Extruded Rectangular Sponge Rubber Seals China Manufacturer
Extruded rectangular sponge rubber seals provide compressible sealing strips for doors, access panels, cabinets, and equipment covers. Their rectangular cross-sections create broad contact surfaces, helping close gaps between mating parts while cushioning contact during closure. The sponge structure allows the profiles to compress under pressure and accommodate minor variations in assembly gaps.
Specify the width, thickness, material requirements, and mounting method to match customers’ products and working conditions.
Key Features of Rectangular Sponge Rubber Seals
- Rectangular profiles: Flat faces suit straight sealing paths, panel edges, and channels with compatible dimensions.
- Compressible sponge structures: Flexible cellular rubber helps accommodate uneven gaps without requiring the closing forces associated with comparable solid rubber profiles.
- Broad sealing contact: Flat contact surfaces support compression sealing when the strips are correctly sized and installed.
- Cushioning performance: Sponge rubber helps soften contact between closing components and reduce rattling caused by direct contact.
- Continuous extrusion: Long profiles can be cut to installation lengths for repeated production and assembly tasks.
Applications for Rectangular Sponge Rubber Strips
Rectangular sponge rubber sealing strips are suitable for compression interfaces across different equipment assemblies. Typical uses include:
- Cabinet doors and access panels: Helping restrict dust and air passage through properly designed closure gaps.
- Equipment covers and inspection hatches: Providing compressible contact around removable or hinged openings.
- Vehicle compartments: Sealing compatible storage covers and access doors while cushioning closure.
- HVAC housings: Helping manage air leakage at panel joints where the selected material meets service requirements.
- Protective housings: Separating contacting surfaces and reducing vibration-related rattling.
Application suitability depends on the rubber compound and operating environment. Outdoor exposure, oils, cleaning chemicals, temperatures, and repeated compression should be considered before material approval.
Specifications for OEM and Bulk Orders
| Product Type | Rectangular Rubber Extrusion / Rectangular Rubber Strip |
| Material | Sponge & Foam EPDM Rubber, Neoprene, Nitrile Rubber (NBR) |
| Cross-Section | Rectangular, Square, Custom Shapes |
| Width | 5–100 mm, or customized |
| Height / Thickness | 3–50 mm, or customized |
| Length | Standard coils or customized lengths |
| Color | Black as standard; other colors available |
| Hardness | 25 ± 5 Shore A as standard, or customized |
| Density / Specific Gravity | 0.5–0.7 g/cm³, or customized |
| Tensile Strength | ≥10 MPa |
| Elongation at Break | ≥200% |
| Temperature Range | -40°C to +120°C |
| Compression Set | ≤30%, depending on material |
| future | Excellent ozone, weather, water and UV resistance; good oil resistance for NBR |
| Tolerance | RMA Standard Cross-Sectional Tolerance E2, or customized |
| Surface Finish | Smooth, textured, or customized |
| Manufacturing Process | Rubber Extrusion / Continuous Extrusion |
| Splicing / Cutting | Continuous length, cut-to-length, or custom splicing available |
| Applications | Window & Door Sealing, Cabinet Sealing, Machinery, Automotive, Industrial Equipment, Enclosures |
If adhesive backing is required, confirm compatibility with the mounting surface, temperature exposure, and assembly process. Adhesive selection should support installation without replacing the compression needed for sealing.
SEASHORE Rubber Sponge Rectangles Seals In Detail
