5052-H32. We use it for instrumentation chassis sheet metalwork.
FR4 is the epoxy used in a laminated pcb (eg GR10 /FR4)
Some of those out there that spend their time doing PCB layout work might be
able to give a more in-depth answer (I'm busy avoiding learning this
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.