What is the name of this substrate?

[DesireeM]

A customer brought in this piece of scrap material to see if we could route a sign out of it but we'd need to order more of it to complete the job. Our CNC guy can't remember the name and I've tried searching but to no avail.
It looks like some sort of PVC to me...the surface is white and glossy and the uncut edge is rounded and also glossy but the inside is textured and matte.
Can anyone identify it for me?

Thanks,

 

[DerbyCitySignGuy]

Maybe the gloss PVC from Harrington Plastics?

 

[DesireeM]

Looks like it might be 18mm Komacel...so gloss outdoor PVC.

 

[Billct2]

Yea, it looks like a gloss PVC.Gloss Foam PVC Sheets | Access Plastics

 

[fresh]

another vote for gloss pvc

 

[CL Visual]

Definitely Komatex or Komacel. Outdoor PVC. They all have a glossy sealed face.