To prepare the grocery bags for fusing you need to trim off the handles and trim off the seam at the bottom.
Fusing acrylic sheets.
The viscosity of the glue enables it to fill all the gaps or cracks between the two surfaces.
To guard against cracking place the acrylic on a flat sheet of glass in a shop oven not the one in your kitchen at about 180ºf 82ºc for about 1 hour per mm thickness then let them air cool.
Gluing acrylic sheets together is a much different process than household or traditional gluing.
This will anneal the acrylic and relieve the built up stress.
You will end up with a double layered piece like a tube.
When applying cement solvent make sure that your acrylic sheets fit together without using.
When you are done smooth out the bag into a flat rectangle you can leave the side seams connected.
Glue acrylic sheeting using cement solvent choose the best adhesive.
I show how to use a soldering iron to fuse plastic together.
Things you ll need 2 polycarbonate sheets methylene chloride or chloroform.