more than one color

How do I go about dyeing more than one color on a disc? Lets say i want to do red on the top half and blue on the bottom with a not so strait line between.

[deckmike]

just mask off half the disc at a time. Die one color let it cure for a day than mask off the died half and do another color to the other half.

[Tino "SilverBack" Medina]

Cure for a day???????? Mask what you need, dye it, remove that mask and mask the other side, dye it. Done.