UV dyes deep red and dark purple

http://www.primochill.com/additives/dyes.html

or

http://www.frozencpu.com/cat/l3/g30/...yes-Page1.html

so these are what you would recommend?

(curious) why over any other brand?

Both are good

hmm nice anyone else?

i might get one from each just to try

this stuff is ftw and won't fade. You can make it red or purple depending on how much you put it!

http://www.petrastechshop.com/peuvreddye1.html

I have use the Primo chilled dye bombs with distilled and a few drops of pt nuke. I let it run for a few hours it almost completely dissappeared. I flushed the system and refilled and after running for a while the water gets a blue tint. I have to clean out the blocks because thats where it all is. I have tried the UV blue tracer dye and it works great but I dont think they sell UV Red or Purple.

If you're looking for a DEEP purple, you might try the Feser Black dye and just use a little.