RE: Sealer for fabric
I prepped the wood surface by sanding then spraying with water. After the water dried I sanded again. I put 0.75oz glass cloth down with polycrylic right out of the can using a foam brush wide enough to fit in the can. I let this dry for a couple of hours then put on another coat. The next day I sanded very gently to knock down bumps using 200 grit. You can see if you cut into the fabric. This starts to fill the weave very well. I think I put down six coats and got a nice and smooth surface that will require minimal primer. I have to wait until it warms up before I can do that! Polycrylic seems durable enough (it's a little soft) but epoxy would be better. For the price and what I want it for (sport scale) it's perfect!