What is electrical conductivity of rubber? Electrical conductivity can be useful in elastomers if an electrostatic charge is to be avoided in the application. Vulcanizates can be made conductive during production by adding suitable additives, such as conductive carbon black. These additives are also called antistatic agents and are classified according to heteroatom into N-, P- and S-containing antistatic agents. There are also ionogenic and amphoteric antistatic agents, as well as neutral salts and other antistatic agents. Conductive silicone rubber can achieve a low contact resistance of up to 5 ohms with the right admixture.