Your Questions About Using Primer on Wood Answered

Your Questions About Using Primer on Wood Answered

Using primer on wood is a necessary process that has a number of steps that you will have to follow. When applying primer to wood you will have a number of questions along the way. We try to answer them below. Ultimately it has to be noted that adding a primer to wood when painting is a very necessary step that you have to do. We have answered them all below. Do not confuse this with masonry primer or stain blocking primer which are completely different.

Do I need to seal before applying primer on wood or when I paint bare wood?

When it comes to new/bare wood/unfinished wood it is recommended to always seal with an primer, whether it is an oil based primer or water based one. This helps the future coats of paint adhere to the surface and stops any spotty or blotchy areas from appearing. Wood knots in particular need to be sealed. For these it is recommended to use a shellac primer when applying to wood surfaces.

This stage of sealing should not be confused with use of sealer. Sealer is a substrate finish that applies a barrier between the finish and the  timber. They can also be used over a previous, incompatible finish to help make the new layer stick.

Do I need to sand wood before priming?

It is not always necessary to sand before priming your wood. However, if you are working with new wood then it is 100% recommended you do so. What you need to do is sand the surface and edges lightly to smooth them out. 

If you are working with previously painted surfaces and is flaking then sand the surface with 180 grit-sandpaper and wipe down the dust with a damp cloth.

How many Coats of primer do I need?

To completely seal and prime new timber we would recommend that you use at least two coats. The first coat is there to seal the timber and will mostly be absorbed into the wood. The second coat then rejuvenates the previous coat and gives you a smooth and complete finish.

Does primer fill in sanding scratches?

When you sand your timber you create scratches on the surface with the sandpaper. As you progressively work to finer grits these scratches get smaller and finer until they are nearly invisible to the eye. If the scratches are small enough then the primer can act as a filler for them and let them disappear. However, if the scratches are too big then filling will not be possible and will have to be done with a specialised filler or have to be sanded using the progressively finer grits.

What is the best primer for my timber?

The best way to answer this question is to get in touch with us and we will be able to help you pick the correct primer for your wood.

What do I need to do before applying my primer?

There are a few steps you need to do before you begin priming your surface. First off, be sure that the surface is blemish free. Secondly you need to be sure that it is as clean as possible. Using a vacuum and a damp cloth is a must to get the very best finish.

These are some of the questions you may have when you begin working with primer. Anything else you may need then just get in contact with us and we will answer you.