I've only used the 1/4" thick stuff not the 1/2".
Last time I ordered some, one supplier had Alumalite with black center, and another Alumacore with white center.
For post and panel signs, I liked the Alumalite better, but it does dent easy.
Always tell self installing customers just to barely snug the screws or they will crush it.
It is a rigid product if handled carefully, but a beer bottle, etc..would put a good dent in it.
Even though it's less rigid, I mostly use the dibond or maxmetal when possible.
Haven't needed any, but now there is heavy duty versions of these products.