ᐅ Darkening of KALLAX units – is it possible to prevent this?

Hello everyone,

A few months ago, I bought a KALLAX shelving unit from IKEA, and I’ve recently noticed that the originally light oak veneer is gradually darkening. I understand that wood and veneered surfaces can naturally age when exposed to daylight, but this effect bothers me because the furniture no longer looks as fresh as it did at the beginning.

My question to the community: Are there any ways to prevent or at least significantly slow down the darkening of the KALLAX shelving unit?

I’m especially interested in whether some kind of sealing, varnishing, or special UV protection could help without altering the appearance too much. If anyone has practical experience or specific recommendations, I would be very grateful for detailed advice.

Direct tip: Wood needs UV protection, otherwise it will darken over time. Clear furniture lacquer or special UV-protective oils work well.

Interesting point that you want to avoid any visual changes. However, how exactly are you measuring the darkening? It could also be intensified by dust, grease, or other environmental factors. Genuine UV protection only works if the wood has not already aged.

Genevieve schrieb:
How exactly do you measure the darkening over time?

Good question. I compare the shelf with less used shelves from the same series, which I only received recently. The difference is mainly noticeable in direct daylight. Areas that are less exposed appear lighter. I make sure that there are no grease marks or dirt.

I am actually concerned about the long-term effect, as I plan to use the piece of furniture for several years.

Hey Fardu, darkening is really a classic issue with oak wood and veneer. 😅

Sometimes you can slow it down a bit by not placing the shelf in direct sunlight – a little shade can make a big difference.

And yes, a matte clear coat can not only protect but also give it a nice finish. Just don't apply too much, or it can quickly look artificial. 🙂

If you want UV protection, choose a clear varnish with a UV filter. Alternatively, wood oil with a UV blocker also provides protection while keeping the surface breathable.