Why I love/hate bristol plasterer - 0 views

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  #1 Hiram Wall on 07 Jun 12

   

  For art and external moldings or murals in architecture, it provides a great surface to paint on, although the paint often needs to be renewed periodically due to evaporation of oils. Plaster is also used by investigators to lift molds of footprints or tire imprints from the ground. Dentists use it for dentures, and generally for molds for other dental work as well. Doctors use it to set fractures in casts.
  
  Today, it is most generally used in building to give a smooth finish, to prevent leakages and to prevent damage from fire, depending on the thickness of the layer. It is more absorbent and less liable to allow condensation to occur when pure or fat lime is used, additionally it is more economical and safer. It is not very surprising that skilled plasterers always have a job available somewhere, making the Plastering Business a niche market that provides a regular and steady inflow of business and income.
  
  After around 24 hours the render has dried but before the final plaster coat is applied a trowel is used to scrape loose sand grains from the surface which would otherwise spoil the plaster finish.
  
  The finishing or setting plaster coat which is about 3/16 inches thick is worked with a hand trowel on the surface of the rendering, which must first be well wetted. The plaster is applied in two coats to slow the drying speed of the second coat and after drying must still be wetted and worked for a time to produce a thin film of watery plaster which has the effect of "Polishing" the finished surface.
  
  Plastering is definitely an very old art that is certainly still in use today. Plaster is a natural product, hydrated gypsum, with the chemical formula of CaSO4.2H2O. This dries into a fine white powder which can be mixed with additional water and shaped. It has traditionally been used for interior walls, and to create ornate trims. It is the foundation for the painting technique called fresco where images are painted while the plaster is still wet. The plaster was often stabilized by the addition of materials such as animal hair, or a base such as fabric. Exterior walls are often plastered with powdered limestone (stucco).
  
  A lot of modern interior walls are made from a pre-formed plaster board also called drywall or sheet rock. Compared to traditional techniques these are easily installed by nailing to studs or joists and having the joints and nailheads hidden by plastered tape. Alternatively the complete surface can be covered using a thin coat of plaster, called veneering.
  
  Either way, plastering remains to be a task which can be difficult for the average do-it-yourself-er. It is a specialized skill and for the best work, contractors and homeowners hire a professional to achieve acceptable results. Not only does it require experience to bring about a smooth surface, but a plasterer is in a constant race with the speed of the chemical reaction as the plaster dries. To accomplish that perfect finish it is a race against time because once the plaster has started to set there's not much which the average guy can do about it.
  
  However, for smaller jobs, such as to repair wall or ceiling cracks, or small holes, home repairs can be accomplished fairly easily. Blown plaster, where the plaster has separated from the backing, is harder, but may be tackled by a serious handyman.
  
  With a full plastered wall, initial coats of plaster are applied using a skimming float, a huge flat-surfaced tool which is held at a slight angle to drag the plaster across a wall. Subsequent coats are added with a technique called float and set. This simply means that the next coat is applied and floated (smoothed), and allowed to set. more info

   

  <div class="cArrow"> </div><div class="cContentInner">For art and external moldings or murals in architecture, it provides a great surface to paint on, although the paint often needs to be renewed periodically due to evaporation of oils. Plaster is also used by investigators to lift molds of footprints or tire imprints from the ground. Dentists use it for dentures, and generally for molds for other dental work as well. Doctors use it to set fractures in casts.<br /><br />Today, it is most generally used in building to give a smooth finish, to prevent leakages and to prevent damage from fire, depending on the thickness of the layer. It is more absorbent and less liable to allow condensation to occur when pure or fat lime is used, additionally it is more economical and safer. It is not very surprising that skilled plasterers always have a job available somewhere, making the Plastering Business a niche market that provides a regular and steady inflow of business and income.<br /> <br />After around 24 hours the render has dried but before the final plaster coat is applied a trowel is used to scrape loose sand grains from the surface which would otherwise spoil the plaster finish.<br /><br />The finishing or setting plaster coat which is about 3/16 inches thick is worked with a hand trowel on the surface of the rendering, which must first be well wetted. The plaster is applied in two coats to slow the drying speed of the second coat and after drying must still be wetted and worked for a time to produce a thin film of watery plaster which has the effect of "Polishing" the finished surface.<br /> <br />Plastering is definitely an very old art that is certainly still in use today. Plaster is a natural product, hydrated gypsum, with the chemical formula of CaSO4.2H2O. This dries into a fine white powder which can be mixed with additional water and shaped. It has traditionally been used for interior walls, and to create ornate trims. It is the foundation for the painting technique called fresco where images are painted while the plaster is still wet. The plaster was often stabilized by the addition of materials such as animal hair, or a base such as fabric. Exterior walls are often plastered with powdered limestone (stucco).<br /><br />A lot of modern interior walls are made from a pre-formed plaster board also called drywall or sheet rock. Compared to traditional techniques these are easily installed by nailing to studs or joists and having the joints and nailheads hidden by plastered tape. Alternatively the complete surface can be covered using a thin coat of plaster, called veneering.<br /><br />Either way, plastering remains to be a task which can be difficult for the average do-it-yourself-er. It is a specialized skill and for the best work, contractors and homeowners hire a professional to achieve acceptable results. Not only does it require experience to bring about a smooth surface, but a plasterer is in a constant race with the speed of the chemical reaction as the plaster dries. To accomplish that perfect finish it is a race against time because once the plaster has started to set there's not much which the average guy can do about it.<br /><br />However, for smaller jobs, such as to repair wall or ceiling cracks, or small holes, home repairs can be accomplished fairly easily. Blown plaster, where the plaster has separated from the backing, is harder, but may be tackled by a serious handyman.<br /><br />With a full plastered wall, initial coats of plaster are applied using a skimming float, a huge flat-surfaced tool which is held at a slight angle to drag the plaster across a wall. Subsequent coats are added with a technique called float and set. This simply means that the next coat is applied and floated (smoothed), and allowed to set. <a href="http://www.plasterersbristol.com/about-bristol-plasterers-ashton-southville-plastering" rel="nofollow">more info</a></div>

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