Odd overlam issue, 3M 8518

[letterman7]

Squad cars, two separate decals, printed at the same time. Printed on 3M 680C and overlam with 8518 after waiting about 12 hours. One decal on a window is fine.. the other on the car body is starting to show the 'delamination' or 'moldy' look on the edges. And all the cars have it, just not this one, and they were all done at different times. I can't figure it.. the windows are fine, the car bodies are having issues. Anyone with even a guess?

Rick

 

[CTWRAPS]

From the pic it just looks like static drip on the right image. I don’t see anything at all on left. Maybe more pics?

 

[letterman7]

From the pic it just looks like static drip on the right image. I don’t see anything at all on left. Maybe more pics?

Image on the left is the decal on the window. No marks at all around the edge. The image on the right has these marks all around the edge - they are not drips. These have formed over time.

 

[Gino]

On sensitive prints such as this, I would laminate 1/8" beyond the edge of the vinyl. Maybe go a 1/4" to play it safe. You're getting some sort of contamination in at the edge. It seems to happen as the thickness increases, which most reflective do.

We had half a fleet where something similar happened, but it was only on the top side of the print and the sides of crusiers. Not on the roof, trunk lid, but just sides at the top. Ended up being a huge salt pile they had nearby for winter snow. They were always bulldozing this stuff and the cars closest looked the worse. I took the heat for a while, until we made them keep the doors closed all the time. It was just airborne and lightly settling on the cars. Only ruining the reflective, nothing else.

 

[letterman7]

Maybe.. I just can't figure out why it's only happening on the prints that are on the body and not the glass. I would think that if it's a laminate failure as others have posted about the 8518 that it would have shown on everything that's been laminated and cut.

 

[CTWRAPS]

Maybe.. I just can't figure out why it's only happening on the prints that are on the body and not the glass. I would think that if it's a laminate failure as others have posted about the 8518 that it would have shown on everything that's been laminated and cut.

Could be because the body will retain more heat than glass

 

[jimbug72]

Maybe something they are using when cleaning the cars that they use on the body but not on the glass?