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Painting Guide
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Interior Surface Painting Process :
It is important to understand the painting process. One it may help you perform the activity if you are avid admirer of DIY concepts, or even if you hire a painter, a better understanding of the process will give you more control on the procedure and help you execute your painting plan effectively.
Preparing the room :
  • Remove all the movables from the room. What cannot be removed should be placed in the centre and covered with plastic drop cloth or canvas.
    Turn off the power and remove light fixtures, switch boards and other fixtures on the wall. Those which cannot be removed should be covered with plastic and masking tape. Wrap any exposed wires by electrical tape to prevent them from being coated in paint.
    All curtains and curtain rods should also be removed. Wall hangings and paintings should be removed and nails should be pulled out and disposed off safely.
  • Ceiling fans and trim pieces of ceiling fixtures as well should be removed, while the fronts of air conditioners and coolers must be suitably covered with plastic and masking tape.
    Door hardware should be carefully removed and the components of the fixture should be kept in an organized manner to help the reassembly process. Also for doors and windows or ceiling trims that we do not want to remove, should be covered with the help of masking tape or painter's tape.
    Floors should be suitably covered with canvas to prevent splatters from paint damaging the floor.
    Prepare a trash can lined with plastic bag to throw the wastes.
Surface Preparation :
Surface preparation is important because it directly affects the surface finish of the paint. It is not only critical in getting good results; it actually helps save time and makes the painting exercise economical. It is said that the most expensive paint, the finest brush and best painting technique cannot compensate for a poor surface preparation.

During the surface preparation exercise it is recommended that you wear safety goggles and a mask to avoid being exposed to unnecessary dust. Some items that you would require are Paint Scrapper, Putty knife, Sand paper, Sanding Block, Cloth, little water and a stiff brush.

Use a paint scrapper, a putty knife or a sand paper to remove loose particles or flakes and ensure that the surface is free from dust, dirt, grease etc. For lime wash coated walls it is suggested that you scrape it off using a Paint Scrapper or even sand paper. For oil-base painted walls you can remove the gloss by sanding as well. Ensure that all flaking paint is also removed and what paint is left adheres tightly to the wall.
Be careful on wood siding to avoid gouging the wood with a scrapper.
Patching cracks - Dig out the cracks with the help of a screw driver to remove all loose material and fill them with plaster or putty mixture. When dry, smooth the surface with the help of a 220 grade sanding paper.
Patching Holes – Dig out the holes a little to remove loose material and patch up all the holes using plaster, putty or lightweight spackle.
Remove patches, mildews - If painting over a previous coat of paint, one must remove any mildew with a mild solution of bleach and water in a one-to-four ratio or with the help of a mildew cleaner.
After all scrapping and patching it is advisable to sand the entire surface. An 80 grit sandpaper would be ideal. Take care to start sanding only when all the patching has dried.
To remove dirt or grease wash walls with water. Start the painting procedure only when the walls are dry.

First Primer Coat :
Primer coat is essential, especially when the walls to be painted are stained, porous, has water damage or mildew; or when we are painting a light colour over a dark colour or vice versa. Primers help provide a smooth surface, making the surface less absorbent, thus increasing the spreading capacity of the paint. Using primer on the kitchen, bathroom and exterior walls is especially important to aid in the prevention of mildew.

Primer helps give uniform colour and texture to the finished paint, and provide better adhesion to the top coats. The type of primer used is also dependent on the kind of surface to be painted, i.e. different primers exist for interior walls, exterior walls, wood, metals etc.

Apply the first coat and allow it to dry before application of putty coat (if required) or paint coat.

Putty Coat :
Putties are generally used in the case of fresh painting or walls that require total overhauling just like fresh walls, they may not be used for repainting or touch up exercises.

Wall putty should be applied to walls after first primer coat has dried. It will fill in minor cracks and surface imperfections, and provide a protective sub-layer for the expensive paint. As per the requirement 1-2 coats of putty can be applied, but do allow the previous coat to dry before applying subsequent coat.

Second Primer Coat :
  • Generally repainting services require a single coat of primer, but for fresh surfaces or the surfaces that need considerable levelling and removal of undulations, two primer coats are required. Care must be taken that the second primer coat be applied only after the putty coat(s) has dried completely.
Finish Coat :
  • Generally two coats of finish coat are required to get the desired finish and colour. It is important that each coat must be completely dry before the application of next one. Please refer to the instructions with the paint purchased for finding out drying time and special instructions if any.
 
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