Materials with the addition of antistatic substances in simple terms known as antistatic materials. Surface properties of such antistatic materials are changed in such a way as to prevent its picking up static.
This is a valuable feature since the accumulation of electrostatic loads is not desirable as it attracts dust particles. This in turn can make it difficult to machine the product and can also lead to arcing, which is especially dangerous in the presence of dust and gases as it may lead to explosion and fire.