Gypsum plaster (Plaster of Paris)

 

Gypsum building plasters are used extensively abroad for general building operations and the manufacture of pre-formed gypsum building products like tiles, blocks, plaster board etc, which have the specific advantage of lightness and high fire resistance. 

Now as there is boom in the real estate in India, the builders and contractors wants time saving in construction, therefore they choose gypsum plaster due to its superior finish and time saving aspect. Now a days, the construction sector has observe a number of new tendency, technology advancements and improvement across application, all meant at making construction faster and delivering higher performance.  Gypsum surface plaster is one type that has drawn the attention on the construction sector and is getting higher popularity these days.

              Gypsum is a chalk like material light in weight. It is crystalline combination of calcium sulphate and water. It is available as natural gypsum, which is mined all over the world, and as synthetic by product of major industries such as fossil-fuelled power stations. Gypsum products such as molding, design piece around fan and corner design pieces and many more have been used for past time in the construction field and are the material of choice because of gypsum’s unique properties. Gypsum plaster has very good insulation properties both thermal and acoustic. Gypsum plaster has properties like fire protection, moisture resistance, impact resistance and vapor control.

               In general case after the construction of wall either with bricks or with blocks, the wall internal surface is finished with cement sand plaster and white washed or painted as the case may be but this surface remain rough. For getting smooth surface Plaster of Paris i.e. POP is applied on the plaster surface before painting or distempering the wall. In this way two stage process involves which takes lot of time and labor, this form of internal finishing being slowly replaced by a direct single coat application of gypsum plaster. Therefore gypsum plaster is in fact a replacement of two different processes i.e. cement sand plastering & POP pruning.

Application of Gypsum Plaster

       The materials used in the two stage finish i.e. plaster and POP are cement, sand, water and POP/ putty, where as in gypsum plaster, gypsum and water is required for plastering. Gypsum is mixed with water and applied on the wall within level strips and finished to a smooth surface with steel trowels/ steel float and ensures line and level leaving no undulation in the surface completely made good. The finished surface should be smooth, true to plane, slopes or curves. After drying the surface should be sand papered to give smooth surface. In this way there is saving in time for curing cement sand plaster and time for leveling coat of POP. Cement should not be mixed with Gypsum plaster.

Advantages of Gypsum Plasters

There are some advantages of gypsum plaster over the cement sand plaster & POP finish as detailed below.

  • Gypsum plaster is directly applied on brick, block or RCC, no separate finishing product required.
  • It requires no curing, therefore ready to paint.
  • Gypsum plaster saves time during construction and ensures timely possession of homes/ building.
  • Gypsum plaster expands slightly on setting and is not, therefore likely to cause cracking of surface.
  • On drying out it forms a sufficient dense surface to resist normal knocks.
  • Gypsum plaster is comparatively easy to spread and level.
  • Gypsum plasters have no appreciable chemical action on paint.
  • Gypsum plaster spread and finished to a minimum thickness increasing carpet area.
  • Gypsum plaster is perfectly lined, leveled, sharp corner and smooth surface.
  • Saving on electricity used for air conditioning as gypsum has very low thermal conductivity.
  • It is more durable and green material.
  • Gypsum plaster light in weight, therefore reduces the load on structure.
  • More cleanliness on site because it is bag packed product and no curing is required.
    • Disadvantages of Gypsum Plaster

      • Gypsum plaster is not suitable for exterior finish, as it can not be used in damp situations.
      • Gypsum plaster is more expensive than cement sand plaster but cost disadvantages should be weighed against the advantages and the fact that the labor cost is appreciably greater than that of materials in plastering.
      • Cement plaster add structurally strength to the wall but not in case of Gypsum plaster.
       
      2  Comment(s)
      Anonymous
      By Anonymous - On 12/11/2012 8:28:27 PM
      i need to learn gypsum design & how to do
       
      Anonymous
      By Anonymous - On 2/3/2011 7:09:53 PM
      very helpful web page, how many days are required to dry the internal newly plaster suface before apply POP?
      More Articles on GharExpert.com

      What type of finishing is recommended for POP?

      What are the characteristics of POP?

      What is the recommended thickness of POP on wall?
       
      corner corner
      Feedback
      Was this article helpful? Let us know how can
      we improve it. We welcome both negative and
      positive comments.
      Your name   :Anonymous
      corner corner
       
       
      Discuss in forums
      Do you need more information? Discuss
      with other community members in the
      Forums area of the site. Enter details below!
      Login or register yourself on GharExpert to
      click here
      corner corner
       
      ceiling designs of plaster of paris
      ceiling designs of plaster of paris







      ceiling designs of plaster of paris
      ceiling designs of plaster of paris
      Alfa Plaster/Stone Plaster
      Alfa Plaster/Stone Plaster
      Plaster of Paris
      Plaster of Paris
      Plaster of Paris
      Plaster of Paris
      Internal Plaster
      Internal Plaster
      Alfa Plaster yellow Colour
      Alfa Plaster yellow Colour
      Crack in plaster
      Crack in plaster
      Patch in plaster
      Patch in plaster
      Final plaster
      Final plaster
      Crack in Plaster
      Crack in Plaster
      Plaster Cut
      Plaster Cut
      Newly Plastered Surface
      Newly Plastered Surface
      Plaster Scraped
      Plaster Scraped
      Plaster Cut
      Plaster Cut
      Newly Plastered Surface
      Newly Plastered Surface
      gypsum ceiling
      gypsum ceiling
      cornech gypsum
      cornech gypsum
      Colored POP Gypsum Ceiling Design
      Colored POP Gypsum Ceiling Design
      Gypsum ceiling design with concealed lighting
      Gypsum ceiling design with concealed lig...
      Simple gypsum ceiling medallion
      Simple gypsum ceiling medallion
      celling
      celling
      Girl
      Girl's Paris Theme
      ceiling design
      ceiling design
      Click on the image to enlargeClick on the image to Enlarge
      Click here to view more pictures
      Related Articles
      What type of finishing is recommended for POP?
      The plaster should be finished to a true and plumb surface.The plaster should be finished to a proper degree of smooth..
      What are the characteristics of POP?
      Plaster of Paris is easy to spread and level.It is high fire resistant
      More Articles
      Read View all
      Hot Articles
      Protect
      Protect your home from Dampness
      Dampness causes most of the damage to the contents of the building. It often leads to the growth of molds and bacteria..
      Read Read more
      Ganesh
      Ganesh Chaturthi: Ganesh Decoration
      Ideas to decorate Ganpati and Ganesh Chaturthi decorations with the help of pictures and tips.
      Read Read more
      Kitchen
      Kitchen Furniture
      As kitchen is the heart of your home, do you think is it organized? Is it functional and easy? Just try to put the fur..
      Read Read more
      Building
      Building New Home V/S Buying Builder Flat
      Buying a builder’s flat may be costlier for you rather than building a new home. But if you plan to make your own, you..
      Read Read more
      Roof
      Roof Garden
      A roof garden is a garden on the top of a building. Roof gardens are becoming popular in urban areas because of limite..
      Read Read more
      Checklist
      Checklist for Painting Work
      Before you start paint work, make sure that the surface is clean of dust, grease and other foreign matter. Decide on s..
      Read Read more
      THE
      THE DISADVANTAGE OF IMPROPER VASTU
      There is no reason to tip the balance if your fortunes, peace of mind, health and your business are doing fine and are
      Read Read more
      Bedroom
      Bedroom Pictures
      GharExpert have updated collection of awesome bedroom pictures. Users also take interest in uploading pictures in pict..
      Read Read more
      More featured articles
      Tags
      Aggregate Bathroom Board Brick Building Ceiling Cement Color Concrete Construction Dampness Dining Door Finishing Flooring Furniture Glass Home Interior Interior decoration Kitchen Kota Light Marble Paint Plastic Plumbing Pop Sand Security Steel Study Termite Tile Vastu Window
      View all tags>>
      Copyright 2007- GharExpert.com All rights reserved.  

       
       |  Advertize with us  |  About us  |  Contact us  |  RSS  |  Blog  |  Terms of service  |  Style made simple  |  Decorating slide show  |  Tips  |  Give your feedback  |