This conductive applicator brush has 0.003" stainless steel wire and a lightweight, chemical resistant, non-magnetic, stainless steel handle. All components of this brush are FDA and RoHS compliant. Manufactured using strong mechanical clamping for maximum wire retention, and is adhesive-free to prevent contamination on surface areas that could be caused by leaching. This high quality brush has a trim of 1/8", handle dimensions of 3-1/2" length x 1/8" diameter, brush width of 3/16". This brush has a maximum use temperature of 900-Degree F.