Had she "only" applied only once to test the interior. The film but you should fix the exterior of the disc, so that the heat really remains outside. Yet does not replace a shutter which acts better.
This film was delivered in a cardboard tube in free fall inside the roller (approx had ordered 152 * 500cm and 3 windows so foiled now)
Therefore, the outside was badly damaged. The resolve other film better suppliers (eg inside mounted, or in a 3-cornered package). She was also just turned himself in and fastened with a tape and not on a cardboard tube
Meanwhile, I also know how not to do on the glass slide.
The best solution for me was so far actually spray a foaming soap carpet on the glass, bringing the film into position, then "doctoring" and with a very sharp "cutter" bring on a measure (or, depending on the window previously "very generous" . precutting (festrackeln from top to bottom.
It has, if the film had stuck to themselves, because they had imprudently separated the film, no chance to solve it.
Therefore, one should (best 2t) Spray when releasing the film, the film simultaneously with the soapy water from both sides. Inevitable mess, so towels underneath
And I had partially also attracted white, thin cloth gloves for the film not to be greased.
The result can then however also be seen.
If the interior darker than the exterior, then you can see only a diffuse reflection from the outside.
Even if you stand directly in front of the foil-coated disc, you have to look through no chance (brightness difference).
From inside you can see a strongly tinted windows through the glass.
It is really very much darker, but has a visual and UV protection (heat remains largely outside in bright sunlight, with a shutter for heat insulation is much better).
Of course you can see every wrinkle, every scratch etc. Therefore, you should work from the outset clean and do not wrinkle. For this purpose it needs a lot of practice and skill.
Or one is satisfied with the mistakes, as I then.
But with the foam, I am also only come in 3rd window plan, previously it was only a soap solution without foam and not be frugal, which must be on both sides of the film really slick, then it is easier and there should be no scratches on blade coating.