In beekeeping, there are arguments for and against using plastic beeswax foundations. Beehive wax foundation is nearly essential to most types of beekeeping.
The plastic bee foundation consists of either sheets or complete frames. In the sheet format, it is a sheet of honeycomb embossed plastic that can be clipped into a frame.
Plastic varies in quality from manufacturer to manufacturer, and there is actually very little oversight as to the quality of things which end up in the market.
Beeswax is, bizarrely enough, a natural plastic. It is a complex mixture of natural fatty alcohols, waxes, hydrocarbons, fats, sterols, esters, and a whole range of really clever natural chemicals made by the bees.
If you are a small-scale beekeeper the choices are different. When evaluating the choice of beehive wax foundation to use, the natural honey wax foundation is probably the safer choice. You can market your honey as “plastic-free” and charge a higher price.