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#1 Header Tank Anti Corrosion

Posted: Sun Aug 24, 2025 4:22 pm
by Pete G
I have bought a new coolant expansion tank to replace what has become little more than a colander.
What can I do to prevent rust on the inside of the new steel tank?
Thanks

#2 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 1:55 am
by DWW
Image

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#3 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 7:09 am
by mgcjag
Just make sure your coolant contains a corrosian inhibitor...Steve

#4 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 7:15 am
by caveman
Go for aluminium, in black powder coat you won't tell the difference.
https://www.radtec.co.uk/shop/makes/jag ... ader-tank/

#5 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 7:22 am
by mgcjag
The poster has already purchased a tank :shrug:

#6 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 11:20 am
by caveman
I can read :doh: My point here being, you can always send items back and purchase a better suited item.

#7 Re: Header Tank Anti Corrosion

Posted: Mon Aug 25, 2025 12:27 pm
by DWW
My tank from a usual supplier and coolant with corrosion inhibitor lasted for two years before springing multiple leaks. This may have been a one of but still…..