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Yes you can. You must first paint over the old plaster with a product such as Eucoweld, which chemically adheres the new plaster to the old.
they paint on to wet plaster so it lasts longer and sets when the plaster sets.
What dries fast is not so much the paint, but the fresh plaster on which the fresco paint is applied. And as the plaster dries the paint unites with it.
It is not recommended to mix paint with plaster because it can affect the integrity and overall quality of the plaster. Paint can change the consistency of the plaster, leading to issues with drying time, bonding, and the overall finish. It is best to apply paint over dried plaster for a smooth and durable finish.
by a normal plaster from the shops and paint it green.
First you have to determine if is in fact a painted pool. If it is a plaster pool then usually there is no paint unless it was painted because of age and damaged plaster. You most likely do not want to paint a plaster pool - have it acid washed to clean plaster. Not sure how to determine what type paint. You would have to have the paint chips anaylized to determine if it is a chlorinated base paint or epoxy paint. Ken
Painting on dry plaster as opposed to painting on wet plaster. Painting on wet plaster is more permanent because the paint is infused with the plaster.
Yes,you just need to patch the plaster first.
Older plaster walls may contain lead-based paint, which was commonly used before the 1970s. Lead-based paint can be found in layers of paint on the plaster walls. It is important to test for lead before attempting to remove or disturb the walls.
No
It is recommended to wait at least 24 hours before painting plaster of Paris to ensure that it is completely dry and set. This will help prevent any moisture from affecting the paint application and the plaster's durability.
What you are calling "car paint" is probably lacquer based, and would really soak into a plaster ceiling. If you are doing a design or something, this may be appropriate, but other than that, not good for coverage.