Why do bubbles show up under film on some cars but not on others?

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    Pascal Wells
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    I have been curious about this for weeks, and I would like to understand it before I spend any money. My cousin has clear film on his white Toyota Hilux and it still looks perfect after two years, but a colleague of mine had it done on his black Nissan Altima and got small bubbles within a week. I drive a grey Hyundai Santa Fe and I am thinking about doing the front, so I want to know what makes the difference. My brother says it is all about the installer, and that a good one never leaves a single bubble. My neighbor says some bubbles are normal because water is used during fitting, and it needs a few days in the sun to dry out. A friend at work told me that dust is the real enemy, because a tiny speck under the film shows up as a bump that never goes away. Another colleague said the shape of the bumper matters too, since deep curves are harder to stretch the film over without trapping air. I read a page on last night, and it explained that moisture, trapped air and dust each cause different kinds of bubbles, and that some fade by themselves while others need to be fixed. That made me realise there is no single answer. Since then I have been looking for Quick answers on why PPF bubbles appear, because I want to know what to expect on delivery day and what to complain about. My questions are easy. Does a clean, closed workshop really make a difference to the final result? How can I tell a bubble that will dry out from one that is a real defect? Do darker cars show more problems than lighter ones, or is that a myth? And is it fair to ask the installer to show me the car in daylight before I pay? Please share what you noticed on your own car. Thanks for reading.

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