ᐅ My KALLAX was repainted after fire damage – will the paint hold up?

Hello everyone, I have a somewhat unusual question: My KALLAX shelf from IKEA was recently heavily soot-stained and damaged due to a nearby fire. I thoroughly cleaned the shelf and then repainted it to cover the visual damage. My question is: Will the paint adhere well to a surface that was previously heavily exposed and heat-damaged? Does anyone have experience with whether a new coating on the KALLAX will last permanently despite fire damage, or if it will peel off soon? I used a water-based wood paint that should be suitable, but I’m unsure because of the heat exposure and possibly remaining residues. Thanks in advance for your feedback!

Mufar70 schrieb:
My question is: Will the paint hold on such a heavily stressed surface that was previously exposed to high heat?

In general, the durability of paint on a KALLAX unit after fire damage can vary significantly. The key factor is the condition of the base material beneath the surface. If the wood has been deeply damaged by heat, such as burned or charred, the paint will not adhere properly because the surface is unstable.

Mufar70 schrieb:
I used a water-based wood paint, which should actually be well suited

Water-based paints are gentler and better for wood, but for damaged surfaces, I recommend applying a special primer or sealing undercoat before painting, to block burn residues or discoloration. Otherwise, the paint may peel or yellow.

My advice: Sand the KALLAX completely, remove all contaminants, and if necessary, apply a sealing primer. Then proceed with painting.

I can add to that. After fire damage, the surface is usually so porous and altered that paint will not last long without thorough preparation. Therefore, you should sand the KALLAX very carefully and remove all residues, soot, and hardened heat deposits.

I also recommend making sure that water-based paints are suitable for the specific substrate—in this case, explicitly for wood—and have good adhesion. A light sanding between the first coat and the next helps prepare the surface even better.

Even more important: ensure good ventilation during drying, because otherwise odors and moisture can accumulate in the paint after application, which can negatively affect adhesion over time. Patience is essential as well.

Sand the surface well, remove soot, apply a primer/sealer, then paint. This ensures durability.

Mufar70 schrieb:
Has anyone had experience with whether the new paint on the KALLAX remains durable after the fire damage or if it peels off again soon?

I had a similar situation once, and sanding down and thoroughly cleaning made a huge difference. Without proper preparation, paint on a surface like that tends to peel off very quickly.

Oh, and don’t apply the paint too thickly – otherwise, you might end up with slight cracks later on, making the shelf look like it has wrinkles! 😉 Especially after an accident like that, finding the right balance is crucial.

If the surface is still smooth after the fire damage, the paint will adhere better. Important: sand thoroughly and dull the surface. Use a primer, then it will work.