Painted Walls
Smooth, clean, fully cured paint is generally the most suitable surface when permitted by the product.
Fresh paint may release moisture or react with adhesive. Matte, satin, gloss, and specialty paints can also behave differently.
Textured Walls
Texture reduces the contact area between the adhesive and wall.
Light texture may work with some decals, while deep orange-peel, brick, stucco, and rough plaster may cause lifting. Confirm suitability before purchasing.
Wallpaper
Applying decals over wallpaper can create removal risks.
The decal adhesive may bond more strongly than the wallpaper surface. Removal could lift printing, coating, or seams.
Use only when explicitly approved.
Glass and Mirrors
Smooth glass can provide strong adhesion.
Clean the surface thoroughly and avoid installing across seals or frames. Consider visibility from both sides when applying to windows.
Furniture
Some decals may be suitable for smooth furniture, cabinet panels, or doors.
Painted, laminated, unfinished, and coated surfaces respond differently. Test before applying to valuable furniture.
Unsuitable Surfaces
Avoid dusty, damp, peeling, oily, porous, or unstable surfaces.
Do not install over loose paint, mold, damaged wallpaper, or crumbling plaster.
Conclusion
Smooth, clean, dry, and stable surfaces generally provide the best results. Always review the product instructions and test uncertain paint, wallpaper, textured walls, glass, and furniture before full installation.