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Originally Posted by bobkoure
I'm using 10% - as specified by Valvoline.
I expect I could use less - but I wanted a full dose of the anti-corrosion package.
This stuff is also sold at cooltechnica - and they specify 5%, so maybe that's OK.
All that said, the Swiftech stuff is purpose-designed, so it'd be hard to go wrong with that, whereas using Racing Coolant is more of a DIY "this stuff is designed for a somewhat-similar application" kind of thing - not as out there as using toilet duck, however  |
Thanks for the feedback. I don't need the UV capability of the Hydrx and spending the $ for 2 oz's of the Hydrx (plus shipping) vs finding the the Zerex locally seems more appealing to me. I have to agree and believe the Hydrx is a good product though. Don't have a clue what
"toliet duck" is :shrug:
FWIW Arterius and "citric acid"... it is commonly used as an anti-oxidant in circuit board manufacturing usually in conjunction with 5-10% sulfuric acid as part of the pre-clean process of the copper clad laminates prior to photo resist application. The citric acid is typically 1-3%. It does bond on some sort of molecular level to the copper however and thus might effect thermal transfer properties eventually. We had to watch our customers habits on concentrations used and dwell times because it could inhibit our dry film photo-resist adhesion. Don't know what if any impact might be expected in our application.