ᐅ Which types of paint are suitable for repainting Kallax doors?

Hello everyone,

I am planning to repaint the doors of my IKEA Kallax shelving unit and am looking for recommendations on the best types of paint for this. My doors have an MDF coating, and I want to achieve a durable, even finish that is both scratch-resistant and fairly moisture-resistant.

It is important to me that I don’t have to use expensive professional-grade paint, but also avoid cheap products that peel quickly. I would like to know whether acrylic paints from hardware stores are sufficient or if it is better to use PU (polyurethane) or 2K (two-component) paints. What surface preparation is necessary in this context? Are there specific brands or types of products known for good adhesion to MDF-coated surfaces and long-lasting results?

I would appreciate hearing about your experiences and any tips you might have on tools or the painting process.

Thanks in advance!

The best options for Kallax doors are 2K acrylic or PU hard coatings. These are durable and adhere well to MDF. It is recommended to lightly sand (220 grit) and clean the surface beforehand. Acrylic paints are also possible but are less robust.

Repainting Kallax doors, which are usually made from an MDF board with a melamine or plastic surface, requires careful preparation and the choice of a suitable paint, as the surface is very smooth and has low absorbency.

First, I recommend lightly sanding the door with a fine sanding pad or sandpaper (grit 320-400) to improve adhesion without completely removing the surface coating. Then, clean thoroughly with a lint-free cloth and some alcohol to remove dust and grease.

For the paint, I suggest a high-quality 2K PU paint (polyurethane), as it offers excellent abrasion resistance, scratch resistance, and moisture resistance. PU paints cure to form a dense, stable layer that maintains its appearance even after frequent use. Acrylic paints are easier to apply and more environmentally friendly, but usually do not achieve the same surface hardness.

It is also important to use an appropriate adhesion promoter or primer before painting, specifically designed for non-absorbent surfaces. Some manufacturers offer so-called universal primers that adhere well to melamine or plastic. I would be interested to know if you have already tried sanding or if the doors are still brand new?

For application, I recommend a high-quality brush or foam roller to achieve an even finish. Applying several thin coats with sanding in between is better than one thick layer.

Summary:
- Light sanding (grit 320-400)
- Clean with alcohol
- Use adhesion promoter/universal primer
- 2K PU paint as first choice; acrylic paints as alternative
- Apply multiple thin coats

If you are not confident with DIY, a spray device like a Kura sprayer or a professional painter can also be a good option.

Hello Gipiga,

I’m adding a brief structured guide to the previous information so you know exactly how to proceed:

1. Preparation:
- Remove the doors and lay them on a flat surface.
- Lightly sand with grit 320 or finer (this is enough to “roughen” the surface and help the paint adhere).
- Completely remove dust (vacuum and wipe with a damp microfiber cloth).

2. Primer:
- If the Kallax doors are melamine-coated, I recommend using a bonding primer specifically for such surfaces, for example a PU primer or bonding primer from a specialist store.
- This ensures durable adhesion and prevents later peeling.

3. Paint application:
- For a durable result, 2K PU paints are especially suitable. They require more effort and investment, but provide high resistance to scratches and moisture.
- If you prefer a paint that is easier to apply, you can use a high-quality acrylic paint, but keep in mind the surface will be less resistant.
- Apply several thin layers, allowing each to dry thoroughly and lightly sanding between coats with very fine sandpaper, about grit 400-600.

4. Finishing:
- After the last coat, a curing time of at least 48 to 72 hours is recommended.
- Optionally, after curing, you can treat the surface with a very fine polish or wax to make it smoother and add extra protection.

Common mistakes are applying coats that are too thick, insufficient preparation, and skipping the intermediate sanding, which results in a rough or uneven surface.

Tool tip: Small foam rollers are ideal for painting as they produce minimal bubbles. Brush marks are usually visible on high-gloss paints.

If you have any questions, just ask!

Palenar schrieb:
Regarding the paint, I recommend a high-quality 2K PUR lacquer (polyurethane) because it offers excellent abrasion resistance, scratch resistance, and moisture resistance.

I can only agree with that, but I also wanted to add that working with 2K paints can be intimidating for some at first. I had doubts and was unsure if I could handle it myself in the beginning.

It’s important to carefully follow the mixing instructions and pay close attention to the working time. I once had a case where the lacquer sat too long before application and then clumped. That’s a bit frustrating, but if you proceed carefully, you’ll get a really great result.

Also, I can’t stress enough the importance of sanding and cleaning between coats, even if it’s annoying. This step makes all the difference between proper adhesion of the paint and it starting to peel off later.

If you prefer a less demanding option, I’d suggest considering high-quality acrylic paints from brands like Caparol or Alpina. These can also be applied with relatively little effort. The finish isn’t quite as durable, but it’s absolutely sufficient for shelving doors in a living room.

And don’t get discouraged—it’s fun to see the shelf transform step by step! 🙂