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Preparation for bare wood
Always ensure the surface to be painted is dry and free from grease. Rub down the surface with fine sand paper. Prepare knots with appropriate solution to prevent resin from bleeding through the painted surface. Any filling can be done at this stage if it is required. Standard powder proprietary filler is ok, but for best results (where vibration may cause the gaps to open) acrylic emulsion type filler should be used. Always use an appropriate and good quality primer for the individual type of wood, I recommend Dulux or Crown paints. Some knots may need spotting (given a double coat) and when dry give one or two coats of an undercoat. Always sand down very lightly between coats with one exception, an eggshell finish. Eggshell finishes in preparation for specialist paint effects must have two coats with no abrading through the first layer or the second. It is critical to have a uniform surface to the work piece otherwise patching may occur. Just wipe down between these coats with a clean cloth and a little white spirit.
Notes on paint type
Water based copolymer eggshell can be used and is convenient on large areas using a fine sponge roller but the traditional oil based paint will give a finer finish and enhance the work piece. For preparation of painted wood ensure there is no loose paint, dirt or grease on the surface. Rub down to a fine finish, prime only bare wood and continue as before with undercoat and eggshell.
Walls and ceilings All plaster work and surfaces must be dry and sound. Loose powdery surfaces can be sealed with the appropriate solution and all cracks and holes can be filled. Cross lining with a 1200 grade paper will give a better finish in most cases but if the surface is in particularly good condition, then continue without it. Painting over old wall paper is not good practise and will lead inevitably to a poor job. Therefore, you should prime bare plaster and lined walls with diluted emulsion or proprietary sealants. Eggshell is the most common base finish required for specialist paint effects and as before with wood work the last two coats of paintwork are all important to a good finish. Do not rub down between these two coats of paint, any scratches or badly painted areas will show through the final finish. Some backgrounds need colour as part of the final paint effect and this can be achieved with the eggshell base coat. So understand which design and colour scheme you want before preparation is complete. If you need any further, or more in depth information, please don’t hesitate to contact us. info@austin-jones.co.uk
Austin-Jones Proprietor Ian Jones
Any information is given in good faith and is a recommendation. Austin-Jones will not accept any responsibility. These recommendations are not exhaustive and will not always be the most effective way for work to be carried out.
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