Loop corrosion help / advice

cjgardens · 7 Jun 2011 at 10:19

Ive tried some anti corrosion the second time i re did my loop and it didn't work. I think you need to do it at the start. Once its started i think there.s no stopping it.

Mick-1965 · 7 Jun 2011 at 10:51

rjkoneill said:
fusion blocks.

bad asus.

very bad.

really? this is possibly the worst idea i have ever heard.
OP
dont do that.

Please enlighten me as to why its a bad idea.
Not having a dig I'm genuinely interested in your opinions to this reason.

cjgardens said:
Ive tried some anti corrosion the second time i re did my loop and it didn't work. I think you need to do it at the start. Once its started i think there.s no stopping it.

You probably didn't use enough. Or it was just the debris / oxidisation coming off the original corroded area that was mistaken for new corrosion.....dunno.

Ch3m1c4L · 7 Jun 2011 at 18:33

fusion block is alu, but copper plated. The silver top bit is in fact just recessed into the block.

ChrisLandin · 8 Jun 2011 at 00:50

cheers guys, there is no way im playin with antifreeze!!!!! Gonna have a play and see if i can change the top of the fusion block for another block. Something along the lines of an EK effort.

Mick-1965 · 8 Jun 2011 at 10:14

ChrisLandin said:
cheers guys, there is no way im playin with antifreeze!!!!! Gonna have a play and see if i can change the top of the fusion block for another block. Something along the lines of an EK effort.

Why are you so scared of antifreeze ? Is it because RJK says its not a good idea. I know he is well respected in this part of the forum, no disrespect RJK but to come up with a bold statement without giving any reason kinds of says, maybe you are misinformed this time.

As you probably know, antifreeze was designed for the automotive industry to serve 3 main purposes.
1. to increase the boiling point of the coolant
2. to decrease the freezing point of the coolant
3. to prevent corrosion between the component parts in the cooling system. ( specifically Copper, Aluminium and Iron/steel )

Why not to use antifreeze
90% of PC water cooling systems all being single metal, using pure water and a silver coil is all that is needed, antifreeze serves no beneficial purpose.
It worsens the heat transfer into the water ( You'll lose probably lose 1/2 oC @ 15% mix, getting even worse the higher the concentration )
Its not a very good biocide.
It can be poisonous, if you drink enough

So why use any antifreeze at all ?
As above, antifreeze contains a very good corrosion inhibitor, specifically designed to prevent corrosion between mixed metals ie copper/aluminium .
So in your case adding antifreeze this is not "the worst idea ever".

Just as an example,
I have 2 systems water cooled, one of those has two radiators one aluminium and the other copper, an aluminium pump and copper blocks etc.
That has been running a 15% mix of antifreeze and a silver coil for at least 5 years and there isn't a hint of corrosion or any coolant discolouration.

I think over the years (you know how Chinese whispers work) people have mixed up "no point any more using it" to "DONT, must NOT use it".