Highlighter Fluid in your Coolant = BAD?

I don’t know but I am fairly certain when my younger sister was… well younger she used to have bottles all over with water and highlighter ink in them next to backlights because they looked “cool” The reason I mention this here is because I recall noticing after a few months the bottles would develop a nasty kind of film (perhaps the ink staining the glass bottles) developing on the walls of the containers. If this film bonds so readily to glass I can only imagine how it might bond to the internals of a cooling system. I wonder if over time this film might degrade performance. Anyhow just wanted to mention it beacause i see more and more users using this method with uv light setups instead of using the real UV dye.

I think that might be because she probably used sink water right? and becides that had no antigoie additives(antifreese or water wetter etc.)

I have been running for quite a while on highlighter and its working well, I should search my post and check the exact date.

-edit-
Its just over one month:
http://www.ocforums.com/showthread.php?s=&threadid=250236&highlight=highlighter

Jon

I used yellow hi-lighter for at least 5 months on one of my older rigs and it didn't degrade performance or form any hi-lighter film. No clue how much I put in but I let the whole (somewhat used) stick soak completely in the water.

do the blue highlighters behave the same way as the yellow ones?

that would rock big time

I've tried blue but it doesn't glow very well. Same as red/pink and orange.

Im not going for a glow, im just going for the color. Is it a nice dark blue color? and does the color hold? or does it fade quickly?

It's very light and faint. It doesn't "dye" the water like uv/color dyes you buy.