softwareng

Author: Ibrahim

  • New iron work and steel work Painting

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    Ibrahim
    in

    The iron or steel surface to be painted should be free from rust, grease, dirt, etc. Suitable tools like wire brushes and scrapers are used to remove all loose scales, marks etc. from the surface. Caustic soda or lime water is used to remove grease. The cleaned surface is provided with a film of phosphoric…

  • Old woodwork Repainting

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    Ibrahim
    in

    If the paint on old woodwork has cracked or blistered, it should be removed. If the surface has become smooth, it should be cleaned by rubbing with sandpaper or a fine pumice stone. Old paint can also be removed by applying one of the following three paint solvents: A solution containing 200 grams of caustic…

  • Paint woodWork

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    Ibrahim
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    Typically, new woodwork requires four coats of paint. The painting process is as follows: The woodwork surface is prepared to get the paint to work satisfactorily. It is important that the woodwork is sufficiently seasoned and has no more than 15% moisture content at the time of painting. The surface of the woodwork is thoroughly…

  • Good paint Characteristics 

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    Ibrahim
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    A good paint should have high spreading power and be durable, hard and wear resistant when dry. It should work smoothly and freely and should not crack, fade or change color. The surface should dry in 9 hours and harden enough to take another coat in 24 hours. We should be able to spread it…

  • Paint Uses

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    Ibrahim
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    It protects the surface from atmospheric weathering and the action of other liquids, fumes and gases.It prevents decay and corrosion in metal.It is used to give a good shape to the surface.It provides a smooth surface.

  • Paint Types

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    Ibrahim
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    Enamel Paints: These paints are available in several shades. They consist mainly of white lead or zinc white, resinous matter and petroleum spirit. Their formation into a hard, permanent, decay-resistant enamel-like surface immediately after use protects it from being affected by acids, alkalis, fumes and gases, hot and cold water, etc. They can be used…

  • Intro to Painting

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    Ibrahim
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    Paints are coatings of fluid materials which are applied as a final finish to surfaces like walls, ceiling, wood and metal works. Painting is done to protect the surface from the effects of weathering, to prevent wood from decay and metal from corrosion, to provide a decorative finish and to obtain a clean, hygienic and…

  • What is Mud plastering

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    Ibrahim
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    It is the cheapest type of plaster, commonly used in the construction of village houses, temporary sheds and structures of temporary importance. Apart from being cheap it provides insulation against heat and keeps the house cool for comfortable living. Clay plastering (in two coats) is then done as follows: Mud plaster, consisting of well-ground clay,…

  • plastering using cement

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    Ibrahim
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    Cement plastering is an ideal plaster for exterior rendering. It is particularly suitable for damp conditions such as bathrooms, cisterns, water tanks, floors, copings, etc. where non-absorbent surfaces are desired. Cement plaster is usually applied in one coat. However, in some cases when the thickness of the plaster is more than 15 mm or the…

  • Plaster Coats Application

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    Ibrahim
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    First coat (or rough course of plaster or rendering coat): It is usual for the average thickness of the first coat of plaster to be 12 mm on brick or ashlar masonry and 20 mm on rubble masonry, with a higher thickness on rubble masonry. due to the roughness of its surface and the need…