laminator mounting problems with Coroplast

[anotherdog]

I have a Royal Soveriegn cold laminator, I'm okay with just about anything with the exception of full width (48 inch) mounting adhesive on Coroplast.

there seems to be a slight gap at either end of the top rollers, this doesn't quite make an airtight seal with the adhesive and Coroplast, I'm getting bubbles.

If I take the rollers to the next thickness down I'm crushing the cells.

The Laminator is only 2 years old, so I don't think I have banana rollers.

Anyone else seen this?

 

[Sticky Signs]

The rollers come with a slight crown from the manufacturer. It's not a defect. Are you centering the boards on the laminator?

 

[anotherdog]

the boards are centered. I'm thinking maybe I need to feed something with it to build up the thickness yet not thick enough to crush the Coro.

The nature of this laminator is it has about 6 thickness presets.

Thank you for letting me know about the slight crown. I did suspect it.

 

[MikePro]

when i use my laminator to apply sheets of printed graphic to coroplast.... i dial down the pressure so that its just barely enough to grab and pull the sheet thru. Seems i always get bubbles at higher pressure setting.

 

[cgsigns_jamie]

I have the same issue with my RS.... I usually have to go up the next pressure setting and just deal with crushing the cells.

 

[anotherdog]

So I'm getting either dial up or dial down.
I guess I'll have to play with scraps today.