Category: SURFACE FINISHING MATERIALS
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MISCELLANEOUS SURFACE FINISHES
Apart from the surface finishing materials, the following methods are also used in specific cases: Wallpapering Wallpapers of a certain design are used for developing the aesthetic values of interior walls and ceilings. They may be exclusively of paper or combined with other materials. The papers used for papering are: pulp paper, satin paper or…
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WHITE AND COLOUR WASHING
White washing is the oldest method of surface finishing in use. The white-washing material is prepared from pure fat lime, which may be slaked at site. Slaking is carried out in a tub until the mixture shows a creamy consistency. The slaked lime is allowed to rest for 24–48 hours. The mixture is then strained…
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DISTEMPERS
Function of Distempers Distempers are water paints consisting of whitening (i.e., powdered chalk), glue or casein as a binder and suitable colouring pigments. Distempers are used on plastered, cement concrete and on various wallboard surfaces. They are cheap, durable and are pleasing in appearance. They also safeguard the surfaces from adverse weather conditions. Constituents of…
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VARNISHES
Varnish is a clear, pale solution of a resinous substance dissolved in either oil, turpentine or alcohol. The resinous substances are amber, common resin, copal, lac or shellac. The solution spread on the surface after drying forms a hard, transparent and glossy film on the varnished surface. 12.3.1 Functions of Varnishes In general, varnish is…
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Characteristics of a Good Paint
An ideal paint should possess the following qualities: 12.2.4 Types of Paints Various types of paints are discussed below: 1. Oil Paint The various constituents of an oil paint are discussed in Section 12.2.4. These paints are self-priming and in general do not need any special primer or undercoat. When it is used for general…
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PAINTS
Paint is mainly composed of two ingredients, viz., a base which is a solid material and a liquid called a vehicle. The vehicle carries the solid matter, distributes it evenly and enables the solid matter to adhere to the surface. 12.2.1 Functions of Paints Irrespective of the type of paint, in general, the functions of…
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INTRODUCTION
Apart from protecting various building units from the weathering action of the atmosphere, the main objective of surface finishing materials is to provide a decorative finish to obtain a clean, colourful and pleasing surface. Surface finishing materials are paints, varnishes, distempers and white/colour washing. The surfaces may be plastered wall surfaces, ceilings, wooden surfaces, metallic…