Break out the old plaster and plaster over the area to seal the plaster surface. It is best to lower water level in the pool first but there are patch materials that work under water.
No, you plaster or mud it first.
lath and mortar walls and ceilings have a greater flexibility than standard plaster. If you do plaster over it you firstly need to be very confident that the old mortar is sound and fully adhered to the lath. You would also have to seal the ceiling well to stop the water in the plaster from literally being sucked out of the plaster. Regarding tiles. If you are thing about ceramic tile then NO!. The weight of the tiles would pull the mortar from the lath with great ease. It is defiantly better to either plasterboard directly to the old ceiling and using dry wall screws NOT NAILS screw directly to the joist not the late you can then put a good scrim tale over the joints and plaster accordingly. The very best option however, is ...............drop the old ceiling, re-board and plaster
Asbestos used to be used in the plaster mix to help strengthen the plaster. So if you are ever renovating an old pool with plaster it is best to have it tested for Asbestos.
You can, but if the plaster is uneven at all, you should nail on 1x4 first to mount the drywall onto.
The finish plaster is normally white all the way through. It sounds like you are dealing with a pool that has been replastered by the method of putting a "brown coat"/"scratch coat" (the gray plaster you noted) over the original finish plaster surface, and a new finish coat of white plaster on top of that. The scratch coat more like a thin concrete than plaster (doesn't have the white marble dust in it) and is used to get a better bond to the old surface.
Over Your Head - 2006 A Pain in the Plaster - 2.26 was released on: USA: 29 December 2007
No, the plaster can be patched. But how good the patch looks depends on several things like the color of the plaster, its age, and the person doing the patching. New, white plaster would be the easiest to patch while old, colored plaster would be more difficult to do satisfactorily.
Over Your Head - 2006 A Pain in the Plaster 2-26 was released on: USA: 29 December 2007
Over Your Head - 2006 The Disaster of Plaster 2-39 was released on: USA: 28 June 2008
Paster of paris is a form of drywall, so I'm unclear on your meaning except possibly you have a wall with plaster over lath and want to cover it with drywall. You can find the studs electronically and go ahead and attach drywall to the face of the plaster with extra long screws. - Personally, I would rather repair whatever is wrong with the plaster and lath.
a fresco. (fresco is italian for "fresh" referring to the fresh plaster that has been applied to the wall. This is opposed to "fresco secco" which is painted over dry plaster)
Paintings on plaster is called 'Fresco'. It is painted when the plaster is still wet. Leonardo da Vinci's 'The Last Supper' would be one of the most famous frescos.
The fittings might need to be replaced. The plaster can be applied over the old plaster. Remove the lights and covers and tape them up. A pool plasterer would give you info on the replaster. It's not really necessary to talk to a pool builder about this, but the plasterer.
yes to keep you calm
I use basic drywall primer over all of those.
Yes and no. Short answer is you need to apply a bonding agent to the durock so the plaster will stick. Blueboard is chemically treated to accept plaster, durock is not so it will just fall off without a bonding agent.
Kal-Kote Finish Plaster is a white finish plaster that can be troweled on and left with a smooth or textured finish, over base coat and on top of blue board. We also use this plaster when we are resurfacing existing walls and ceilings that have been prepared using plaster washers and fiberglass mesh tapes over the cracks, and gluing the entire surface with "Plaster Weld " ( a Larson product ) to create a bond over previously painted walls and ceilings . We also tint the plaster to make any color desired , and apply two coats of machined buffed wax to give the walls a satin smooth finish burnished with steel wool .You will never have to paint again !
No, there are not different types of plaster of Paris. However, there are different types of plaster. There is plaster of Paris, pottery plaster, Puritan pottery plaster, Cerami-Cal, and Hydrostone.
Gypsum plaster (plaster of Paris) ( CaSO4·½H2O ) A large gypsum deposit at Montmartre in Paris led gypsum plaster to be commonly known as "plaster of Paris"
A fresco was painted on plaster. A good example is the Sistine Chapel. Michelangelo would apply the plaster to the ceiling and while it was still wet place the pattern he had drawn on the plaster and trace it into the plaster. Then, he would apply the paints. Many times he would decide he didn't like what he had and break it out starting over with the picture.
put a plaster over the open cut
You get a felt thing on the place of the cast, then the plaster and it hardens over it i think.