My main interest is scale modeling, so typically we fiberglass balsa sheeted surfaces. Creating a good surface for painting. I was just wondering as glass can require filling the weave. I posted this in another thread and was told both of these items soak up a lot of resin, which would add weight. May not be the best solution for our needs as modelers. I may test it myself anyway, as it looks like cool stuff. May be easier to cut and not have to deal with the frayed edges.