Looks like about the same stuff that is multi-level marketed for a bunch more money by another outfit. I bought a couple rolls of 4" wide fabric from a grain bin dealer and picked up the sealer at the local hardware store - turned out they run sales from time to time and it is even cheaper. I did my bins in '04 and paid $39 for a 5 gal. pail of the stuff. I went back and recoated the seal a year later and it is holding fine and won't need attention this year.