Priming and area before painting can often double your work required so it’s very important to know when priming is necessary and when this step can be skipped. We have put together a list on instances where we suggest priming prior to painting to help you in the decision process.
Painting over bare wood
Wood is extremely porous and if it is not primed first, it will absorb any paint you apply to it. This results in a grainy texture that will require you to apply more coats of paint to get a smoother finish. Furthermore, by priming bare wood surfaces first, it will seal the surface which will stop absorption and help limit unwanted wood texture. Priming bare wood surfaces prior to painting will ensure that the paint applied will last and will not start to peel or flake off shortly after painting.
Major colour changes
If you’re changing from a very dark colour to a light colour or a vibrant hue to a more muted one, we suggest using a primer first. Without priming first, you will likely have to apply more coats to achieve the desired colour as there is a chance that the old colour will bleed through. We suggest tinting your primer to a similar tone of the final colour. This should allow you to reach you desired colour with less work and without wasting paint.
Switching from an oil paint to a latex
When switching the kind of paint used on a surface priming is suggested. Priming ensures that the pain applied will adhere to the surface better. You also might want to give the area a light sand prior to applying the primer in order to make sure that there is a good surface to adhere to and smooth.