DIY Builds
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Can you paint straight onto MDF?

It consists of a combination of sawdust and resins that make it inexpensive and easy to cut. Common uses for MDF include kitchen cabinets and furniture such as dressing tables and wardrobes. To answer the question of whether you can paint MDF, the answer is simple, yes you can paint MDF.

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How To Paint MDF

So you now know what the best paint and primer to use on MDF are. Now let's talk about how exactly to go about painting them!

Step 1: Cleaning & Sealing

One of the most important steps of any decorating project, as any professional decorator will tell you, is preparation. Firstly, if the MDF has dirt or grime on it, this must cleaned before we begin priming and painting. A universal cleaner such as Zinsser Universal Degreaser & Cleaner can be used, which is then wiped down with a cloth ensuring that no residue is left. As we have mentioned, the edge of MDF often has a much rougher edge that absorbs moisture more than the back and front of the substrate. These edges if they haven't previously been sealed must be treated so it will accept the paint in the same way as the rest of the surface. This can be done by first sanding the edges using a 120-grit sandpaper to smooth the surface of the MDF. You must ensure that you are wearing protective goggles and a mask when sanding MDF as it contains dust and glues that hold the substrate together that can be harmful to health. Once you have sanded down the edge, you can apply a number of layers of Dulux Trade Quick Dry MDF Primer to seal these edges, before the rest of the MDF is primed. This gives the corners an extra level of primer in order to prep them for painting. This is most easily done with a small paint brush. Once this primer has dried sand down the edges of the MDF once again with a 120-grit sandpaper. The next stage is to apply primer to the rest of the MDF using Dulux Trade Quick Dry MDF Primer once again. You can use a mini-roller or a brush to apply the primer. Ensure you apply a generous but even layer of primer. If you have previously painted and sealed MDF it is not necessary to prime this before painting. You can move straight to apply a first-coat of paint.

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Step 2: Sanding

After you have primed and sealed the MDF, it is time to prepare the full surface for painting. Ensuring that you are wearing protective goggles and a mask, sand down the full MDF surface with a light key sandpaper (such as 120-grit).

Step 3: Priming

Once the MDF has had a light sand, you can apply a second coat of primer as evenly as possible, creating a final base that is ready to be painted. While this seems like a long-winded process, the preparation that goes into painting is what sets apart good results and perfect results.

Step 4: Painting

Now the important part, the painting. Using a brush or mini-roller again, apply a first-coat of paint to the MDF nice and evenly to create an excellent undercoat for finishing. Leave this to dry completely as per the manufacturers instructions. The chances are you will require a second-coat of paint, which you should apply so that the MDF has a good paint film applied. It's important to note that MDF is porous, which may mean that you will require more paint than you would expect.

Step 5: Finishing

If the MDF will be taking heavy-traffic and may be prone to scuffs, it is a good idea to preserve the finish using a final sealing finish such as Sadolin Extra Durable Clearcoat. This is optional, especially if you do not want to add an extra level of sheen to the MDF, which a gloss polyurethane can leave.

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