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What Kind of Plaster Is Used on Ceilings?

In general, gypsum plaster is the material plasterers use today. Different types of aggregate may be specified by the architect such as clean river sand, perlite, pumice, or vermiculite; however, if historic finishes and textures are being replicated, sand should be used as the base-coat aggregate.

What Kind of Plaster Is Used on Ceilings?

There are a variety of plaster types that can be used on ceilings, each with its own advantages and disadvantages. One of the most common types of plaster is gypsum plaster, which is made from calcium sulfate.

Gypsum plaster is easy to work with and provides a smooth, even finish. However, it is not as durable as other types of plaster and can be damaged by water.

Another popular type of plaster is lime plaster. Lime plaster is made from calcium oxide and is very strong and durable. It is also resistant to fire and mold. However, lime plaster can be difficult to work with and is not as smooth as gypsum plaster.

Portland cement is another type of plaster that is commonly used. Portland cement is made from a mixture of limestone and clay. It is very strong and durable, but it can be difficult to work with and is not as smooth as gypsum plaster.

Stucco is another type of plaster that is made from Portland cement, sand, and water. Stucco is very strong and durable, but it can be difficult to work with and is not as smooth as gypsum plaster. Perlite plaster is another type of plaster that is made from volcanic ash.

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