EPDM is a copolymer composed of ethylene, propylene, and a small amount of non – conjugated diene. Its main characteristics include superior resistance to oxidation, ozone, and corrosion. Additionally, due to its molecular structure, it exhibits excellent vulcanization properties. Thanks to these remarkable features, EPDM is widely utilized in car parts, waterproof materials, wire and cable sheaths, seals, and more. Now, let’s take a detailed look at the properties of EPDM hoses.
Cost – effectiveness
EPDM has an extremely low raw rubber density, making it the lightest among rubbers. Moreover, it can absorb a large quantity of oils and fillers. Interestingly, this absorption has almost no adverse effects on its properties. As a result, this significantly reduces the overall cost of EPDM hoses.
Corrosion Resistance
EPDM rubber lacks polarity and has a low degree of saturation. Consequently, it shows strong resistance to various acids, alkalis, alcohols, oils, greases, and oxidants. However, it’s important to note that prolonged exposure to high – melting conditions can lead to a decline in the performance of EPDM rubber hoses.
Wide Operating Temperature Range
EPDM rubber hoses can operate continuously at 120℃ for an extended period. Additionally, they can withstand 150℃ for short durations.
Excellent Insulation Property
EPDM rubber boasts outstanding electrical insulation and corona resistance. In fact, its electrical properties are either better than or comparable to those of SBR and PE.
Exceptional Aging Resistance
EPDM hoses are highly resistant to weathering, ozone, UV radiation, and heat. Therefore, they are the optimal choice for applications in high – temperature environments, such as steam hoses. Furthermore, EPDM pipes are well – suited for outdoor use.