sanding...how much?? for reshooting same paint

F

fordman

Senior Member
(I am painting Nason Acrylic Enamel w/catalyst and have some orange peel that was painted last fall)

for reshooting the same paint, is it important to sand all the way thru the low spots in orange peel? when I think I am about finished sanding, I shine a light to catch the little reflections.

if I miss some of the teeny tiny spots, will they look bad or will they cover up?

thank you for your patience.
 
If you can see or feel them, when you paint they will show. The smoother your final coat, the more they will show. Of course, you can color sand again and then polish.
 
If you are sanding to reshoot using 320, 400 or 600 grit, some orange peel in the undercoat will not be a problem, but if you are color sanding prior to buffing,using 1000 grit or finer, all pits should be removed.
 
your paint job will be as smooth as your sanding job, paint doesnt fill it just covers, if you have a bump or pit and you paint you will have a painted bump or pit
 
Orange peel is caused by a reaction to a contaminant, wax, oil from your skin or hands, so the paint said Sorry pal I'm not sticking to that and reacted. With that being the case its important to chase the peel out so your can not see it any longer, it may well run into the primer. You run the risk of another reaction if you do not at least go deep enough to remove the oil or wax that caused the peel, so chase out the peel, clean well and shoot some base and watch for a reaction. You are going to have to watch this carefully and adjust your plan to how your paint reacts, there could well be a body filler in this spot that absorbed something and will leach it back out. In some cases you end up starting over from body work and filler. Play it by ear. or by eye.
 
Frank the plumber, you are confusing this with fish-eye. Orange peel has to do with the paint mixing, reducer used and spraying technique. That is the short answer.
 
im going to disagree with you on the orange peel in the paint, it is not caused by wax hand prints of contaminates, those cause fish eye or a large crater in the paint job, orange peel is caused by to much air pressure, to heavy paint, gun to close to the surface, surface to hot, or to fast of a drier not letting the paint flow
 
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