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Woodwork: common problems

Resin is bleeding through my finished paintwork

Resin usually comes from knots in new wood. Before painting all knots and any bits which look a much darker colour should be treated with a Knotting solution. Specially designed Knotting bottles are available, where the brush is incorporated into the lid. if you use an ordinary paintbrush to apply the knotting remember that it dries extremely quickly( in ideal conditions less than a minute)so keep the brush in the knotting when not in use.

White Marks, Removing from Polished Surfaces .

White marks on French-polished and similar surfaces are usually the result of standing hot dishes, jugs, etc., and are caused by condensed moisture penetrating the film which the heat has softened. Such marks can sometimes be removed by rubbing the surface with a mixture of linseed oil (or sweet oil) and methylated spirit; alternatively, place several thicknesses of clean white blotting-paper over the mark and go over the paper with a warm iron. This may soften the film sufficiently to allow the moisture to be drawn out by the heat.

While either of these treatments is worth trying, it must be added that they are not likely to be successful if the marks are of long standing.

Paint runs on woodwork and doors

Sand out the run completely, dust off and touch up with undercoat before applying the finish coat.

Finish coat has not covered the undercoat very well

Apply a second coat of finish as soon as the first one is dry; paint makers often recommend two coats of finish for certain colours such as reds and yellows.