Sorry, concentrated HCL is around 35-38% so you are looking for around half that as a final acid so 17% is about right.
I would suggest just doing a couple of ml of solution, you only need to rub a little on the area so dont need to mix much at all.
Good luck!
Cheers
Stot
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1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP
Build Started Jan 2013 : OTR Aug 2014 : Build Pictures
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