You can apply geometric wallpaper to many smooth and clean surfaces, but not all surfaces are suitable. Here’s a clear and helpful guide on what surfaces you can apply wallpaper to—especially peel-and-stick or traditional types like those from The Comfy Mart: ✅ Best Surfaces for Wallpaper Painted Walls Smooth, dry, and clean painted walls are ideal. Satin, eggshell, or semi-gloss paints work best. Make sure there’s no dust, grease, or loose paint. Primed Drywall Fresh drywall must be primed first for the wallpaper to stick properly. Use a wallpaper primer or sealer for the best results. Wood (Smooth Plywood or MDF) Clean, sanded wood panels can hold wallpaper well. Avoid rough or untreated wood. Glass and Mirrors