To effectively prevent PU toy paint from fading, you can take the following methods:
1. Choose high-quality PU paint
Select high-quality paints specifically for PU materials to ensure strong adhesion and good durability. Common high-quality paints include acrylic paints, polyurethane paints, etc. These paints can better combine with PU materials to prevent paint peeling or fading.
2. Surface pretreatment
Clean the surface: Before painting, make sure the surface of the PU toy is clean and dust-free. Wipe the surface with a damp cloth or appropriate detergent to remove impurities such as oil, dust, etc. to prevent the paint from not adhering evenly.
Sand the surface: Slightly sand the PU surface to increase its roughness and help the paint adhere better. Use fine sandpaper to sand gently to avoid damaging the PU surface structure.
3. Primer treatment
Before applying the topcoat, use a special primer. The primer can improve the adhesion of the topcoat, enhance durability, and reduce the risk of paint peeling.
4. Apply thin layers of paint
When painting, avoid applying too thick a layer of paint at one time. Apply multiple layers of paint in thin layers, and wait for each layer to dry completely before applying the next layer. This ensures that the paint surface is even and strong.
5. Reinforcement coating
Use a protective varnish to seal the topcoat and increase the wear resistance and fading resistance of the paint surface. The varnish can provide additional protection for the paint surface to prevent fading when used for a long time or exposed to sunlight.
6. Avoid exposure to extreme environments
Avoid PU toys from being exposed to high temperatures, strong sunlight or humid environments for a long time, as these factors may accelerate fading or peeling of the paint surface. When using, try to avoid friction with sharp objects or rough surfaces.
7. Storage and cleaning
When storing PU toys, try to keep them in a cool and dry place away from direct sunlight. Clean the surface regularly with a soft cloth and avoid using detergents containing solvents or strong corrosive agents.
The above methods can effectively improve the durability and fading resistance of the PU toy paint surface.
