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Simple decorative painting techniques
Sponging, colourwashing and ragging on are simple but stunningly effective decorative techniques that can be used to create a finish of hazy, broken colour on walls. They use a mix of dilute emulsion applied over a base coat of matt emulsion that has been allowed to dry. Dilute emulsion has a short drying time which can cause problems, so make sure that the room you plan to decorate is not too hot or dry. It's a good idea to experiment on a piece of card patch before you start.
Mixing your colours Matt emulsion is mixed with warm water to make the colours for these effects. For colourwashing dilute the colour from 1:4 to 1:10. For sponging, it you can go to as much as 1:30. For ragging on use from 1:5 for a bold colour to 1:25 for a softer colour.
Mixing paint for the effects Pour a measured amount of emulsion into a mixing jar and ensure you add the right amount of warm water.
Secure the lid, cover with an old towel (just in case) and shake well.
Sponging Sponging is the fastest way to add interest to a dull wall or hide imperfections on its surface. If you make a mistake simply sponge on some of the base colour to cover it.
You will need a natural sea sponge, an old plate or paint tray, a cloth and disposable gloves. Pour a little of the colour mix onto the plate/paint tray. Dip the sponge into it. Test the colour on a piece of paper and experiment to achieve the desired effect before you start to do the whole wall.
Gently pat the sponge on the wall constantly changing the angle and position of your hand and the sponge so you get an even but random build-up of colour. Step back from time to time to have a look.
For a more dense effect, go over the wall several times, gradually building up the colour. If using a second and third colour, add the next one immediately. Remember to wash and dry the sponge between colours.
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