Home Brew Forums > Home Brewing Beer > DIY Projects > Other > Rust suppression in a radiator, suggestions?
Thread Tools
Old 09-29-2012, 12:35 AM   #11
Feedback Score: 1 reviews
Join Date: Mar 2011
Location: Fort Lauderdale, Florida
Posts: 246
Liked 9 Times on 8 Posts


Originally Posted by GreatWetNorth

I know distilled water is recommended for use in rads, but I have to disagree with the wording of that. The minerals may leave deposits that build up over time (which is why you use the distilled water), but the water itself is what reacts with the steel to cause the oxidization (which is why you also use anti-freeze or some other corrosion inhibitor). Yes ? No ?
I agree with that statement. Actually the more pure water is the more corrosive it becomes. We run in to this quite often in the commercial HVAC industry. The water removed from air in an air handler is pure and loves to eat steel condenser pans.

Kyled93 is offline
Reply With Quote
Old 10-02-2012, 04:35 AM   #12
Feedback Score: 0 reviews
Join Date: Apr 2008
Location: Sebastopol, CA
Posts: 971
Liked 34 Times on 27 Posts
Likes Given: 1


Originally Posted by Kyled93 View Post
.Actually the more pure water is the more corrosive it becomes...
Not so actually. Corrosion reactions are often limited by the conductivity of the electrolyte, which tends to increase with the amount of ions in solution. Corrosion is an electrochemical process... not at all like dissolving some salt in water.

P Glycol is a mild corrosive on it's own. Been using pure p glycol in di water with an off-the shelf tranny radiator for many years however. I would recommend an inhibitor if it was certified food grade etc. Have not done the research, but I'd bet the ones sold by micromatic etc are good to go.
StMarcos is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric Kettle Rust Douglefish Kettles, Mash Tuns, & Hot Liquor Tanks 17 12-05-2014 11:23 PM
Rust in new keggle/Help! NAZZ Kettles, Mash Tuns, & Hot Liquor Tanks 10 09-28-2011 03:53 AM
rust rust and more rust FML MrStrangeBrew Kettles, Mash Tuns, & Hot Liquor Tanks 10 04-27-2011 11:58 AM
radiator chiller millerkiller Chillers and Stir Plates 13 11-16-2009 04:13 AM
Rust on my Heating Element BuckyBrewing Brew Stands 7 10-11-2009 03:15 PM

Forum Jump