
how much it would stain your rads and blocks having to use that much dye.

eew so black dye is out the window anyway. how do you find trapped air in a loop if you don't have transparent tubing?

Black dye is a mix of Deep purple Dye and yellow Dye.
If you willing to hold on a little OCUK are going to be stocking our whole range this includes dyes and every thing we make.
TO make it is quite simple.
add as deep purple dye to make you liquid in you tube a extreme deep purple. then take the yellow dye and add one drop at a time until you reach the perfect black you need.
The same can be done with pastel pre-mix as well how ever its a lot more tricky and take up to 3x the amount of dye.
![]()
Thanks for replying Mlwood.
could you tell me about your aurora galaxy purple, it says it doesnt contain any dye, does that mean it wont stain anything, and how long can i keep it in the system for?
Mayhems is the ONLY coolant i would ever use (after using 5 other brands)....but for colour unless the bling factor is all your after i would just get Mayhems pure![]()
Mr wood is one of the mostly highly regarded experts on coolant but for me WC is about function and not looks so i would never put and coloured fluid in my system again. Saying that some of the pastel fluids available at the moment (the white especially) look amazing.

(i do it every day when we get requests for sponsorship).
.