Is acrylic (like the 1/4quot; acrylic sheets from home depot) a kind of plastic and can it be melted easily? i want to shape a sheet of it with a heat gun... and can it be painted easily using spray paints for plastic?
It can be either a thermoform or a thermoset. So in some cases it will melt when heated, and in others it will not (and will eventually just burn). You should probably ask someone at the shop for some advice, just to make sure.
It is a plastic. It can be painted with the right type of paint. Whether itcan be shaped with heat, i can not answer.