What does the material table show?
The table compares common hose and gasket materials - such as NBR, EPDM, FKM/Viton, PTFE, silicone, PUR and PVC - based on temperature range, chemical resistance, steam/hot water resistance, ozone/UV/weather, abrasion resistance, oil/fuel and food approval, among others. The aim is to quickly guide you to the right material for your application.
| Polymer description | ASTM code | temperature | Characteristics |
|---|---|---|---|
| Natural rubber (Isoprene rubber) | NR | -60°C - +70°C | + High wear resistance, + High elasticity, + Good cold resistance - Low gasoline/oil resistance, - Low heat resistance |
| Styrene butadiene rubber | SBR | -55°C - +90°C | + High wear resistance, + High elasticity, + Good heat resistance - Low gasoline/oil resistance, - Low ozone resistance |
| Ethylene propylene gum (Ethylene propylene ether polymer) | EPDM | -55°C - +120°C | + High weather and ozone resistance, + Good heat resistance, + Good resistance to chemicals, + Good wear resistance - Low gasoline/mineral oil resistance |
| Butyl rubber (Isobutene-isoprene rubber) | IIR | -55°C - +110°C | + High gas permeability, + Good weather and ozone resistance, + Good resistance to chemicals, - Low gasoline/oil resistance |
| Nitrile rubber (Acrylonitrile butadiene rubber) | NBR | -35°C - +100°C | + High gasoline/oil resistance, + Good resistance to chemicals - Low weather and ozone resistance |
| Urethane rubber | AU | -20°C - +70°C | + High wear resistance, + Good gasoline/oil resistance - Hydrolysis sensitive, - Low cold and heat resistance |
| Flour rubber (Viton®) | FKM | -40°C - +250°C | + High heat resistance, + High weather and ozone resistance, + Good oil resistance, + Good resistance to chemicals - High hardness, - High price |
| Silicone rubber | Q | -90°C - +250°C | + High heat resistance, + High weather and ozone resistance, + Good resistance to chemicals - Low gasoline/oil resistance, - Hydrolysis sensitive |
| Chlorosulfonethene rubber (Hypalon®) | WSC | -40°C - +120°C | + High chemical resistance, + Good heat resistance, + Good weather and ozone resistance - Low gasoline resistance, - High price |
| Polyvinyl chloride | PVC | -10°C - +60°C | + Good weather and ozone resistance, + Good wear resistance - Low temperature resistance, - Moderate gasoline/oil resistance |
| Polytetrafluoroethylene (Teflon®) | PTFE | -80°C - +260°C | + High temperature resistance, + High chemical resistance, + Good weather resistance, + Low friction, + Self-lubricating, + Good gas permeability - High price, - Low elasticity |
| Polyurethane plastic | PUR | -30°C - +80°C | + High wear resistance, + High weather and ozone resistance, + Good gasoline/oil resistance, - Hydrolysis sensitivity |
| Chloroprene rubber (Neoprene®, Polychlorobutadiene rubber) | CR | -55°C - +100°C | + Good weather and ozone resistance, + Good oil resistance, + Good heat resistance - Moderate gasoline resistance |
| Thermoplastic polyester (Hytrel®) | TPES | -30°C - +80°C | + High chemical resistance, + Low friction, - Low heat and cold resistance |
| polyamide (Nylon®) | PA | -10°C - +80°C | + High chemical resistance, + Low friction, + Good wear resistance - Low heat and cold resistance |
| Cross-linked polyethylene | XLPE | -20°C - +80°C | + High chemical resistance, + Low friction, + Good gasoline/oil resistance - Low elasticity |
Basic facts about rubber
Rubber is a group of polymeric organic substances with elastic properties. Polymers in the form of construction materials are commonly referred to as plastics. Plastics refer to construction materials based on polymers. Different rubbers are produced with different additives to give the material the desired properties. These can be, for example, colors or plasticizers.
Rubber is most often black because black usually gives the best properties; gray variants are also common. EPDM is available in more colors, and silicone can be obtained in a large number of colors with different degrees of transparency. Natural rubber is extracted from the sap of special trees.
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