Bathroom decorating problem

[winstonmin]

Hallo:

I have a wall near the shower in the bathroom which is painted with acrylic wall paint. Because of poor ventilation the paint has bubbled and cracked. I have scraped the paint and sanded, but the surface is cratered and also, when I apply more paint, this causes more bubbling underneath the new paint.

Can you tell me - is there any way I can remove the acrylic paint? Or any way to prepare the wall for repainting?

I should be most grateful if anyone can help.

Kind regards

[The Builder]

Usually, it's enough to simply do a lot of scraping, sanding, and maybe even re-skimming (plastering). I'd be more interested in why it reacted in the first place. Lack of ventilation is the first thing to look at. That must be improved, or whatever you apply will only do the same.
When you say "acrylic", I guess you mean artists' paint rather than acrylic undercoats or latex/vinyl paints?

[winstonmin]

To the Builder: Thanks for your answer. I made a mistake, it's not acrylic, it's matt emulsion. And yes, there is a problem with ventilation which has to be sorted.
Thanks

[Mosaic]

It sounds to me like the wall surface is just too damp for the paint to bond to it. It will carry on flaking off until the wall is dry.

[old-wos-is-name]

as builder said, you need to sand the wall flat, then i suggest you clean it with white spirit, then wash it with a mild washing up liquid solution, rinse, dry, then try again.

[ummmm]

Does the paint go powdery?

[GRUMPY]

What you need is paint especially designed for use in bathrooms and kitchens a little dearer but well worth it.As previously suggested rub down well and then apply white spirit and then sugar soap,followed by 2 coats of the paint.Of course the ultimate answer would be to tile the complete wall and then any condensation created will simply wipe down.Good luck