ᐅ My KALLAX faded after being left in the garden heat – is using UV protective film advisable?

karus66 schrieb:
UV films do partially filter sunlight, but it is questionable whether they can prevent browning or yellowing, which often result from thermal aging and oxidation of the material.

That makes sense to me. I also thought that in addition to UV rays, heat plays a big role, especially during summer when a shelf at a very sunny location is exposed for a long time.

Dirkmin schrieb:
Important: The film must be suitable for outdoor use and weather-resistant. Also, the surface should be dry and clean before application to ensure durability.

Thanks for the tip about cleaning – I hadn’t considered that before.

By the way, I’m also interested: Has anyone tested UV film on plastic surfaces in the garden and can share experiences regarding its durability under changing conditions? Or if it makes sense for furniture made of particle board, and whether there is a risk of the film peeling off?

Hello tansin,

I have put together a brief overview that might help you:

1. KALLAX Material: As mentioned earlier, the surface is melamine-coated and therefore not UV-resistant. This can lead to color changes and material brittleness.

2. UV Protection Films: These are usually made of polyester with special UV stabilizers. They effectively block UV radiation but do not completely prevent heat exposure.

3. Application: It is important that the surface is completely clean and free of grease. Pressboard can swell if moisture gets trapped under the film, so it must be thoroughly dry.

4. Durability: If the film is intended for outdoor use, it typically lasts at least 3–5 years.

5. Alternative: Instead of film, a special weather-resistant paint could also provide protection.

Summary: UV films can greatly reduce fading but do not fully prevent thermal aging. With good preparation and the right film choice, using them is definitely worthwhile to extend the lifespan of the shelving unit.

I hope this helps!

I had a similar problem with a plastic table. UV film slowed down the fading but did not completely stop it. After 2 years, slight changes were still visible. As mentioned before, placing it in the shade is the most effective method.

BARSAN schrieb:
UV film has slowed down the fading but hasn’t completely stopped it.

That matches the practical test results I found – so it seems the film is more of an additional protective measure rather than a miracle solution.

jelite schrieb:
With proper preparation and the right choice of film, using it definitely makes sense to extend the lifespan of the shelving unit.

I will take a closer look at that, especially on how to best prepare the surface. Thanks for the detailed response!

I think I’ll start by trying a weather-resistant UV film and also provide shade with a sun sail. Whether the shelving unit will stay outside permanently remains to be seen. Thanks for the feedback so far!

karus66 schrieb:
If the foil itself isn’t breathable, moisture could get trapped underneath, which could cause even more damage to the wood.

This really makes me doubt. You always talk about UV protective foil as a safeguard, but who can guarantee that it won’t create some kind of greenhouse effect under the foil? With outdoor furniture in high humidity, that could accelerate deterioration.

Protective foil often sounds good, but sometimes it causes more harm than good – this applies much more to furniture than to windows or cars. In my opinion, it’s important to be critical and not rely solely on technical solutions.

LIELCHEN schrieb:
You always talk about UV film as protection, but who guarantees that it doesn’t create some kind of greenhouse effect under the film?

Exactly, that is an important issue.

Non-breathable films can trap moisture, leading to blistering or material damage. Therefore, it is advisable to use either a breathable film or to ensure proper ventilation.

Alternatively, regular maintenance with protective oils or varnishes could be considered, if applicable to the surface, although KALLAX is usually laminated and such products often do not adhere well.

Additionally: ideally, the furniture should not be placed in direct sunlight for extended periods, and despite protective measures such as films, regular inspections are recommended.