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Old 05-25-2009, 02:46 PM   #172 (permalink)
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Originally Posted by Daox View Post
...Careful painting foam, I think most paint eats foam.
Not polyurethane, such as Great Stuff out of the spray can, which can be sanded and painted.

The easy way to make such a mirror fairing would be to use a smooth plastic, perhaps Mylar or acetate, fold it over the mirror stalk, then spray the Great Stuff into the void and hold in place until the foam expands and sets up. That imparts the shape and smooth texture to the foam.
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