I want to use Kiln on the sheetrock where an old (now dry) water spot
was. It's brown and slightly black spots in a small area of the
sheetrock. I was thinking to either apply 2 or 3 coats of kiln
before the correct matching paint or perhaps a little bleach on the
spot and allowed to dry before applying kiln. I might also lightly
sand the wall before either method. Which method do you think I
should consider to do?
I believe I've seen kilz in spray cans. For a small spot like yours,
just get one of them rather than a whole gallon.
Then follow the directions. You could probably also use gray auto
primer in a spray can. it's oil based so it will likely cover the
spot, and only costs a buck at Walmart or the dollar stores. It's a
light gray color so latex wall paint should cover it easy enough.
BE SURE it's well dry first, like let it sit a few days.
You mean KILZ, I believe. I would wipe the surface with pure
household/laundry bleach on a rag, and then allow it to dry for at
least 24 hours before painting. A hair dryer could speed up the
bleach drying process if you are in a hurry. Then follow the
instructions that are on the paint can.
It's been my experience that, once wet, sheetrock becomes soft and
powdery. Might be a good idea to dig it out and patch. Wiping the
entire surface with mild solution of cleaner and/or bleach should not
hurt...Kilz is a brand, not a specific primer. Any quality primer
should work just fine if used according to label.
I will consider this as a last option. The wet ... actually damp spot
is the size of a quarter and tho it's taking a LONG time to fully dry,
I would rather give it the time to dry. So far, the sheetrock seems
firm even in that remaining spot but maybe if I pushed really hard in
that small spot, it might collapse, dunno but I'd rather not do that
at this time. I think(??) that with enough time it will dry tho I'm
beginning to use a hair dryer to help.
Agreed and yes and yes. Roof vent pipe leak and repaired. Has not
rained since repair so spot should dry. Of course I don't really know
if the leak is repaired for sure until next rain but since it has not
rained, the spot should dry. I'd really like it to dry so I can paint
it before next rain so I know leak is fixed tho I can go back in attic
to check like I did the first time.
I'm going to keep your idea in the back of my head as the last resort.
Hopefully I won't have to do that but I appreciate your idea in case.
Somewhat true. It is a brand name, but . . . Most latex primers
will allow stains and wood knots to bleed through. Unlike regular
primers, Kilz has 10 different types, both oil and latex based and can
block stains far better than regular primer.
I think most of the major brands have "stain blocking" primers. I'm
just sayin'.....one important factoid is that they still require the
clean, dry, dust-free surface that reg. paint does. Some folks think
"Kilz" has magic powers and just slap it onto peeling paint or dirty
Clean the area with a wall cleaner (TSP substitute).
When you paint over Kilz (or any other glossy primer/sealer) the paint
will have a different sheen than the other areas of the wall. If you
want a good match, clean, Kilz, and repaint the entire wall. If that's
not a concern, go ahead and wash, kilz, and paint the stained area. You
can always go back and re-prime and paint if it doesn't turn out.
Black spots are probably mold/mildew and are below the surface where
bleach doesn't get to it. I would cut it out since sheet rock is
neither difficult or expensive to replace. Cutting it out from stud to
stud is probably the easiest way to go. This will also give you a
chance to inspect insulation and for other damage.
I had black stuff due to mold, and I thought that bleach would turn it
white. The chlorine bleach killled the mold, but didn't have any
effect on the color, and that's when I realized nothing said it would.
I don't know if you have mold of course, but you also don't have a
cotton or cashmere sweater there.
dss, I originally had a spray can of Kilz but it's oil based. I
realized that after the Kilz paint is on the wall, I want to match the
color of the wall. However the touch up paint I already have for
this, is a latex paint so I bought a few days ago a can of Latex Kilz
to use instead of the spray can. I will remember your advice just in
case tho. Thank you.
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