Sponge Rubber Profiles
Continuous closed-cell expanded sponge rubber profiles engineered with an impermeable outer skin. Delivers superior environmental sealing, acoustic attenuation, and dust exclusion with minimal compressive latch force.
Types & Configurations of Sponge Rubber Profiles
Round Sponge O-Ring Cords
Closed-cell sponge cords for round groove sealing on lightweight electronic covers.
Hollow Cellular Sponge Profiles
Dual-cavity sponge sections absorbing large manufacturing assembly tolerances.
Self-Adhesive Door Sponge Weatherstrips
High-tack peel-and-stick sponge gaskets for electrical meter boxes and telecom shelters.
Flame-Retardant Neoprene Sponge
Self-extinguishing closed-cell sponge meeting UL 94 HF-1 and EN 45545-2 railway standards.
Food Grade Silicone Sponge Profiles
High-temperature, non-toxic expanded silicone for commercial food dehydrators and autoclaves.
Key Industrial Applications
Specifications & Technical Details
Sponge Rubber Profiles can be precision-manufactured in custom dimensions, wall thicknesses, cross-sections, and durometers to match your exact application specifications. Below are typical engineering cross-section drawings and technical parameters for reference.
Typical Dimension Drawings & Blueprint Cross-Sections
Technical Specifications
| Parameter | Specification / Options |
|---|---|
| Density Range | 0.40 g/cm³ to 0.75 g/cm³ (25 to 45 lbs/cu.ft) |
| Water Absorption | < 3% by weight (ASTM D1056 closed cell test) |
| Compression Set | < 15% after 22 hrs @ 50% deflection @ 23°C |
| Elongation | 150% to 300% (ASTM D412) |
| Skin Finish | Smooth integral outer vulcanized skin on all exterior surfaces |
| Polymers | EPDM (outdoor), Neoprene (flame retardant), Nitrile (oil resistant), Silicone |
| Operating Temp | -45°C to +125°C |
Material Selection & Properties
We offer specialized compound formulations tailored to chemical media, thermal extremes, static deflection, and dynamic fatigue requirements. The best material depends on your operating environment and required service life.
| Material / Polymer | Key Engineering Properties | Recommended Applications & Considerations |
|---|---|---|
| EPDM Dense Rubber | Extreme weather, ozone & UV radiation resistance | Automotive door/window seals, building facade gaskets |
| EPDM Sponge / Foam | Low closure force, closed-cell water & dust sealing | Enclosure door perimeter gaskets, electrical cabinet seals |
| Nitrile (NBR) Extrusion | Resists mineral oils, hydraulic fluids & greases | Machinery inspection hatch seals, oil sump gaskets |
| Neoprene (CR) Rubber | Self-extinguishing, marine atmospheric stability | Ship portlights, railway carriage door profiles |
| Natural Rubber (NR) | High tear strength, abrasion resistance & elasticity | Chute edge protectors, quarry screening rubber strips |
Important Engineering Guidance
The above properties are general characteristics. Final material selection depends on your specific application, operating conditions, load requirements, media compatibility, and service temperature. Please contact our polymer engineering team for tailored compounding guidance on Sponge Rubber Profiles.
Production Batch Gallery
Actual production batch examples of Sponge Rubber Profiles manufactured for OEM, automotive, railway, and heavy engineering clients. We manufacture standard catalogue sizes as well as bespoke custom geometries from your CAD models or physical samples.
Request an Engineering Quote
Share your required dimensions, polymer grade, or 2D/3D drawings for immediate engineering review and quote.