![]() ![]() It was also mixed with other materials and sprayed on ceilings and walls to produce a soft, textured appearance. It was usually the white finish coat over a brown/ base coat applied to wire lath, and was typically white to gray. Some acoustical plasters (e.g., those used in the 1920s) contained asbestos. Lime is alkaline.Īlkaline-resistant Paint: A paint like an oil alkyd or masonry paint used to prime or paint plaster.Īngle Float: Used for inside corner work with conventional plasters.Īsbestos: Used in many products since the early 1900s - 1980s, due to high tensile strength, flexibility and resistance to heat, chemical and electrical conditions. Admixtures: Ingredients other than aggregate binders and water that are added to plaster, like accelerators or retarders.Īggregate: Added to conventional gypsum plasters to extend coverage, reduce shrinkage and lower cost - e.g., sand or perlite.Īlkaline: a pH greater than 7 a base, caustic. Acoustic or Acoustical Plaster: Plaster with pores in the set plaster or minute spaces bweteen the binding material, fibers and aggregates that ‘soak up’ sound. Here are some common terms used when discussing plastering:Īccelerators: used to prevent plaster from setting too slowly, to avoid dryout in hot dry weather and ensure normal strength when it does set. Luke trowels a ceiling during resurfacing Special fasterners are used to secure the ceiling to old lathīart puts the final touches on a resurfaced ceiling Jack holds the fiberglass mesh tight while Luke trowels it into the wet Durabond Luke mechanically mixes plaster at the job site GLOSSARY: Definitions of Plastering Terms Here is another site for the one’s interested in plaster. ![]()
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