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Nelly in reply to @Airhead

Thanks Airhead, good to know and makes life easier. Wasn't fun scraping off the affected area (literally hundreds of small bubbles all over the wall, real trypophobia trigger)

Interesting re Gardz - it is walls in question but filling was minimal. I thought it would be the undercoat because of the difference in how the walls reacted vs ceiling (no bubbles there). Both got a topcoat of Benjamin Moore Aura Bath and Spa but only the walls had an undercoat of Berger Matt Emulsion because the old paint was dark.

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Airhead in reply to @Nelly

Not sure without seeing the walls, there are a few things that could cause bubbling. Usually with filler causing it the bubbles are very small. 123+ is the latest version of the primer. It has a bit more body.

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Nelly in reply to @Airhead

Thanks @Airhead. Thought I’d scraped all the bubbles but more have been popping up post-showering. The paint was coming off in ribbons revealing the original paint underneath it.

Have you found the 123+ better than the normal stuff? When would you use Gardz instead?

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