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AdministratorSeptember 4, 2020 at 8:14 pm
If you look at where the fail starts and stops. It is on the double layer.
This can happen if the post-heating over the twin layer is not intense or prolonged enough.
It is a common failure on vehicles where full wrapped digital prints cross recessed areas, the overlap pops. there are a few reasons for this, but one is if you look closely at my picture.
The lower layer of vinyl has popped back, lifting the top layer adhered to it.
This is most likely because the two layers have been post heated while stacked like they are.
when you take the surface reading with a laser (that’s IF ones actually been used) the reading is taking the “surface” of the vinyl. in this case, the top layer. however, if the heat hasn’t hit the post-heat recommended temperature, then the lower layer will be that bit cooler again. so the bottom layer pops, taking the top layer with it.
You should be post-heating each layer as you apply it. not sometime later, or later again, when the two layers have been fitted.
Pull-back tension happens the instant the vinyl is applied and continues to happen until it has been post-heated. you must cure it as soon as possible.