Painting exterior woodwork.
You will need:
Scraper and/or shave hook (for the hard to reach places)
Brushes – 25 mm, 50 mm, angled paintbrush
You need to prepare wood that has been previously painted.
If it has been painted but is still in good condition just wash with a strong solution of sugar soap in warm water. This will take off enough of the glaze so that the new paint will adhere.
Remove any scuff marks with a cleaning material such as Handy Andy, for persistent marks rub lightly with a cleaning paste on steel wool.
If the paint work is just scratched or marked, remove all flakes with a scraper using a shave hook for the hard to reach bits, you will find a shave hook especially useful for frames and mouldings.
Paint primer onto bare wood and when it is dry follow with layers of undercoat to build up the groove or scratch with the surrounding paint. When the undercoat is dry, smooth lightly with a fine grade sandpaper.
If the paintwork is tatty and just too damaged it can be removed with a hot-air gun, blowtorch or a chemical paint stripper; make sure you follow the instructions when using these tools and adhere to safety precautions. Do not use a blowtorch near glass as it will cause the glass to crack. As soon as the paint bubbles you can start scraping.
Build-up or fill any cracks, gaps, scored marks with an exterior grade wood filler. When it is dry, use a fine grade sandpaper to smooth. Remove dust with an old paintbrush.
Use an undercoat on primed, bare wood and to cover old paint work of a different colour. Topcoat alone will not disguise an old coat of paint.
Once the undercoat is dry, lightly sand with fine sandpaper and remove the dust using an old paintbrush or lint-free cloth.
Finishing off with a topcoat:
Apply two coats of your topcoat to exterior wood surfaces using a 25 mm paintbrush for window frames and an angled paintbrush for "cutting in" where surfaces meet and a 50 mm paintbrush for larger surfaces that you need to cover.