| abstract |
A cured fluoroelastomer part for use in oil and gas exploration and production comprises A) fluoroelastomer having at least 53 wt. % fluorine, and B) more than 20 parts by weight, per hundred parts by weight fluoroelastomer, of carbon black a nitrogen adsorption specific surface area of 70-150 m 2 /g and a dibutyl phthalate absorption of 90-180 ml/100 g. |