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Aluminium window frame bubbles
Hello
A few days ago I was asked to wrap a powder coated window frame, which is part of a display for an exhibition.
The profile was as shown in my picture…
I primed the inside corners. I used Avery Supreme white using a single piece
I began by tacking the vinyl to the outer frame, which was flat, all the way round, and squeegeeing that down.
Then, heating mostly in the centre, I pushed the vinyl down into the inner frame, cut round the edges and folded down into the inside lip, and trimmed above the rubber. I post heated the hell out of it when it was finished, and left a perfect job – so I thought.
Customer calls the next day.
It’s started to bubble.
So I went back, and sure enough, there was vinyl pulling away from the inner corners.
I did my best to push the vinyl back, but it is a losing proposition, and I will have to do it again.What did I do wrong?
it wasnt a very big drop, so the stretch couldnt have been more than a few percent in the corners, and I took most of that from the middle, which was cut out.
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3 Replies
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What was the cleaning procedure?
What was the temperature during fitting?
What was the surface temperature of the painted aluminium during application?
Was there any chance of contamination. Like dirty hands, sweaty hands whilst fitting?
How hard was it squeegeed in?
In all honesty with wrap stuff there are so many variables it can be difficult to isolate the problem.
I’m curious why you needed to use any heat and why it couldn’t be flowed around the shape rather than heating and stretching the vinyl, maybe I’m missing something 🙂
Cheers
Alex
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Alex.
Cleaning, as follows…1 Water with detergent, 2 Prepsol, 3 Isopropyl alcohol.
Same way I clean vehicles before wrapping.
Temperature, a comfortable room temp. The frame had been in there for a couple of days.
No contamination. Sqeegeed hard, finally with a 3m plastic squeegee to press into corners.
The window was tall (2 meters) and thin (250mm) so it made sense to place a full width sheet over the whole thing, press into the frame, and cut out the middle.
Maybe I should have done the four sides seperately which is what I think you are suggesting, but it really was not a very deep recess.
When you wrap the windows of a car it goes deeper than this, and you cut out the middle.Simon.
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Your process sounds perfect and you obviously know exactly what you’re doing.
A few months ago we part wrapped a transit connect with avery supreme, standard cleaning procedure and all the correct conditions but a few days later it was popping out of small recesses but only down one side, we removed, re-cleaned and re-applied but a few days later the same thing again, even tested the material on a different van to isolate that as the problem. It happened about 5 times in one area and we couldn’t identify the problem, the only thing we could think of is some non stick coating on the paintwork.
Annoying when you don’t know what’s wrong though!
Cheers
Alex
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