I'll be painting my new room addition in the next few days and am still
in a quandary over whether to use a latex or oil based primer. The
addition itself will have a flat latex final coat, while the adjoining
kitchen will have a semi gloss topcoat. All areas are new drywall.
Any advice appreciated!
At big box stores such as home depot, they sell latex or acrylic primer
especially for the first drywall coating. Maximum adhesion of final coat,
and good wallboard sealing features. Technically, whether you use latex or
oil topcoat, any formulation of primer, oil or latex, will work fine as an
undercoating, but since there are formulas just for new walls, you might as
well use them..
And, there are some "latex" primers that are touted as acting as vapor
barrier. No significant difference in price, IIRC.
For best results, you might even want to apply (2) coats to the
wallboard joints- a light one on the joints, then the whole deal.
In case you werent aware, there are specific primers
for new drywall. They're supposedly formulated to give
the best adhesion/coverage for the drywall/joints etc.,
and IMO worked well.
It's been a number of years since I've used it, but
as I recall it was a latex primer, or at least water
based. As long as you don't ever plan to use oil paint
on it, which would be unusual in my opinion, a
made-for-the-application makes the most sense to me.
I do however use oils on woodwork, things like that.
But for the walls latex seems far more available and
with a lot more colors/finishes to choose from.
You can use either but latex is preferred for new drywall especially as
you will be using latex topcoats. Personally, I always use the pigmented
shellac known as BIN made by Zinsser. You have to deal with the flammable
alcohol fumes when applying it but it dries in 1-2 hours so you can start
The question came up very recently - Benjamin Moore's website has
product info with technical stuff for all their products. One said that
latex primer is preferred for new drywall, and they had the specifics
for one of their many primers. You can probably put oil or latex over
the primer. Check with a decent paint store.
Use Kilz primer and sealer. Sold at all Home Depots, works great and you can
even have it tinted with your base color to help with the final coat. I use
it and I usually can get away with a single coat of final coat. It will
also block out most stains from reappearing. Costs about 12.00 gallon. Can
get it in 5 gallons too.
A latex primer and sealer will work just fine, regardless of the finish
Even so, I highly recommend TWO coats of primer on walls and ceilings.
The extra coat goes a long way to ensure an even sealing over the entire
wall, especially if latex paint is to be used for the final coat. What I
have found is that areas where there is mud compared to where there is
just plain drywall will absorb the moisture from latex paint differently,
making them dry differently, which makes them more visible. Two coats of
primer helps ensure a good even sealing of the surface.
In our home, baseboard and trim were primed once before being installed.
They were all installed after the first coat of primer was done on the
walls, then nail holes and joints were filled and sanded. The second
coat of primer went over the walls and trim together.
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