Hi,
I have just received my new 80W laser, but I'm a newbye in this area...I'm searching for some spray to apply on metals and glass to engrave it.
Can you tell me some of these products or some suppliers?
Many thanks :)

Cermark from laserbits for metal, you should'nt need anything for glass.

http://www.laserbits.com/

http://www.thermark.com/ will help you.