I found this interesting article by Andrew Werby of Juxtamorph – United Artworks titled Difference Between Polyester, Acrylics and Epoxy Resins obviously about the variants of these materials. I believe I will be working with Polyester Resin or Perspex, starting my experimentation tomorrow, along with conforming which of the three types I have, (as this is extremely important not only for safety reasons, but also for how to manipulate it).
Unfortunately according to this article the Polyester is not as clear (which is a huge shame! since some of my ideas I am wanting the resin to resemble glass) nor is it as flexible as Acrylic, as acrylic can be repetitively reheated to form, however on a plus side it is not nearly as toxic.
Another thing to take into consideration is that some of the information here seems to only refer to creating these resins from scratch, in liquid form, so set acrylic and so on may not have many safety issues, except of cause when heated, as it vaporizes.
To read the full article click this link or the title above.
Werbly, Andrew. “Difference Between Polyester, Acrylic, and Epoxy Resins » Juxtamorph » United Artworks.” Juxtamorph » United Artworks. Last modified 2016. http://juxtamorph.com/difference-between-polyester-acrylic-and-epoxy-resins/.