Elastomers made of pure natural rubber have extreme stretchability, ranging from 700 to 1000%. The elastomer is nearly non-compressible – it does not allow itself to be compressed – only displaced. Natural rubber is stable in acids, bases, water, alcohol and air, that is, in polar media. It has low media compatibility with nonpolar media such as petroleum-based oils, synthetic lubricants, brake fluids based on glycol, overheated moisture, and aromatic hydrocarbons (gasoline).Information provided by Freudenberg Sealing Technologies. |