Paint types – Powder coated paints and emulsion paints
Powder coated paints, emulsion paints as well as dust and dirt free paint all have additives in the paint which weaken and soften the adhesive on the stickers, which causes the sticker to lose its stickiness. Especially for fungal free paint, they contain chemicals that prevent materials from sticking to the surface. Enamel is recommended, as like glass and aluminium, it provides a smooth, non-porous surface.

Cleaning chemicals
Chemicals in the cleaning agent might not react well with stickers, causing stickers to not adhere on the required surface.

Fresh paint
Freshly painted walls emit fumes until the paint cures. If these gases are trapped under an applied sticker, this may cause bubbles or react chemically with the adhesive and weaken it leading to failure.
Rough texture walls or surfaces.