Hey guys Has anyone experienced this problem of the dye running off the part during heavy perspiring/exercising? I have a bracelet that is made out of WSF that I dyed black. When I run it under cold water and scrub it with soap very heavily, the dye stays on and no residual comes off. However, when wearing the piece today I noticed that the dye was coming off and some residual was bleeding onto my skin during a workout session. Does anyone know how to solve this? I tried scrubbing any excess dye off and no luck with that. Would using a high grade automotive dye in the future work better? Any quick way to seal the model without affecting the nice matte finish that I have right now? Do I just need to scrub the model even harder to get any residual dye off? I think it is a chemical reaction more than a physical bond of the dye to the part. The reason why i think this is because I can douse the part in water and try to scrub it off with an abrasive pad and it doesn't come off. It only comes off if I'm sweating/perspiring...probably has to do with body oils and acidity in skin?