Thanks for the "secret!"
I just ordered a small bottle of India Ink to try out, guess I better make sure I have enough rubber gloves on hand... For the price, it'll be worth a shot. I'm planning on using it as a final process to polish custom billet auto badges.
Got to love it when NASA discovers a low-cost solution to a problem, don't think I've ever heard of a gov't program that could do that. sure hope the person who discovered the process doesn't lose his job.
