...
https://compositescanada.com/fabrics/
https://www.youtube.com/user/easycompositestv/videos
Canadian site for composite materials, including fiberglass cloths: https://www.rayplex.ca/page328.html
Thickness of 9oz cloth: 0.28mm. To achieve a thickness of 1/8 inch would depend on layers of fiberglass and applied resin (need more research).
Fiberglass Sandwich (Foam core)
A foam core with fiberglass on either side adds stiffness and strength while keeping the piece itself relatively light. When a foam core is used to double the thickness of a structure, the relative strength can go up by 7 times while barely increasing the overall weight.
The foam core in addition to the fiberglass skin forms compressive and tensile properties on either sides. Which is why adding a core of any kind increases strength.
Some resins melt foam, need to find a resin that does not melt foam and is also fire resistant.
Resin
Epoxy resin will be used.
Note: sandwich fiberglass composite
Polyester resin melt foam, so most likely an epoxy resin would be used.
Material Concepting
...