ᐅ My KALLAX unit has become brittle after being left outside on the balcony over the winter – is there a way to restore the material?

Hello everyone, I stored my KALLAX unit on the balcony over the winter because I couldn’t put it inside the room. Now that it’s getting warmer, I’ve noticed the material feels very brittle and shows some surface cracks in certain areas. I suspect that moisture and cold have severely affected the laminate or the compressed wood fiberboard. I’m wondering if and how this brittle material can be restored. I’d prefer not to replace it since the units are quite expensive, and I could still use the frame. Has anyone had experience with treating this kind of material, perhaps by applying special varnishes, care oils, or similar products? Or is it more likely a case for bulk waste disposal? I’d appreciate any advice or assessments about the durability and risks of this kind of damage.

Brittle KALLAX often indicates that the laminate has swollen or the surface is damaged. It is better not to treat it with water. Try using furniture wax or a suitable wood care oil instead; this can often make the material somewhat more flexible.

That sounds really frustrating, and I can understand your annoyance. I had a similar situation once with an old shelf that was kept outside. To salvage it, I lightly sanded it and then treated it with hard wax, which worked well. It might work for you too and could be worth a try.

Hello meloso, I understand your problem well. KALLAX is made of wood fiberboard, which can swell and become brittle when exposed to moisture. It is important not to treat the surface with too much moisture, as this will worsen the damage. Light sanding with fine sandpaper (grit 240 or finer) can help smooth out old cracks slightly. After that, I recommend treating it with a special furniture oil suitable for laminated or coated surfaces, as it nourishes the fibers without causing the material to swell. Alternatively, special furniture wax solutions can also work. Try this first on an inconspicuous area. Unfortunately, this only holds if the structure is not completely destroyed. If the board is already heavily swollen, it becomes difficult. For long-term stability: definitely store it in a dry place afterwards.

If the material is brittle, do not clean it with water under any circumstances. Wood balm or furniture oil can help by softening the surface and making it more resilient.

Simply sand it down and then apply maintenance oil. This is often the best and quickest solution for brittle material in KALLAX.