RE: Low Viscosity Epoxy and Silk
The WBPU is going to soak in much more than epoxy resin. If you don't add some glass then the grain/cells will swell with changes in temperature. All of sudden your "glossy" finish won't be flat and smooth anymore. The advantage to glass is that the fibers will span the grain making the surface stable. If you use .56 ounce glass and epoxy you will adding around .001 ounces per sq. inch (.028 grams). If you use 1 ounce glass + epoxy you will add around .0016 ounces (.0454 grams) per square inch. This includes sealing with Rave Aerosol hair spray to seal the surface before doing the lamination. The paint and primmer will end up adding more weight than the glass and epoxy (if done correctly).