ᐅ KALLAX surface sticky after painting – how to restore a smooth finish?

Created on: 5 May 2024 08:43
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guynon
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guynon
5 May 2024 08:43
Hello everyone,

I recently repainted an IKEA KALLAX shelf with acrylic paint to give it a more personalized look. Unfortunately, the surface remained sticky after drying, which makes the shelf quite impractical for daily use. By sticky, I mean the surface feels tacky, almost like a poorly dried paint layer or maybe too much clear coat applied.

My question is: how can I restore the painted KALLAX shelf surface to be smooth and dry again without having to sand off the entire paint job? Are there any home remedies or gentle methods that could help neutralize this sticky feeling?

I used regular acrylic paint with a water-based clear coat on top. I allowed it to dry thoroughly several times, but apparently there was still some moisture or solvents in the finish that didn’t fully cure.

I would appreciate any specific advice, as well as tips for future handling of KALLAX or similar wooden shelves to avoid this issue. Thanks in advance!
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GiRoyce
5 May 2024 10:12
Hello guynon,

First of all, thank you for your detailed and clearly explained description of your problem – that really helps a lot!

Regarding your sticky KALLAX shelf: In my experience, this issue often occurs with finishes using water-based acrylic paint, especially if the clear coat was applied too thickly or the drying conditions were unfavorable (e.g., insufficient air circulation, high humidity).

One way to fix the sticky surface is to gently sand it with very fine sandpaper (e.g., grit 400 to 600). Be sure to proceed very carefully to avoid exposing the underlying material. Afterwards, dust off the surface with a clean cloth and optionally apply another clear coat, this time applied thinly – make sure each coat dries thoroughly between applications, ideally in a well-ventilated room.

Another tip: Sometimes wiping the surface with a lint-free cloth and some isopropyl alcohol (rubbing alcohol) helps. This can dissolve slightly sticky residues from incompletely cured clear coats. Please allow it to dry well afterward!

I hope these suggestions help you move forward. If needed, I can also explain how to properly prepare KALLAX for painting to avoid these kinds of issues.
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KLO-KA
5 May 2024 13:27
guynon schrieb:
How can I restore the surface of my painted KALLAX shelf to be smooth and dry again without having to sand off the entire paint layer?

First, try wiping it with isopropanol on a cloth. If that doesn’t work, gently sand it down with 600-grit sandpaper.
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dijan
6 May 2024 09:03
GiRoyce schrieb:
Sometimes wiping the surface with a lint-free cloth and some isopropanol (rubbing alcohol) can help.

Fully agree! Additionally, some DIY guides recommend using a solution of mild dish soap and water: lightly wipe with a damp cloth containing very mild dish soap, then allow it to dry thoroughly – this can sometimes break down sticky layers thanks to its grease-dissolving properties, without damaging the finish.

In short: approach carefully, don’t smash it like the Hulk! 🙂 For me, the combination of gentle cleaning and minimal sanding saved the day. Good luck with your KALLAX project – you’ll definitely get that smooth surface back.
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blapau
7 May 2024 16:44
guynon schrieb:
I’m using standard acrylic paint with a clear coat on top, both water-based.

This is an important point because water-based coatings tend to become sticky if applied too thickly or dried at low temperatures, as the solvents evaporate more slowly.

My recommendation: First check the humidity and temperature during drying—ideally around 20-25°C (68-77°F) with a maximum of 50-60% humidity. If that’s not possible, at least ensure air circulation, for example with a fan.

If the surface remains sticky despite these measures, gently treat the affected areas with a very fine abrasive pad or sandpaper (grit 600 or finer). Afterwards, if necessary, apply a very thin layer of clear coat to restore a uniform seal.

Another less invasive method is to rub the surface with very fine steel wool (grade 0000), which smooths the surface and removes sticky residues without heavy abrasion—but be careful with plastic parts if your KALLAX includes any.

The key is balancing mechanical smoothing with preserving the paint layer. I recommend testing any treatment first in an inconspicuous area.