When selecting hydraulic hoses for chemical industry or food processing applications, understanding inner tube material properties is the foundation of making informed decisions. The inner tube—the layer that directly contacts the conveyed medium—determines chemical compatibility, temperature tolerance, and ultimately, product safety and longevity.
For Southeast Asian manufacturers looking to sell on Alibaba.com, offering the right material configuration for your target application isn't just about meeting specifications—it's about demonstrating technical expertise that builds buyer trust in the competitive B2B marketplace.
Seven Common Inner Tube Materials: Properties & Applications
| Material | Best For | Temperature Range | Chemical Resistance | Not Recommended For |
|---|---|---|---|---|
| NBR (Nitrile Butadiene Rubber) | Petroleum oils, hydraulic fluids, water-glycol | -40°C to +100°C | Excellent oil resistance | Ozone, weather, ketones, esters |
| HNBR (Hydrogenated NBR) | High-temperature oils, fuels, HFC refrigerants | -40°C to +150°C | Better heat/chemical resistance than NBR | Ketones, esters, strong acids |
| EPDM (Ethylene Propylene) | Hot water, steam, brake fluids, alkalis | -50°C to +150°C | Excellent weather/ozone resistance | Petroleum oils, hydrocarbon solvents |
| FKM (Fluoroelastomer/Viton) | High-temperature fuels, aggressive chemicals | -20°C to +200°C | Outstanding chemical/heat resistance | Ketones, esters, low temperature flexibility |
| CR (Chloroprene/Neoprene) | Moderate oils, refrigerants, weathering | -40°C to +100°C | Good weather/flame resistance | Strong oxidizing acids, ketones |
| SBR (Styrene Butadiene) | Water, air, mild hydraulic fluids | -50°C to +80°C | Good abrasion resistance | Oils, fuels, ozone exposure |
| PTFE (Polytetrafluoroethylene) | Aggressive chemicals, solvents, high purity | -60°C to +260°C | Universal chemical resistance | Molten alkali metals, high pressure flexing |
Key Takeaway: There is no universal 'best' material—each serves specific applications. NBR dominates petroleum-based hydraulic systems due to cost-effectiveness and oil resistance. EPDM excels in food processing where hot water and steam cleaning are routine. PTFE handles the most aggressive chemicals but at premium cost. FKM provides the highest temperature tolerance for demanding industrial environments.
For manufacturers on Alibaba.com, offering multiple material options allows you to serve diverse buyer segments—from cost-conscious automotive workshops to safety-critical chemical processing plants.

