SilverCornices.com Since 1946 Silvers has been linked to quality, service & style.
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silvercornices.com/
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Excerpted from the website:
- Since 1946 the Silvers Name has been synonymous with quality, service and old style original design. From generation to generation the business along with knowledge and skill has been passed down and still remains in the family today.
Additional Information
From traditional styles to modern designs. The staff at Silvers can help you select from our range of quality plaster products to enhance your home or building project. We are also able to reproduce existing ceilings and features for repair or alterations.
The term plaster can refer to plaster of Paris, lime plaster,or cement plaster. This article deals mainly with plaster of Paris.
Plaster of Paris is a type of building material based on calcium sulfate hemihydrate, nominally CaSO4·0.5H2O. It is created by heating gypsum to about 150 °C.
2 CaSO4·2H2O → 2 CaSO4·0.5H2O + 3 H2O (released as steam). A large gypsum deposit at Montmartre in Paris is the source of the name. When the dry plaster powder is mixed with water, it re-forms into gypsum. Plaster is used as a building material similar to mortar or cement. Like those materials plaster starts as a dry powder that is mixed with water to form a paste which liberates heat and then hardens. Unlike mortar and cement, plaster remains quite soft after drying, and can be easily manipulated with metal tools or even sandpaper. These characteristics make plaster suitable for a finishing, rather than a load-bearing material.
Plaster was a common building material for wall surfaces in a process known as lath and plaster, whereby a series of wooden strips are covered with a semi-dry plaster and then hardened into surface. The plaster used in most lath-and-plaster construction was mainly lime plaster. Lime plaster cure time is about a month. To stabilize the lime plaster during curing, small amounts of Plaster of Paris were mixed into the putty. Because Plaster of Paris sets quickly, "retardants" were used to slow setting time enough to allow workers to mix large working quantities of lime putty plaster. A modern form of this method uses expanded metal mesh over wood or metal structures, which allows a great freedom of design as it is adaptable to both simple and compound curves. Today this building method has been partly replaced with drywall, also composed mostly of gypsum plaster. In both these methods a primary advantage of the material is that it is resistant to a fire within a room and so can assist in reducing or eliminating structural damage or destruction provided the fire is promptly extinguished.
One of the skills used in movie and theatrical sets is that of "plasterer", and the material is often used to simulate the appearance of surfaces of wood, stone, or metal.
