removing texture, wet vs dry?

miket

smart!

edit: the dust did make it more difficult to skim coat, i believe the wet scraped was worse than the pc sanded ceiling when it came to dust, still on the ceiling lol.

Why would you use kilz instead of a cheaper drywall primer when your going to skim coat anyways? A stain blocker isnt needed.

Would you guys recommend a PVA type primer to lock the dust?

miket

I blame my father for doing the large ceiling with the PC sander. I recomended we try a little of both first to see how it worked but he picked the sander and went with that.

We did the small bathroom dry because we were afraid of messing up the old paper wallpaper with all the water. He closed the door and scraped and sanded for a half hour. I waited 10 min for the dust to settle then i cleaned for another half hour.


In the third medium sized room he scraped the ceiling wet, he said it created alot less mess and was so much easier!
I did notice that wet scraping pulls more compound out of screw holes and such.

Edges are brutal. As you go toward the edge the last couple inches slope down a bit and then teh last 1/2"-1/4" goes way up so theres a slight ridge and then a gap. The tape paper is showing of course. Its not really consistent in the other direction either as the celing line waves up and down along the wall. The corners are just um weird. And then i have to bring down and straighten the ceiling line while preserving the wallpaper lol. Theres lots of bows and dips in that celing too.

edit: still glad i have the pc sander for sanding the skimcoat.

miket

I am definitely a fan of 20-90 minute hot mud for anything deep. I hate shrinkage and also heat guns lol.

Whats the difference between topping mud and usg all purpose? Do you guys add soap to your mud? I saw lafarge rapid coat at lowes, how does that stuff compare?

A+ Texture LLC

Yes, but it gets to heavy and a lot falls on the floor anyway, I break the bag thing off. As for the PC it's a waste of time. Take a manly floor scraper and knock the "tips" off and then the water can penatrate it. Garden sprayers suck, a hose works better but it does look really unprofessional. A customer doesn't want to see that. Use an airless paint sprayer with hot water at about half pressure.

miket

We did way too many touch ups, way too many times on the big ceiling so we skim coated the other ceilings.
Thats neat that you can spray a high build primer and backroll to get level 5. I assume you need to start with quality level 4 first lol.


How do you guys apply skim coat mud? Trowel like the plaster guys, roll it,some box thing, or spray it?

How do you smooth it, wide trowel, knife or squeege?

Does you technique change between;
regular Old walls that have lots of minor imperfections and some roughness but are in good shape.
Really damaged and rough gouged wallboard from bad wallpaper removal.(had to deal with that upstairs)
Ceilings that are flat but rough from remnants of scraped heavily painted popcorn texture.
Ceilings that are now scraped smooth but were poorly rocked and bow hollow and wave alot making things more diffiult.

miket

I think that would work unless the texture has a whole lot of coats of paint which ive run into on occasion. Garden sprayer makes sense for wallpaper removal in a small bathroom, or for spraying bleach to kill mildew, but for a large ceilign thats going to be sprayed with an airless anywyays that makes alot of sense. Enough sense you can probably hear me slap my forhead from over there lol. What size tip do you use for water? Biggest tip i have in my box right now is 519.

edit; Id never use a garden hose in house lol, but ive heard on the internets that the kind with the plastic male threaded ends dont cut or mess up the rubber washers and cause leaks as fast as the cheap sheet metal male threaded end kind.

A+ Texture LLC

It will still work if it's been painted a few times. Taking the floor scraper knocks the tips of so the water can penatrate it. I use to use a 415 but help chucked it by accident. Right now I've been using a 515.

betterdrywall

I just use my airless to wet the ceilings down, If there is wave's or dips, smaller knifes help prevent damage to the paper face of the board. I take my time and scrape as clean as possible. Then sand with PC.

Axecutioner-B

This is what we did to get rid of the popcorn in my house & it worked great !! We tried using a little pump sprayer & it just didnt get it done so we grabbed a garden hose & misted the whole ceiling... & voila! Worked real good IMO
________
Club Royal Condominium Pattaya

Workaholic

Interesting thread. I know it is old but I have been thinking of other options lately rather than the wet method.

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Capt-sheetrock

Its like sex, work,,,, can't beat the wet method

The long and the short of it is this,,,,,,, If its been painted,,,your screwed,,ain't really any decent way to scrape it off, at that point,,,just hang over it. If it hasn't been painted,,, just mist it with a garden sprayer and scrape it off with 6 or 8 inch knife.

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moore

You can't eat through the paint with the p/c sander??
I've been told ya can..[ wouldn't know myself,,no p/c.]

Capt-sheetrock

Not really,,, you can get pc discs down to 80 grit,,,but after you sand it with that,,,ya still got to skim the dern thing. Been my experience anyhoo

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Workaholic

I think you guys should give up the PC sanders and try Festool options with the Extractors. The below pic is of me trying out the Festool Planex in Indiana.

This drywall sander is not available in NA untill 2012 but there are other options.

I have no doubt the Planex can eat through paint and will leave a very limited amount of dust.

Attached Images

planex.jpg (78.7 KB, 0 views)

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moore

''I have no doubt the Planex can eat through paint and will leave a very limited amount of dust.''



Still got to level It out..and that takes lots of mud,,,and time..no matter how flat the sanding job may LOOK..I don't know ..just TOMA!!

Workaholic

I am thinking of trying a mostly dustless sanding sysytem and then coating the joints and screws with mud or possibly floating the the entire ceiling and then sanding with Festool again to provide a mostly dust free service.
Less mess more money.

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2buckcanuck

Gee worky, you doing more and more taping, planing on coming over to the Dark side too

For all the yak about power sanders on here, and my own personal research I did on them, the festool seemed to impress me the most. But !!!! think they had a crazy price tag on it, like over 2,000. Also, heard they won't sell sander separate from the vacuum, it's a package deal.

Maybe you may know about the details on them

Or maybe your a Festool salesman now

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moore

Just so ya know.. That guy to the far left is looking at your butt....gotta watch them suits dude !!! There a weird bunch!

Workaholic

I am taking more taping jobs these days. I also turn down popcorn removal jobs through out the year when I am busy enough to not want to deal with the mess.

Yes the Vac and machine are a package deal, it is a very nic set up. If you do much commercial or a lot of occupied houses through out the year it seems like a small price by the end of the year.

I took the opportunity to visit their Indiana facility for a work shop and was skeptical of the price and availability of their products prior to my arrival, after a day there I got a good feel for their products and met some nice people which got me thinking of how I can incorporate their products into my business so that I can be more efficient and sell a cleaner service.

They would never let me work for them, all I would want to do is play with tools all day.
As long as I made a good impression lol.

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SlimPickins

Those guys seriously take tools to the next level. They understand how much time is spent cleaning up and working in occupied environments, and have developed their system to remove a sizable portion of the mess. I cut some flooring in a woman's home with my Festool rail saw connected to my Fein vacuum, and the only mess I made was a few small shavings spitting out in front of the saw....no dust anywhere. All the masking I did in preparation for the "event" was wasted time and energy....a light sweep was all that was needed. It's not only that their tools hook up to vacuums, they're developed to really capture dust and funnel it into the vacuum port. I love Festool. Yeah, I totally just said that...(hear that Festool? I LOVE your tools.....I sure wish I could afford a Domino so I could tell everyone how amazing it is)