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Posted by albee on November 7, 2006, 12:39 am
On 6 Nov 2006 17:57:08 -0800, "jeffreydesign"
>I am assuming that your bathroom wall is "smooth wall" that is, not
>'textured'. (If your bathroom wall is textured, you need to apply
>texture to smooth patches to match and blend with exiting texture) If
>your wall is smooth the patches will appear to be smoother since, as
>you point out, over several coats of paint some minor texture will
>naturally appear from roller nap.
That is indeed all it is; the nap from a few layers of paint. In fact,
it isn't just my patch, but you can see (most of the wall used to be
covered with a full wall mirror that we've replaced) a 3 written on
it, but as though it was written with joint compound? Very large and
thick, I imagine designating the room/wall/color. Probably original,
and that was the original mirror that they knew would cover it.
> The only way to resolve that problem
>is to treat the paint textured area as textured - you may have to
>literally spray some very light (and wet) texture on and around your
>patches to get them to blend in. This is tricky stuff best left to
>someone who has the artist's touch - because that's what it takes for a
>flawless job where the patch disappears completely. Another option that
>YOU can do is lightly texture the entire bathroom (sounds like a much
>bigger job than it really is) prime/seal (with PVA sealer) then paint.
>Done right, your bathroom walls will then look like new. You could also
>wallpaper to hide the patches.
Wasn't familiar with PVA Sealer; we just used a Sherwin Williams
primer that says it's a "waterborne, acrylic" primer. Doesn't mention
drywall or joint compound. Do I need PVA-based for that? I also have a
little Kilz2 that I used on some parts that had rust bleedthrough.
OTOH: in reading up on PVA, the Behr site said don't use in
high-humidity areas, I imagine like our bathroom? I imagine I need to
at least go over the patched areas a second time with the primer. And
for future situations, is it okay to spot prime just those areas where
patching was done, or does it/can it cause uneven coloring?
>
>Repaint as much as you want with different nap rollers and you will
>always see the patches because as you paint over the patches, you're
>also painting the original wall, building up additional 'texture'
>there. It'll show.
>
>If your walls are even lightly textured (like an orange peel, for
>instance) you can get some canned texture from the hardware store that
>will work pretty good if you take your time and experiement a little
>first so you get the desired effect. If you spray it on and it doesn't
>look just right, realize that as it dries it shrinks considerably and
>it may blend in after it dries. If it looks WAY wrong, thenjust get a
>damp cloth and wipe it off, start over.
>
>Just be sure to prime with PVA sealer after any new wallboard or
>texture, otherwise the paint will soak in almost forever and you'll
>always see a "dry spot" where your patches are.
Thanks for all the suggestions! Again, do I specifically need PVA
sealer? It's all over compound, as the wallboard used was so small
that I ended up with compound over all of it. Thanks again!
>
>-Jeff
>
>
>albee wrote:
>> A couple questions, if I could:
>>
>> -Just primed our bathroom walls, which included some areas where I
>> patched the drywall. In those places, the primer went on very smooth,
>> with no noticeable texture, as one normally sees (simply resulting
>> from the roller nap after painting). Is that because our rollers are
>> smoother than normal, or does primer go on thinner and hence create
>> less texture? So, should I re-prime with a "coarser" nap roller, or
>> when I do the paint will it likely match the rest?
>>
>> -Can one "spot-prime" areas without a problem. The primer can cautions
>> against it, saying that it will create uneven colors. Is that just a
>> sales ploy, or does it depend on the darkness of the eventual color
>> (primer is white)? The bathroom we ended up priming the whole thing,
>> but in the future any thought on if it's necessary?
>>
>> Thanks!
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