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Registered:
May 2004
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Re: engine rebuild questions and painting questions
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Tue, 01 June 2004 09:53
 
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A base coat is basically a top coat, applied after your undercoat, prior to your finishing coats.
It is used so you don't get a patchy result, and you get a nice contrast / depth to your paint.
If your after a cheapo job, just use a nice DARK grey undercoat, and make sure it is even in colour BEFORE applying the top coat. (That is, if you rub back any imperfections in the undercoat, and can see a different colour showing through, give it another coat of undercoat!)
The metal acylics especially in the cheaper varieties also can let oxygen through to the layers underneath, which can lead to rust. (I had the unfortunate experience of painting an F100 truck for a friend, in light blue metallic acrylic. It looked great off the gun!, 2 months later the thing looked like a rusted out datto!, thankfully for my mate, he had sold it prior to that)
Make sure you have a shiny, surface before putting clear on however.
Another tip might be to use high filler primer. It helps cover up indiscretions in your body work. Just be sure to give it a few days to "cure" in the sun, prior to putting top coats on, as it can sink back, exposing sanding marks if it doesnt dry fully first.
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