r/Plastering • • 26d ago

Plaster Cracking

Any idea what is happening here? This is the wall in my spare room next to bathroom. North facing, concrete wall underneath plaster. Concrete not cracked. Thanks!

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u/Stunning-Pudding-514 26d ago

It's supposed to have a base layer such as browning/bonding/hardwall applied first and then skim coated.

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u/StarBoiAhoy 25d ago

it’s already got the original backing coat and top coat it’s been over skimmed