You bite for fiber brushes / pickling brushes for cleaning weld seams. With brushes you can remove hardening colors from the welding process on stainless steel V2A / V4A / AISI 206 / AISI 304 / AISI 316 or similar material that is hardened and tempered. Brushes are designed for electrolytic pickling and use with mordant. You use them with a power source. It does not matter for our brushes whether you use AC or DC electricity. Brushes are intended for cleaning / pickling weld seams from the WIG, MIG, TIG welding process or for aluminum. With a usable fluid you can also use them for passivation and marking. For a longer service life you should use them in a PTFE tube (PTFE) and keep the working end as short as possible. The tubes are resistant to temperatures up to 160°C and are also chemically resistant. Our brushes are made from materials that are also used in electrical engineering. The brush protection cover is resistant to temperatures up to 160°C and chemicals. Color: Photo color