Natural rubber (NR) hoses are, as their name suggests, made of rubber material obtained from the natural latex sap of rubber trees. When we examine a natural rubber sample, approximately 94% of it is made up of polyisoprene, while the remaining few percent is made up of natural resin, protein, and small amounts of water and ash. The combination of resin, protein and polyisoprene with a high cis content gives the unique properties of natural rubber hoses, which are used in many industries, because they have a high resistance to inorganic chemicals.

izoflex nr rubber hoses

What unique properties do NR hoses have?

Material Properties

Natural rubber hoses offer excellent elasticity, flexibility, and abrasion resistance. They have good tensile strength and tear resistance, making them durable and suitable for various applications.

Chemical Resistance

Natural rubber hoses have fair to good resistance to some chemicals, including acids, alkalis, and salts. However, they are not suitable for use with oils, hydrocarbons, or solvents, as these substances can degrade the rubber.

Temperature Range

NR hoses typically have a temperature range of -40°C to +70°C. They can handle both hot and cold fluids within this temperature range. However, at extreme temperatures, the performance of natural rubber may be compromised.

Areas of application of NR hoses

NR hoses find applications in various industries, including agriculture, construction, mining, automotive, and general-purpose fluid transfer. They are commonly used for water, air, and non-aggressive fluid transfer. However, due to their limited chemical resistance, they are not suitable for applications involving aggressive chemicals or oils.

Natural rubber hoses require proper maintenance and storage to prolong their lifespan. It is important to keep them away from direct sunlight, ozone, and extreme temperatures when not in use. Regular inspection and cleaning are recommended to prevent degradation and ensure optimal performance.

NR hoses from IZOFLEX

When choosing an NR hose, it is essential to consider the compatibility of the hose material with the given liquid or medium. Natural rubber hoses may not be suitable for conveying certain chemicals or liquids, so it is important to consult the chemical compatibility charts. And if you are unsure, ask the IZOFLEX technical team for guidance, who will help you choose the right NR rubber hose for your purpose.

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