Seems to be some pretty cool stuff. Watched a YouTube vid where they coated a cardboard box then filled it with water a few minutes later. Then sprayed some more coating on top of the water and was able to stand on it like a waterbed!
awesome!!! Congrats on the success. Please keep up the great convo everyone. I'm seriously considering building a plywood tank and want to learn as much as i can!!! Thanks again everyone for the great input!!!I went with 3 layers of poly resin with Matt cloth, then sealing layer of epoxy resin(tinted green) in my 220 gallon ply tank. Worked like a charm and tank has been running 2.5 years with no problems.