Terry, before I went into the project, using such product, I grabbed a cheap floor mat I had laying around. After dyed, I wiped it, scratched thoroughly with my nails, etc. My hand was clean as ever! So I took it the next day in my sink and let hot and cold water run over it, along with taking a courser wire brush along it. Water wasn't discolored, nothing on hands once again, and color was not faded where brushed. I'm picking up more dye tomorrow, so more pics may follow throughout the week as at the moment I plan on using it in the trunk, rear panels, rear deck, and "cockpit" carpet. Any more questions are welcome.