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Posted: Wed Aug 05, 2015 10:27am

Post Subject: Touching up paint

What is the best way to touch up external paint?


Posted: Wed Aug 05, 2015 11:51am

Post Subject: Touching up paint

That rather depends upon how deep the damage is and how long its been there. If you have many layers of paint and the steel has rusted then you will need to abrade the area to remove as much rust as possible, then probably use some form of rust treatment. Next apply a couple of coats of anti-rust primer and build up with undercoats so the damaged area is level with the paint surface. Alternatively you could use car body filler before or after the primer to build up the surface. You may need to use very fine wet & dry paper (say 400 or 600 grit) on each layer to give a key for the next layer. When the surfaces are level rub down the area with fine wet and dry followed by at least one undercoat and one top coat. If it is new damage and not too deep use a soft artists' brush to touch in the area with top coat. Whatever you do you will almost certainly find the new paint in now way matches the old, even if it comes from the same can as used to paint the boat. The best you can do wait a few weeks for the paint to harden and is to use fine abrasive paste like cutting compound over the area to try to cut away old faded paint in a manner that feathers the faded paint into the no faded. Then make sure you give the area (or better still the whorl bot side) a good wax polish. Unless you are a painter please do not expect too much from your efforts. Keeping rust at bay should be your number one concern and cosmetic appearance comes a long way behind.

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