On Sat, 10 Dec 2005 02:22:40 GMT, Norminn wrote:

:
:clipped
:
: Thanks. However, I see no mention of stucco in the MSDS PDF for Cover
: Stain oil based primer. I guess I should use something else. I don't
: know why, but they told me I should prime the stucco after a month. They
: didn't mention paint. This was my roofer.
:
:MSDS is chemistry, health and environ hazards. Click on the button for
:technical TDB, Technical Data Bulletin for your product. I think what
:your roofer meant was to wait a month before you paint. Mortar has to
:cure about that long prior to most paints. Leaving an interval of a
:year or two gains chalking and weathering of your primer and lessens the
:adhesion of the paint, which is the main reason to have a primer in the
:first place.
He said prime, not paint. Maybe he didn't know. As my correction post
said, I should have said the TDB, not the MSDS. It was the TDB I read
that didn't refer to stucco for Cover Stain. I believe their Bullseye
1-2-3 does say it's OK with stucco, but I wonder if it's adequate. I
think there are other primers maybe better suited. I saw a post (in this
group, IIRC) that mentioned Sherwin-Williams Loxon or X-I-M.

I don't know if this still applies, but Tinman1332 in this NG said in
1999:

Sherwin Williams makes a masonry primer that is designed not to react to
lime problems... Loxon or LoxOn.

X-I-M Products also makes a masonry sealer/conditioner/primer that can
be used... X-I-M Masonry Sealer/Conditioner.


There are others which will perform the job, these two are better at
resisting problems that may result from the stucco not being fully
cured. All of the products would prefer you wait at least one week
before applying.