I had ordered some beeswax foundation for my medium honey supers but needed enough for 4 deep foundation pieces to finish out a deep I was preparing to place on one of my small hives. I stapled two of the medium size pieces together and used fishing line to support it in the middle. I melted wax and poured in the top and bottom groove of the frame to hold the foundation top and bottom. Notice the bees did something over the fishing line but didn't draw any comb on the 100% beeswax. However on the plastic foundation right beside it they did / have started drawing it out. The plastic foundation is just like it came from the wholesaler without any additional wax or coating. Since the bees didn't prefer the wax foundation I have pulled it out and replaced it all with plastic.