of origin, and food-contact compliance statements or test reports when applicable.
Sample Delivery
Material samples and short test gaskets can be supplied for validation and equipment trials. Samples can be sent via DHL, FedEx, UPS, TNT, or using your appointed courier account.
After-Arrival Support
If any damage or discrepancies are discovered during unloading or inspection, customers may contact us within 7 days with photos and batch information. Our team will respond promptly to assess the situation and provide a reasonable solution.
Happy Customers
Year after year, multiple industries recognize Suconvey Rubber as a leader in quality, service, and innovation. We’re proud to be one of the top rubber products manufacturers in the world.
Frequently Asked Questions
If your question is not listed, please contact us.
To help us provide an optimal design and accurate quote, please provide:
Cross-section details (thickness and width)
Length or perimeter (for continuous strips or frames)
Operating temperature range
Compression and gap tolerance requirements
Substrate material (metal, plastic, painted surface, etc.)
Adhesive preference (if applicable)
Quantity and desired lead time
The more information you provide, the better we can tailor the gasket to your needs.
To get an accurate quotation, please provide:
CAD drawing or detailed dimension sketch
Material preference (standard / high resilience foam)
Adhesive backing requirement
Operating environment (temperature, humidity, chemicals)
Quantity and delivery expectation
📩 Contact Suconvey today to discuss your custom flat silicone sponge (foam) gasket solution.
In industry terminology, “sponge” and “foam” often describe the same cellular silicone structure. Both have a network of closed cells that provide compressibility and rebound. The terms can be used interchangeably, though “sponge” is often used more in sealing contexts while “foam” may describe material density in insulation applications.
Consider the gap between mating surfaces, the amount of compression required, and the expected operating environment. Thicker profiles provide a greater compression range and gap filling, while thinner profiles suit tighter tolerances. Provide gap measurements for accurate selection.
Yes. Silicone sponge / foam materials typically operate reliably between -60℃ to +200℃, with stable performance over repeated thermal cycles.
They are especially useful where gap filling, cushioning, vibration isolation, dust/moisture sealing, or thermal insulation is required — such as enclosures, access panels, HVAC systems, and electronics housings.
