When selecting a paint primer, is the primer selected on the
basis of what it is to be going over (e.g. existing latex or oil paint), or
what will be painted over it as a finish coat ?
Or, are both a factor ?
What you are priming is how you select it, but I would not use latex
primer and oil topcoat, on exterior I would not use latex primer, just
slow drying oil. Everything must be compatible, buy your stuff at a real
paint store for real advise.
Primer is primer - oil or latex topcoat can go over oil or latex
primer. The difference is what it's going over. If it's new
construction, either will probably work ok. If you're going to paint
over knotty wood, water stains, crayon or pencil marks, etc. they will
bleed through latex primer so you should use oil based primer instead.
Get opinions from the net, but get professional advise from your local
I have a thread going on an old door. When I was at the hardware store
today, I got latex primer and latex finish paint for exterior because
I'm tired of messing with cleaning brushes and the mess the oil-based
I'm already using Rustoleum primer and paint (oil-based) which requires
mineral spirits, messy, on another project.
If I keep my project painted with latex when it needs it, what do I have
to worry about other than everything wears out eventually?
If I have the time and patience, I really like the oil-based paint
finishes better. People seem to notice a difference in the quality of
the finish and feel of it.
To do it right, it takes a heck of a lot of time and work, one coat of
primer and preferably two finish coats. I paint with a brush because
I'm leery of sprayers getting clogged and don't want to spend the money
on one now, plus the waste (maybe if you spray some things right, there
isn't much waste). If you use oil base and don't clean those right,
your sprayer is ruined. Maybe even latex ruins it. My son had one, a
friend borrowed it, didn't clean it up right, and ruined it. Maybe
there is a way to get them working again, but who needs the extra
hassle? It's hard enough to finish things as it is.
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