Extruded EPDM Sponge Rubber Profiles are industrial rubber products for shock absorption and cushioning. They provide good recovery but are softer and less resistant to compression than solid rubber. EPDM Sponge Rubber Profiles also have a high strength-to-weight ratio.
Sponge profiles are formed via extrusion, a production method that allows rubber goods to be run in continuous lengths of the same cross-section. Extruded rubber is manufactured using chemicals and additives such as flame retardants, fillers, cross-linking agents, and pigments or colorants. Sponge rubber extrusions are categorized as either open cell or closed cell, depending on their structure.
Sponge Profiles: Open Cell
Open cell sponge profiles contain interconnected pockets so that air, water, and other chemicals can pass through when the material is not compressed. Open cell materials are suitable for low-pressure and spring-action sealing but are not recommended for weather stripping. Additional applications for open cell sponge rubber includes cushioning, insulation, and padding.
Materials for open cell sponge profiles include polyurethane, polyester, and polyether. Polyurethane sponge rubber absorbs shock and provide cushioning in packaging and furniture. Polyester sponge rubber is lightweight, mildew resistant, and has low thermal conductivity. Polyether sponge rubber is used for sound absorption and dampening.
Sponge Profiles: Closed Cell
Closed cell sponge profiles contain balloon-like cells that hold nitrogen gas and prevent the passage of air or water at low pressures. Applications include military, medical equipment, and acoustic insulation.
Closed cell sponge rubber also combines strong sealing capabilities with good compression and recovery characteristics.
Materials for closed cell sponge rubber include EPT, EVA, nitrile rubber, and SBR sponge; polyethylene, polyurethane, and PVC sponge; and closed cell sponge rubber profiles that use pressure-sensitive adhesives (PSA). Neoprene and EPDM are commonly used. Silicone is suitable for high-temperature applications.
About Us
We always manufacture our sponge profiles from the highest quality compounds available. This ensures that our EPDM Sponge Rubber Profiles are not only suitable for use, but also made to last. Despite offering high strength and tear resistance, our window seals are also highly flexible. This enables our profiles to fit around a wide variety of curves.
Our facility is fully equipped with the latest equipment and technology, providing us with the capability to manufacture precision extruded EPDM Sponge Rubber Profiles in quantities from short run to full production runs. We have 5 extrusion lines, continuous cure microwave, precision cutting, and splicing machines, and also provide value-added finishing services. In addition, we offer in-house tool, and mold design and manufacturing to ensure that your parts are manufactured to the most exacting requirements.
Hebei Shida Seal Group is uniquely qualified to manufacture custom EPDM Sponge Rubber Profiles and Gaskets for your application. Our quality management system is IATF 16949:2016 accredited. We can provide PPAP Level 3 documents for OEM clients.
If you want to contact us about any issue please call (+86)319 8032626 or send us an e-mail. If you would like to submit a proposal for consideration simply submit a quote.