I have a Model Year 2006 Freelander TD4 and have acquired some spare 17 x 7.0J Alloys for additional tyres or winter tyres. (Yes they do fit ok: correct P/N for year, 5 x114.3 PCD and ET46!) The outside faces are unblemished in the usual LR Silver Sparkle finish, and under where the tyres seat is also perfect.
However, having got the brake dust off the inside of the wheels, there are a few 20-40mm diameter patches where there is a bit of paint blistering, and the aluminium is starting to corrode just very slightly.
So, does it matter if there is a bit of blistering on the inside (I think that alloys are overspecified structurally anyway so that some sacrificial corrosion can occur without real harm) because they will only have occasional use or should I be cautious, remove the blistering and recoat the insides of the rims as a preventative measure? (It's obviously uneconomic to have these professionally recoated).
Any advice on primers/final coat/brands of product would be much appreciated. I couldn't find a wheel forum, so this was the obvious place to ask, especially as Series owners will be well used to painting aluminium.
Also, what is the impact of additional coating on wheel imbalance? Presumably thin coats all round (inside only in this case) is desirable rather than only spot-coating on the blistered patches.