ᐅ Why do the colors of BILLY furniture change?

Hello everyone, I have BILLY shelves from IKEA and I have noticed that the color of the furniture changes over time, especially when exposed to direct sunlight. I am curious: why do the colors of BILLY furniture change? Are there specific factors such as the materials used, coatings, or environmental influences responsible for this? Is this a form of material aging or rather a characteristic of the manufacturing process? I would appreciate an explanation that covers the typical building materials and finishes used in BILLY furniture and perhaps also how to at least reduce the discoloration.

Color changes are usually caused by UV rays and light. The material, often laminate or film, fades due to sun exposure. Temperature fluctuations and humidity can also affect the appearance.

Here is a more detailed explanation: BILLY furniture is mostly made from particleboard with a melamine or foil coating. These coatings are durable but not fully UV-resistant. Prolonged exposure to sunlight can break down the chemical bonds in the color pigments, leading to fading or yellowing of the surface. The quality of the coating also plays a role. Additionally, humidity and temperature affect the wood-based materials, as they expand and contract slightly, which can subtly alter the surface. Protecting furniture from direct sunlight and ensuring good ventilation can help slow down these changes.

Elijah42 schrieb:
The color change is usually caused by UV rays and light.

Thanks for the quick response. That makes sense to me, but could you explain in more detail how the laminate or film surface reacts to UV exposure? I’m also interested in whether all colors are affected equally or if there are specific colors in BILLY that tend to fade more.

Kinbu schrieb:
Long-term exposure to sunlight can break down the chemical bonds in color pigments, leading to fading or yellowing of the surface.

That is correct. Different color pigments react to sunlight in varying degrees – light colors often fade faster, while darker ones may sometimes yellow. The melamine coating provides basic protection, but it is not 100% UV-resistant. Additionally, slight scratches or worn areas can accelerate changes in the pigments. Therefore, to preserve the furniture for a long time, it is best not to place it too close to windows and to clean it regularly to minimize abrasion.

Interesting points, but I have a question regarding material aging: Is the fading of colors on BILLY furniture really mainly caused by UV exposure, or do the binders and the paint used also play a role?

In my opinion, the conclusion that laminate or foil simply fades is a bit too simplistic. It would be helpful to know how the chemical composition of the surface ages over time and whether manufacturing processes make a difference.

PeoDaniel schrieb:
Melamine coating provides basic protection, but it is not 100% UV-resistant.

What exactly is the level of this protective effect? Are there any reliable tests or manufacturer data on this?