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Took me 6 hours to figure out why my mud was bubbling up on a ceiling job in Nashville

Turned out I was pressing too hard with my 12 inch knife and pushing air pockets into the compound, has anyone else dealt with that frustration?
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4 Comments
felixm29
felixm299d ago
And the thing is, once you realize it's the pressure, you start noticing it everywhere. Like I caught myself doing it on a flat patch last week, not even a ceiling, and I still had to check my hand because I was so used to mashing the knife down. The compound just squishes out the sides and leaves these thin spots that bubble up on the next coat. It's almost like the mud needs room to breathe and settle, and when you cram it down you're just trapping air. Hardest part is unlearning that habit because it feels like you're not doing enough work when you go light.
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johnson.river
Wait, you actually figured out it was the pressure causing it? I used to think air pockets were just bad mud or something wrong with the compound itself. But you changed my mind here because now I realize I've been pushing too hard too, just never connected the dots. I always blamed the batch or the temperature or whatever else was convenient. Seeing you break it down like that makes total sense though, and I bet that's why my ceilings look like crap half the time. Guess I need to ease up on the knife and let the mud do its job without forcing it.
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holly709
holly70910d agoTop Commenter
Wait... you honestly went 6 hours without realizing you were pushing too hard? That's wild to me, @johnson.river, because I did the exact same thing my first few times on a ceiling and it drove me crazy. I kept thinking it was the compound being too thick or the temperature in the room messing with it... never once thought it was my own hand doing the damage. Once I lightened up my pressure, the mud laid down flat and the air pockets just stopped happening. It's funny how we blame everything else before we blame our own technique, you know? You definitely changed my view on this too because now I see how simple the fix really was.
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val_ramirez
Dude, it took me a whole weekend of fighting with a ceiling before I figured out it was me and not the mud. I remember hating that job, thinking the compound was junk or my hawk was warped or something. Then I tried barely touching the knife to the surface on the last coat out of pure frustration and the mud just... magically smoothed out. No bubbles, no drag marks, nothing. Felt so dumb when I realized all that heavy arm work was just making everything worse.
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