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The 18th century gave rise to renewed interest in innovative external plasters. Oil mastics introduced in the UK in this period included a "Composition or stone paste" patented in 1765 by David Wark. This was a lime-based mix and included "oyls of tar, turpentine and linseed" besides many other ingredients.
In America, goats' hair is frequently used, though it is not so strong as ox-hair. The quantity used in good work is one pound of hair to two or three cubic feet of coarse stuff (in the UK up to 12 kg per metric cube). Hair reinforcement in lime plaster is common, and many types of hair and other organic fibres can be found in historic plasters ...
Plasterer, a tradesperson who works with plaster, such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. [ 10 ] Plumber , a tradesperson who specializes in installing and maintaining systems used for plumbing (drain systems), heating , drainage , fire fighting , potable (drinking) water or ...
BPB Ltd (formerly BPB plc) (British Plaster Board) was a British building materials business. It once was a constituent of the FTSE 100 Index. [citation needed] In 2005, the company was purchased by Saint-Gobain of France.
The applier drags the board upward over the wall, forcing the plaster into the gaps between the lath and leaving a layer on the front the depth of the temporary guides, typically about 1 ⁄ 4 inch (6.4 mm). A helper feeds new plaster onto the board, as the plaster is applied in quantity.
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Plaster was first used as a building material and for decoration in the Middle East at least 7,000 years ago. In Egypt, gypsum was burned in open fires, crushed into powder, and mixed with water to create plaster, used as a mortar between the blocks of pyramids and to provide a smooth wall facing.
Roughcast or pebbledash is a coarse plaster surface used on outside walls that consists of lime and sometimes cement mixed with sand, small gravel and often pebbles or shells. [1] The materials are mixed into a slurry and are then thrown at the working surface with a trowel or scoop.