Z-POXY FINISHING RESIN is a premium light weight, two part epoxy, laminating finishing type resin. Whether fiber-glassing the center section of a wing or the entire airplane, Z-POXY is the easiest to use and best you can buy. Great for sealing model boat hulls, inside and out. Use to seal all engine and fuel tank areas. It is absolutely the best for sheeting foam wing panels. It will bond to itself, and it does not get brittle with age. Z-POXY FINISHING RESIN is easy to mix, simply combine equal parts by volume. It's thinner formula is perfect as-is, but it can be thinned if needed. Z-POXY FINISHING RESIN can also be used to seal and prepare all types of wood projects for painting.