A.Mutt got me thinking about all the possible applications of oil-based masking agents. Say you were to do a 3-color (red, blue, yellow) dye on a white disc. Can oil help? This is my thought:
Step 1: weed and dye the first color.
Step 2: coat the first color with a thin layer of veggie oil, and let it "dry" to gumminess like oil does.
Step 3: weed and dye the second color.
repeat 2&3 for the third color, then wash all the oil off the disc.
Hmmmm, as I was writing this I reminded myself of Elmer's glue- perhaps that would work better than oil, and it would cure a lot quicker. Didn't BennettUA say that Elmer's glue takes some of the dye out of the plastic, but not enough to cause a problem?
Would you even need to let the oil dry, or would it travel to other areas of the disc whilst dipping?
Another problem I can foresee is contaminating your dye with oil, but it shouldn't be TOO hard to get the oil out with a paper towel laid on the surface of the dye. Could be messy, though.





