ᐅ Repainting an Exterior Plaster Facade with a Limewash Coating

Abrissbirne Ch schrieb:

Does that mean a mineral-based exterior paint would work?

A silicate paint should also be fine, but please prepare the surface first with a lime glaze or silicate primer. All other paints only if you sand off the old coating. Otherwise, you’ll find lime paint for facades available in every specialized store.

Abrissbirne Ch schrieb:

Unfortunately, it was painted with lime paint in my case.

Unfortunately? That’s actually a great paint with many advantages and can be recoated almost endlessly with new lime paint. You might want to reconsider that “unfortunately” in your sentence.

Thank you all.
Do I need to wash off the lime, or can I just apply the primer directly over it?

Abrissbirne Ch schrieb:

Thank you all.
Do I need to wash off the lime, or can I just apply the primer directly over it?

I would clean the facade from any dirt first.
You don’t need to do anything more than that. Then just repaint.