Air Bubbles in Drywall Mud

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Old 10-09-19, 07:25 PM
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Air Bubbles in Drywall Mud

After sanding, I am having an issue with air bubbles showing up in the drywall mud. I typically only sand after the 3rd coat.

I am mixing the mud, after adding minimal water for thinning, with a paddle mixer on a drill. I did not notice any aeration or air bubbles in the mud after mixing.

I am definitely an amateur, but I have finished two other rooms without having this issue.

Any suggestions? Will a thin coat cover the existing air bubbles?

Thanks!
 
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Old 10-09-19, 07:44 PM
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Bubbles often occur when water is added and a paddle is used to mix. But yes, a couple more thin coats and they will disappear.
 
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Old 10-10-19, 03:16 AM
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It's not all that uncommon when the mud is mixed with a drill. As noted above a thin tight coat of mud will fill the depressions.
 
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Old 10-11-19, 06:02 PM
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Is this new drywall or have you gone over a painted surface. Sometimes bubbles form over paint. Seems like it has something to do with water only being able to evaporate outward. Fix is the same as mentioned already.
 
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