G9 FIBROFLEX® - TECHNICAL DATA FIBROFLEX® - Technical data FIBROFLEX®can be used safely at temperatures up to +70 °C. Cold resistance: FIBROFLEX® will retain most of its flexibility at temperatures as low as –40° C. A gradual increase in rigidity sets in below -18 °C. Resistance to thermal shock is excellent. Resistance to oxygen and ozone: No traceable influences are incurred at normal atmospheric concentrations. Resistance to ageing: Ageing shows no discernible effects in conditions of normal ambient temperatures and generally constant environmental surroundings. The storage stability and long-term use of FIBROFLEX® is therefore problem-free. Tolerance range of FIBROFLEX®- and FIBROELAST® semi-finished items: according to DIN ISO 3302-1 tolerance class M3 Water resistance: FIBROFLEX® exhibits outstanding long-term stability under exposure to water of up to +50 °C. Swelling and/or destructive influences remain absent. This typical resistance against hydrolysis is characteristic for the specific molecular structure of the elastomer. Water/oil emulsions present no problems either. This very high resistance to hydrolysis is characteristic of the specific chemical structure of the elastomer. These are clear advantages of FIBROFLEX® over other polyurethane elastomer structures. Resistance to oil, chemicals, and solvents FIBROFLEX® is presenting an excellent resistance to oil and solvents and is, particularly, suiting applications in connection with lubricating oil and fuel. Typical data of chemical resistance are shown in the following table. Table 1: Chemical resistance Diesel Fuel ◯ Mineral Fats, acc. to additives + up to – Vegetabilic Fats + Animal Fats + Petrol (free of alcohols) ◯ Mineral Oils – depending on additives + Paraffin + up to – Rape Seed Oil + Lubricants on Mineral Oil Basis ◯ Soap Emulsions – Vaseline + Water at +95 °C – Water at +20 °C + up to ◯ + resistant = can be used ◯ conditionally resistant = conditional use – not resistant = not recommended Please note that blended oils and fats may have detrimental influence due to their various additives. In order to eliminate any risk, it is recommended to test the elastomer under exposure to any specific oily and/or fatty substance. Such tests ought to be run for several weeks.
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