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Horsehair is the long hair growing on the manes and tails of horses. It is used for various purposes, including upholstery , brushes , the bows of musical instruments, a hard-wearing fabric called haircloth , and for horsehair plaster , a wallcovering material formerly used in the construction industry and now found only in older buildings.
Lath and plaster is a building process used to finish mainly interior dividing walls and ceilings. It consists of narrow strips of wood ( laths ) which are nailed horizontally across the wall studs or ceiling joists and then coated in plaster .
The difficulty of working upside down often results in plaster bombs splattering on the floors, walls and people below. This is why smooth ceilings, that use no retardant and sometimes even accelerant, are done before the walls. Retarded plaster can easily be scraped off a smooth plaster wall when wet.
Lime plaster is a type of plaster composed of sand, water, and lime, usually non-hydraulic hydrated lime (also known as slaked lime, high calcium lime or air lime). Ancient lime plaster often contained horse hair for reinforcement and pozzolan additives to reduce the working time.
Historically, horsehair was used in mortar [5] and straw in mudbricks. In the 1900s, asbestos fibers were used in concrete. In the 1950s, the concept of composite materials came into being and fiber-reinforced concrete was one of the topics of interest.
A plasterer is a tradesman who works with plaster, such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. The process of creating plasterwork, called plastering, has been used in building construction for centuries. A plasterer is someone who does a full 4 or 2 years apprenticeship to be ...
Consequently, plaster veneer might be an appropriate choice in the renovation of an older house with existing lath-and-plaster walls. Bare mud-and-tape drywall is generally only acceptable as a final decorating finish in utility spaces such as attics or garages. In most rooms, such walls are finished with paint or wallpaper. Plaster veneer ...
the plaster is applied in one thick coat with a wooden float, and smoothed with the same. before the plaster sets, a flat, smooth, hard stone is used to compress the plaster, then a plastic trowel used for the final polish. it is mechanically polished using stones or abrasives harder than the plaster, providing a smooth, sometimes shiny, finish.