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MG MGB Technical - Removing wax and polish prior to painting?

Hi,

I want to sand some paint down prior to over-painting.

Apart from an isolator coat what is the best method to ensure that all the wax and polish is taken out of the older paint?

Ta,

Iwan
Iwan Jones

You certainly need some specialist preparation to remove silicone polishes, wet and dry is no good as that leaves embedded specs that cause fish-eye in the finished article. Google 'fisheye in paint'.
Paul Hunt

First, an isolator coat is used to prevent paint layers reacting with one another.
Second, go to a paint shop, they will sell a panel wipe solution to neutralise and remove silicone residue.
Allan Reeling

Dupont Prep-Sol 3919S always worked great for me.
Daniel Wong

? brake cleaner
Michael Beswick

Iwan
For the UK you might look for

Dow Corning OS-2 Silicone Cleaner
Wurth Clean Solve
Pre-Kleano

Note. None of these will totally remove silicon waz to 100%. I recommend washing the car thoroughly with one of the above prior to sanding and then again before painting.

Even with this. fisheye may still be an issue.

I always add a fisheye remover to my paint. This is what I use, but any paint shop should have a comparable product. http://www.eastwood.com/fish-eye-eliminator-pint-eastwood.html?srccode=ga220010&gclid=CPn-nLqqm74CFUNqOgodSmQAHw
Bruce Cunha

This thread was discussed between 06/05/2014 and 08/05/2014

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