Coolant is slightly absorbed by PETG but that doesn't mean it should leak through.
See this thread for answers by Mayhems: http://forums.overclockers.co.uk/showthread.php?t=18736564
I'll just deal with it when I do the 1st round of maintenance.
Stunning build, really like the case.
Cheers bud, I went for a simple and clean with parallel lines look to try the preserve the design of the case.