| How is this so? Most car windows are coated | | | | This is why most vehicle graphics installers |
| with silicon or other types of substrates that | | | | discourage against placing decals on windows. |
| make vinyl adhesion short lived. And because | | | | Apart from the incompatibility of the window |
| vehicles are exposed to direct sunlight and heat | | | | coatings with vinyl, they also require a lot more |
| for long periods, vinyl decals, which are expected | | | | work to install. For instance, while car bodies are |
| to last at least 3 years, might not stay on. In | | | | okay with calendared vinyl, glass windows respond |
| addition, most of the tints that coat car windows | | | | better to perforated cast vinyl, which are |
| are also not vinyl friendly. While the vinyl decals | | | | relatively pricey. Also, because car windows still |
| stick longer on them, they become a problem to | | | | have to serve their purpose, that is, for those |
| take off without running the risk of destroying | | | | inside to be able to see what's outside, special |
| the film. | | | | materials have to be used. |
| It would also be prudent to do away with | | | | This does not say, though, that vinyl graphics |
| dark-colored graphics, because they respond | | | | should never be placed on glass windows. It |
| adversely to sunlight as they absorb greater | | | | simply serves as a reminder that installing window |
| amounts of heat. If left for a long period of time, | | | | graphics is a more tedious and costly process. |
| the glass might eventually explode. On the other | | | | However, if you really must have graphics on |
| hand, vinyl adhesion does not work in too cold | | | | your car window, then you should bring the job to |
| weathers, particularly those under 40 degrees | | | | the professionals, to be safe. |
| Fahrenheit. | | | | |