Resistance to heat: up to a maximum of 80/90°C. Natural rubber can soften (after temporarily hardening) as a result of prolonged exposure to high temperatures; this phenomenon is due to the decomposition of the material;
Resistance to low temperatures: down to ca. -55°C;
Electrical characteristics: well-formulated compounds have an appreciated insulating power;
Gas permeability: high and therefore not suitable for this purpose;
Resistance to ozone, aging and weather: rather limited. However, it can be improved with the addition of anti-agers and anti-ozonants as well as protective waxes.
from good to modest against:
Water, alcohols, glycols and some ketones (e.g. ACETONE);
Glycol-based brake fluids;
Silicone greases and oils;
Diluted aqueous solutions of acids, bases and poorly active salts.
Not resistant to:
Mineral greases and oils;
Fuels such as gasoline for motors, kerosene and diesel;
Hydrocarbons such as propane, butane, hexane, light gasoline, heptane, and pentane;
Hydrocarbons in general;
Oxidizing agents such as nitric acid, chromic acid, chlorine, bromine, etc.
Fields of application
Technical articles of any type: tubes, gaskets, membranes, rubber and rubber/metal spring elements, motor suspensions;
Motor vehicle tires, conveyor belts, belts;
Articles of common use such as rubber boots, soles for shoes and heels, gloves, pacifiers, sponges, rubber threads, glues, etc.