HP L26500 Subsurface Print failure

[Ditchmiester]

Hi all. Here is a picture of a sign we printed laminated and cut. It's .010 polycarbonate subsurface printed. Mounted to .060 PETG using D and K white mounting adhesive. We have made thousands of signs using this process and never seen failure in the field like this. Any ideas on what what would cause the ink to separate from the polycarbonate and stay on the white adhesive. I'm hoping to have more insight when the customer sends the signs back after we replace them.

 

[Ditchmiester]

Bump

 

[chafro]

Have no idea but You should try printing directly to clear polycarbonate film (I use lexan) it works very good. Then just screen print white in the back and add the adhesive in the back.

better quality and cheaper to do.

i have made tens of thousands of prints, They have been in stores for a couple of years and they look just as the day we printed it.

 

[Ditchmiester]

That is printed directly to Lexan. We use a white adhesive instead of screen printing white. Then mount it to rigid plastic. I've been making signs like this for z couple years and I've never had this happen. We are puzzled. I'm hoping they return the signs so we can further inspect them.

 

[chafro]

Ohh,, then is strange.

Lexan comes with a liner. Maybe printed over the liner? We have accidentally done it.

 

[mpn]

Was it picked at? Looks like only the edges were messed with?