Our antistatic brushes are made from low charging materials and natural materials that are near neutral on the triboelectric chart. They neither give nor take electrons and, therefore, remain essentially electrically neutral. There can, however, be a slight charge created. In extreme voltage sensitive applications, these brushes should be used only in a liquid environment.

Item # 34118 & 34120 dissipative brushes have a surface resistivity of 105 - 1011 ohms, a higher resistivity than the conductive brushes, but sufficiently conductive to preclude any static build up in the brush. These are excellent tools to use in removing any static charge that will result in the adhesion of particles, such as dust, to an object. Frequent use of these brushes will keep electrostatic charges from building up on your products. Please use these brushes with a wrist strap or other mechanism to provide a path to ground for safety.

ESD Systems highly recommends wearing 2 foot grounders, one on each foot, to increase the integrity of the body-to-ground connection. Wearing a foot grounder on each foot ensures contact with ground via the ESD Floor even when 1 foot is lifted off the floor. This will more reliably remove static charges generated by human movement, and more reliably protect ESDS devices.

For enhanced safety from operator accidental contact with equipment line voltage, we recommend using foot grounders with 2 megohm resistors. Underwriters Laboratories and OSHA recommend a minimum of 1 megohm resistance to ground (RTG) in order to limit electrical current exposure to a maximum of 0.00025 amperes. When an operator, while wearing 2 one megohm foot grounders, lifts his/her foot off the floor, the resistance to ground (RTG) is 1 megohm. But with both feet grounded, the operator's combined RTG, in parallel, is only ½ megohm. That is, the wearer's equivalent resistance is halved and he/she may be at risk by being grounded with less than 1 megohm resistance to ground in case of contact to 120 or 250 VAC line voltage.

By wearing two Foot Grounders each with a 2 megohm resistor in series to ground, operators are better protected, complying with the UL and OHSA recommendations at all times. The operator's RTG is 2 megohms only when one foot is grounded (in contact with an ESD floor), and they do meet the minimum recommended resistance of 1 megohm RTG when both feet are grounded due to the equivalent resistance of 2 megohms in parallel.

All ESD Systems.com's Foot Grounding items with resistors have been tested by Underwriters Laboratories, and are UL listed.