Will Blik work on all walls?

No. Apply Blik to smooth surfaces. We do not recommend wall or surfaces that are textured, rough, bumpy or newly painted. Blik is not responsible if graphics applied to a bumpy texture do not stick. Wipe your walls down with a dry cloth to remove any dust or those cobwebs hanging out in the corner. Do NOT wash your surface before installation.
I recently painted my walls, how long should I wait before applying Blik?
If you recently painted your walls, stop now. Do not apply Blik to your walls for at least 2 weeks, or even 3 if it’s cold and damp (or humid) outside. If you apply the decals before the paint is fully cured, the decals will either have trouble adhering to the wall or the adhesive will dry to the paint and when you remove the decals, paint may come off with the decals. Blik is not responsible if graphics applied to a newly painted surface do not stick.