Painting over Oil

[Jetta]

What is the best way to but a latex paint over an existing oil semi-gloss?
I'd prefer not to have to sand if at all possible.

Thanks,

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[noman]

Check out your paint department for products formulated to remove the gloss
which means it roughens the surface to give the latex something to adhere
to as in the nooks and crannies. They work so-so but for all the effort
light sanding is still the best. I have used the pads which look like pot
scrubbers and wet sand which is a pain but the latex does stick.

Jetta <jetta@*spam.bites*canoemail.com> wrote in article
<pQwS3.8431$it.2...@news2.rdc1.on.home.com>...

[Paul Broussard]

Jetta wrote:
>
> What is the best way to but a latex paint over an existing oil semi-gloss?
> I'd prefer not to have to sand if at all possible.

Sanding insures a good mechanical bond. To guarantee our work from not
peeling, we clean, sand and prime with an alkyd or acrylic primer on
interior and exterior work. Then topcoat with an acrylic. Countless
times I have encountered the latex over gloss oil dilemma and silently
curse the well intentioned DIY'ers and cheap contractors who would use
such a quick fix. The latex sometimes comes off in sheets, and at the
least will scratch off with a fingernail. Cleaned well, scuff sanded and
wiped with a good deglosser, today's better acrylic topcoats will stick
somewhat to old gloss oil paints, but not good enough for my uses.
Acrylic primers, like Zinnser's 123 stick very well, though.
--
Broussard Paint Contractors, friend of Bill's
"careful, we might learn from this"- Calvin