Sand
To plaster over foil covered board, you will first need to apply a bonding agent to the foil surface to help the plaster adhere. Then, apply a base coat of plaster over the foil, making sure to smooth it out evenly. Finally, add a finish coat of plaster once the base coat has dried to achieve the desired texture or finish.
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.
plaster with neat coat of cement
In olden days of yore plaster was applied over wooen lath which gave the plaster something to adhere to . Thus a much heavier coat of plaster could be applied because of the space between the lathes. the next day a second coat was applied called the skim coat because it's only purpose was to fill in the imperfections left from the first coat. fast forward to now the plaster comes in sheets much the same as sheetrock ex cept it is blue, and rightly called blueboard , after the hangers screw the bluboard to the wall and ceiling a team of plastererscome in and put a skim coat of plaster over the whol board, the joints require a heavier coat. After this coat dries in a couple of hoursor less the plasterers come back and apply a veneer thickness to the wall and dampen the plaster with a brush being waved in front of the board.Thus completing the plaster job. Now a oldtime plasterer like my brother-in-laws brother is a real plasterer and I was lucky enough to have him plaster my house when we built it, would walk off a job if they wanted him to use blueboard., as he is a old time plasterer who is an artist as he makes crown mouldings an other plaster designs on top of a coulple of inches thick.of base plaster. if you get a chance to see a real plaster job and a blueboard job you can tell the difference and both shine over sheetrock and compound job.
I use basic drywall primer over all of those.
They are the same thing. A skim means just a thin finishing coat of plaster about 3mm or so thick, just enough to cover any minor imperferctions on the wall.
The noun for render is a word for the first coat of plaster applied to a brick wall.The noun forms of the verb to render are renderer and the gerund, rendering.
The word 'render' is a noun as a word for a first coat of plaster for a masonry surface.The noun forms of the verb to render are renderer and the gerund, rendering.
No, you plaster or mud it first.
To plaster, first prepare the surface by cleaning and dampening it. Mix the plaster with water to a creamy consistency and apply it to the surface using a trowel. Smooth the plaster evenly and let it dry before applying a second coat if necessary. Sand the dried plaster to a smooth finish once it's completely dry.
Carlite plaster is a type of lightweight plaster made with expanded perlite or vermiculite aggregates. It is often used as a base coat for walls and ceilings to provide thermal insulation and fire resistance. Carlite plaster is easy to work with and helps reduce the overall weight of the structure.