Overview
Rubber sponge flat strips are engineered from open or closed-cell rubber foam, combining elasticity with lightweight porous structure. Primarily made from EPDM, neoprene, or nitrile rubber, these strips balance durability and flexibility. Their cellular design allows for up to 70% compression recovery, making them ideal for dynamic sealing applications. Industrial variants often incorporate additives for UV resistance, flame retardancy, or oil resistance. The material's porosity can be adjusted during manufacturing to achieve specific density and compression characteristics, with standard widths ranging from 5mm to 50mm and thicknesses from 1mm to 20mm.
Physical and Chemical Properties
The material exhibits low thermal conductivity (0.04–0.06 W/m·K) and sound transmission loss of 15–30 dB, depending on cell structure. Typical compression set ranges from 10–25% after 22 hours at 70°C. Weather-resistant grades maintain elasticity from -40°C to 120°C. Chemical resistance varies by base material: EPDM resists polar solvents and ozone, while nitrile sponge performs better against oils. All types show good resistance to water absorption (<3% by volume). The open-cell variants allow air permeability, whereas closed-cell types provide better moisture barriers.
Main Applications
In construction, these strips seal expansion joints and window frames, preventing air/water infiltration while allowing structural movement. Automotive applications include trunk lid seals and interior component cushioning, where vibration damping is critical. HVAC systems utilize them for ductwork gasketing due to their thermal insulation properties. Industrial machinery employs high-density variants as anti-vibration pads. Emerging uses include renewable energy equipment sealing and medical device cushioning, where FDA-compliant grades are available.
Safety and Storage
Most rubber sponge strips are classified as non-hazardous under OSHA standards. However, chloroprene-based types may release trace HCl gas when burned. Proper ventilation is recommended during hot knife cutting processes. Storage requires protection from direct sunlight (UV degrades rubber polymers) and ozone-generating equipment. Rolls should be stored horizontally to prevent permanent deformation. Shelf life typically exceeds 2 years when stored below 30°C with relative humidity under 65%.
B2B Procurement Guide
For volume purchases (typically >1,000 linear meters), request certified material data sheets specifying density (kg/m³), compression force deflection (CFD), and flame ratings (UL94/BS6853). Industrial buyers should verify compliance with RoHS and REACH regulations. Sample testing should assess compression set (ASTM D395) and water absorption (ASTM D471). For custom profiles, minimum order quantities usually start at 500m with 4–6 week lead times. Consider adhesive-backed variants for installation efficiency in high-volume production lines.
Related Manufacturers
- 主营：[]
- 主营：公路桥梁伸缩缝、盆式支座、球型支座、板式橡胶支座、橡胶止水带、粘滞阻尼器、建筑隔震支座、建筑摩擦摆支座
- 主营：止水条、制品型止水条、密封胶、防水密封胶条、遇水膨胀橡胶条、丁基腻子橡胶自粘薄片、橡胶制品专用粘合剂、橡胶止水带、单组份聚氨酯密封胶、双组份聚氨酯密封胶、双组份聚硫密封胶、钢板腻子止水带、遇水膨胀止水条、接缝防水胶、闭孔泡沫板、聚氨酯密封胶、双面自粘薄片、防水补漏自粘片、遇水膨胀止水胶、柔性填料、膨胀止水环、盾构粘合剂
- 主营：密封条、汽车空气管、挡水密封条、橡胶条、密封胶条、钢丝橡胶条、汽车门边胶条、橡胶防水条、T型密封胶条、止滑条、复合防撞条、B型密封条、汽车密封条、燕尾密封条、异型密封条、D型自沾条、T型硅胶密封条、中门密封条、钢带密封条、三复合密封条、硅胶密封条、骨架复合U型条、车门防撞条、车身密封条、防冻密封条
- 主营：橡胶发泡条、橡胶密封胶条、耐高低温胶条、减震发泡条、发泡密封条
- 主营：轮船防护条、楼梯防滑条、密封条、橡胶条、硅胶条、胶条、橡胶密封条、绝缘护套、燕尾止浆条、护角、包边条
- 主营：硅胶条、三元乙丙橡胶密封条、橡塑密封条、发泡密封条、硅胶密封条
- 主营：压敏式安全地毯、压敏地毯、重力毯、橡胶安全地毯、橡胶安全踏垫、橡胶密封条、工业安全地毯、安全地毯、安全脚踏开关、工业安全地毯厂家、工业安全地毯定制、工业安全地毯批发、密封条、船用密封条、硅胶密封条、硅胶充气密封圈、三元乙丙密封条、硅胶充气密封条、充气条、重力触压毯、工业用安全地毯、安全接触边、安全防碰边、安全触发边、安全感应边
- 主营：吊装孔堵头、预埋管封堵盖、塑料注浆封堵盖、平板密封条、管片堵头螺旋盖
- 主营：尼龙板、挡风条、绝缘板、硅橡胶、tpe胶条、橡胶垫、硅胶条、橡胶板、橡胶条、pvc阻燃、pvc卡条、发泡条、耐候胶、聚氨酯、pvc板材、电木棒、阻水条、挤出条、环氧板、密封条、硅胶管、防火门、透明板、尼龙棒、装饰pvc
- 主营：低压胶管、大口径胶管、伸缩胶管、橡胶软连接、陶瓷胶管、硅胶管、尼龙管及尼龙树脂管、高压胶管、复合软管、蒸汽胶管、夹布胶管
- 主营：发泡剂、硅胶发泡剂、EVA发泡剂、橡胶发泡剂、PVC发泡剂、人造革发泡剂
- 主营：三元乙丙密封条、硅胶密封条、tpv密封条、汽车门框胶条、电器柜密封条、tpe密封条、门窗密封条
- 主营：密封条、防风毛条、门窗皮条、橡胶条、门窗胶条、防撞胶条、密封胶条、硅胶条、钢丝机柜、门窗毛条、密封毛条、汽车防尘条、木门自粘条、门窗隔音条、防尘隔音条、车门隔音条、门缝密封条、门底密封条、硅胶管
- 主营：硅胶发泡密封条、三元乙丙发泡条、橡塑密封条、耐高温硅胶条、三元乙丙橡胶条、高透明硅胶条、方型硅胶条、定制异型硅胶条硅胶管、三元乙丙橡胶管、矿厂防尘帘橡胶条、丁晴耐油橡胶密封条、烤箱胶条、振动筛胶条、光伏板防水密封条、集装箱冷藏车密封条、活动板房防水密封条、矿洞、门窗密封条、D型密封条、高弹性密封条、密封条、机柜电柜密封条、防撞条、装饰条、装饰护边条
- 主营：装饰条、集装箱、密封条、硅胶条、密封胶条、隔音条、包边防撞条
- 主营：pp棒、尼龙板、pom板、三元乙丙胶条、绝缘橡胶板、橡胶件、尼龙棒、酚醛布板、绝缘胶木板、电木板、环氧树脂板、有机玻璃板、亚克力板、pc耐力板、硅胶板、pvc板、pp板、pe板、聚氨酯板、pom棒、聚四氟板、云母板、弹性体密封条、3M硅胶发泡密封条、密封条
- 主营：机柜密封条、方形发泡条、硅胶密封条、pvc胶条、橡胶密封条、橡胶海绵条、正方形胶条、圆形硅胶条、橡胶包边条、货车门边胶条、货车门封条、铁板保护条、边缘封边条、家具封边条、彩色硅胶管、车厢门拐角、震动筛密封条、烘烤箱密封条、边缘保护条、三元乙丙密封条、集装箱密封条、垃圾车密封条、船用密封条、门窗密封条、装饰条