Plexiglass type g

[mungus]

I have recently come upon a decent amount of plexiglass 5/8" type g. I am wondering if anyone knows whether this is a cast or an extruded acrylic? I would like to build a large sump out of this material.

Thanks
Brian

 

[big t]

That is the stuff! Cell cast plexiglass, have fun!!!

 

[mungus]

Thanks Big T.

I didn't want to find out I had the wrong stuff after it was too late.