Bubbling drywall compound

Old 01-06-04, 08:53 AM
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Bubbling drywall compound

Here's a problem I sometimes run into when applying the final coat of compound.

The compound, shortly after application, sometimes develops tiny bubbles, that burst and leave tiny holes that then necessitate the application of another skim coat of mud.

What causes this and what can I do to avoid this nuisance?

Old 01-06-04, 10:46 AM
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Possibly a little too much mixing, getting too much air in the mud, but would probably come out in with the final sanding.
Old 01-06-04, 10:54 AM
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This happens to me if I try to skim the coat a little too thin. I'm not sure of the mechanics at work, but easing up on the angle of your knife will stop this.

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