Bubbles when skimming over basecoat

3 Dec 2009
Reaction score
United Kingdom
I don't plaster every day, but I have done a fair bit recently refurbishing my house, and I can now get a near perfect finish on plasterboard. But anytime I go over bonding or hardwall, I seem to get occasional small patches where little bubbles form in the finish that can only be dealt with when the last coat is nearly dry. It can't be over-trowelling since they pop up in the first coat where i'm just whacking it on quick as possible, and I get a normal finish over most of the wall. Could anyone give me ideas on what i'm doing wrong and how to avoid it? I trowel the basecoat flat, wait for it to feel firm to the touch, scratch it, then skim same day without pva or damping down.
It's not a major issue since I deal with any remaining imperfections when I paint, but i've only got one little wall left that needs a basecoat, it may be the last I ever have to plaster, and if it doesn't turn out the smoothest wall in the history of creation, I won't feel I've really mastered the skillset.

Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links