Air bubbles when mud over paint.

joepro0000

Frank I think thats too much work. Any if your doing touch-up after finishing a wall thats primed and painted, you wouldn't want to do that for every touch up or patch. Mud it, sanding it with a sponge if you need too. Sponges get everything out good.

joepro0000

BTW, nice website. Has lots of good pictures. You just need to organize the buttons at the top.

Frankawitz

Joe Thanks, I have had someone hack into my site and change pictures and text, I get tired of going and fixing things, I have lost all kinds of pictures, but thanks.
As for the repair you say is to much work, well I would rather peel the loose paint then go and paint and bubbles show up and then you have to scrape them. I have had to many ceiling and walls give up all the paint. I have scraped kitchens, living rooms, well you know cause of the pictures on my site. But I have a system to remove the paint and it works out better cause once all the paint is off the plaster all you have to do is spot the room out then prime and paint, but to each his own I guess. I just don't like to take chances on my repairs, cause I tell people they will last a 100 years.
But the thing about paint peeling is that when water breaks that bond between the plaster and oil base paints the paint will bubble when new coat of paint is applied, so that's the reason I scrape with the razor blade.

Apple24

use durabond for cripes sake no drywallers here if you havent fiquired this out by know ya kinda slow. you can put 7 coat of reg mud and still get blisters, but i am a plasterer as well so i guess i have you cats beat.

Whitey97

I might as well put my .02 in....

things that I have found that work

1. yes fast type setting muds.
2. "prime" it with gaurdz, (i think that's how it's spelt) it's a sealer a lot like oil paint
3. trowel your mud on, scrape it off, and trowel less than the area you did the 1st time. don't ask me why, or how, but it works to reduce bubbles.
4. deal with it.

I do like some of your idea's though guys, I like the scuffing the paint idea, sounds like it would work, however too much work. As far as getting DB out, I would rather not dic with pulling out enough for a tray full, to use a little bit. Honestly, try #3. I do it quite regularly, and I've been doing it that way for about 10 years

brdn_drywall

o.k.
i've found the solution to the air bubble problem put the mud on how ever you like and use whatever compound you feel comfortable with because they will come oh ya the little bastards will come.
when they do widen your eyes ass far as they will go and stare at them with your meanest face and i mean GLARE at em and think over and over in your head go away you little bastards go away.
now the real trick to this is not to say this out loud because they will not listen and if someone is around and hears you they will think your crazy (i know this because it has happened to me and i almost got committed because of it)
now i know what your all thinking but you really have to give it a try before you disclaim it.

brdn_drywall

oh ya i almost forgot this trick works well for people who do not want to pay you when your finished only don't chant go away you little bastards in you head think pay or you will really regret what i'm gonna do to you in 5 minutes you will usually have that check in 3 mins. haha i solved two threads with this trick.

Tim0282

Good one! Might work, nothing else does...

brdn_drywall

haha tim just thought i'd take a change from all the gloom and doom recession talk plus everyone's complaining and arguing gets tiresome, adding some humor in the mix seemed like a good idea.

Tim0282

Have to agree with you.

Whitey97

I forgot that approach! yeah I used to use that technique, however at the end of the day, I felt really worn out and head hurt!

Tim0282

Exercise that brain to eliminate those air bubbles!

rebel20

first of all newbie in forum air bubbles do`'t have them here use Vario goes over paint with no bubbles

Muddauber

Wish I had some of that Vario stuff!

Whitey97

well you've got to be able to get it, look around for it dauber!

rebel20

Heard company in north carolina distributes it in USA

alltex

iagree don,t over think it, skimm them out .

D's

I've recently started using the spray adhesive in a can that I use to glue plastic beads. Instead of sanding the painted area to be coated, I just give it a quick spray with the can of 3M. This ensures a good bond with the new mud and reduces bubbles too - works great when tying into existing painted walls, and is quicker than sanding or priming. For my following coats - I lay it on, wait a minute for any remaining bubbles to form, and then swipe again to work them out.

There going to happen no matter what - just work your technique so they don't take up too much time.

D's

croozer

best way i have found to deal with the bubbles is to get the 80 grit out and sand off the "water proof" sealing agent(paint), then use 20 minute compound mixed with dirty water on a dirty board and trowel occasionally for the 5 minutes it takes to set(harden). This technique works real well and leaves you a great base to top over, with absolutley no bubbles, but be sure to brush off any dust after sanding before applying compound

MuDD

When i get air bubbles i Trowel the mud in all different directions to work the mud into the pockets works for me