While it’s possible to wash welding gloves, the exact maintenance process depends on the material used to make them; but leather is probably what you’re dealing with.
Before you start cleaning your welding gloves, you want to remove any potential debris from the glove’s surface. Welding gloves typically have metal residue that should be removed with either a toothbrush or wire brush with soft bristles.
You don’t have to be very meticulous in the step as you mainly need to remove debris that can easily come off.
The next step is to find a saddle soap designed for leather products. Put on the gloves, dip them in cold water, and rub some saddle soap.
Rub gloves so the soap covers the entire surface and wash them just as you would wash your hands. If parts of the glove are dirtier than others, apply some soap and allow it to sit for a little under a minute.
After washing your gloves, rinse any dirty water and soap residue, and wipe them with a clean towel.