Quote:
Originally Posted by look 171
Exterior paint resist fade a bit better then indoor paint. I think it has more pigment in it
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And additives. There are regional differences in paints. If you buy SW in the South, it will have a mildewcide (or did). In AZ it's more sun and heat resistant with less focus on moisture problems.
In another category is gloss and hardness. Exterior paints don't look that good on interiors. Some will still use a high gloss on interiors but they are just using an exterior paint for all I know. On the flip side, no one looking for longevity would use a satin egg shell finish on the exterior intended to have a soft look.
There are, of course, flat paints for the exterior but they have different resins and filers. The pigments all come out of the same mixing system. You won't find a difference there.
And as likely as not, you will see paints labeled "interior-exterior."