When it comes to painting for woodwork, there is an essential difference between interior and exterior woodwork. Using the wrong paint can, in fact, have the opposite effect. So are you planning to paint exterior wood? In the tips that follow, you will find inspiration for choosing the right paint.
Painting Wood On The Outside Or Inside: The Difference
Wood paint used for the interior should be easy to maintain and preferably resistant to wear and scratches. It is important that this wood is well covered with a suitable lacquer resistant to scratches.
For exterior wood, it is exactly the opposite. The wood reacts to weather conditions. It works, shrinks, and expands. The paint for exterior wood must therefore be flexible and elastic. Do you use interior wood paint on the exterior? After a while, you may see cracks appear in the structure of the colour.
Paint For Exterior Woodwork: Choose The Right Product
As with other paints, in woodwork colour, you have the choice between water-based and solvent-based products. We walk you through the pros and cons of each kind.
This type of paint has had great success over the past 10 years. It is extremely stable and deteriorates less quickly. It retains its shine, suppleness and colour longer, which can be significant with colours such as red or dark blue (which may fade after a while).
Since these paints are water-based, you will need good weather conditions to use them. Preferably, do not apply them in direct sunlight or in a strong wind as they dry out much too quickly. Water-based paints are more delicate to use, so take the weather into account.
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The great advantage of this type of paint is its ease of use also in hot weather. It does not dry as quickly as an aqueous phase product. Result: your treatment time will be longer, and you will get a nice smooth structure.
Note also that solvent-based paint can give off a very strong odour. Most of the time, it contains white spirit and is, therefore, neither very healthy nor very pleasant. Under the effect of sun and rain, these paints deteriorate faster than water-based paint. They become duller, and their colour fades.
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Take the duct tape test.
Do you know the duct tape test? This allows you to check if the layer of oil paint you want to cover is still in good condition. How to proceed? Firmly apply a few inches of tape to the paint, and then remove it.
If the paint comes off and sticks to the adhesive tape, your support is no longer good. Remove old layers of paint by sanding them carefully. Dust thoroughly and then apply a primer.
If your old coat of paint passes the duct tape test (nothing comes off), it is safe to continue working and apply a coat. However, it is advisable to sand and dust well before starting to obtain a quality result.
Be sure to paint with the right brushes.
If you opt for the solvent-based paint, use the classic brushes made from Chinese hog bristles. For water-based paints, prefer synthetic brushes instead. Otherwise, you risk getting too many streaks in the paint.
Always paint with the grain of the wood.
Use enough paint.
The more paint you use, the more time you will have to apply it beautifully.
As you can see, choosing the right paint for exterior woodwork is not as obvious as it seems at first glance.
If you intend to do exterior painting work, carefully weigh the pros and cons of each option and consider the conditions under which you will be painting. Get advice on what type of paint to choose as well.