The interior wall graphics business is increasingly becoming popular and due to the explosion of individuals who are presenting interest in the matter, here are a few things to give due consideration especially if it is your first time in dealing with the subject matter.
When it comes to where you are planning to stick vinyl graphics, not all surfaces may work for you. Bear in mind that Self-adhesive plotter films were designed to replace paint in commercial signage. So they are made to adhere to standard industry substrates like glass, aluminum, and plastics. All of these have very smooth surfaces that produce a good bond between the substrates and the vinyl’s adhesive. You might be going too far if you are planning to stick these films on interior painted walls.
Putting vinyl on any surface that is rough or porous seriously degrades its ability to adhere. Textured, painted walls are some of the toughest challenges in the vinyl world today. Bear in mind that the rougher the surface, the weaker the bond with the adhesive will be. Unsealed concrete walls present a different challenge. They’re not that rough, but are very porous. Getting graphics to stick to such walls requires the use of a vinyl with a unique high tack adhesive.
Most interior walls are painted. Unlike the sign industry, there isn’t a standard vinyl-friendly paint in use on interior walls, so there are variables that can affect success. The two most common interior paints used are enamel and latex. Enamel is best because, like glass and aluminum, it provides a smooth, non-porous surface. Latex is more porous and is not as suitable for vinyl graphic application. The bigger issue with paint is out-gassing. Freshly painted walls emit gaseous solvents until the paint cures. If these gases are trapped under an applied vinyl graphic, they may cause bubbles or react chemically with the adhesive and weaken it leading to failure. That’s right, I said failure. Putting vinyl graphics on any freshly painted surface will lead to failure due to out-gassing of the substrate.