Ray | 2009-08-14 | 2:43:08 PM wrote:

Some years ago I painted the interior trim in my house -- baseboards,
windows, door facings etc. First with a coat of quality primer, then
a semi-gloss latex.

Question: If I use exactly the same semi-gloss paint, do I need to
first use a primer or some other dulling solution?

I recommend that, as well as implementing Oren's suggestions, you clean
everything with TSP to remove oils and dirt that might keep the paint
from sticking. If you want to be thorough, you can use a liquid
deglosser.

--
Steve Bell
New Life Home Improvement
Arlington, TX USA