What's the best way to paint a plaster of Paris cornice?

Question

DIY home decoration help - Should I seal it first with PVA or simply apply paint directly to the plaster of paris? What kind of paint should I use?

Answer 1

just paint no sealer is needed

Answer 2

Plaster of Paris will absorb any paint that you apply. Because of it's soft texture it will flake and damage easily. You would need to seal it well to begin with and this would depend on the type of paint you are planning on using. I would suggest that you make a few tests, plaster pieces that you can test the different paints on to see how they hold up to poking and handling. Good luck. It is an interesting idea. Hey, if that doesn't work, have you considered trying paper mache?

Answer 3

* When the ceiling and coving are to be the same colour, give the coving a coat first, coming out about two inches onto the ceiling.
* Then apply two coats to the ceiling, if required, allowing time to dry between coats.
* Finally apply the second coat to the coving.
* Untreated Gibroc coving may require at least one extra coat.
* Plaster-of-Paris is best given a thin coat to counteract the porosity before applying the regular coatings.
* Intricate coving may require specialist brushes or even airless spray equipment depending on how complicated it is.

Answer 4

base paint first