I think it is easier then resin but I switched over to using Deft Sanding Lacquer Sealer to lay down my glass a few years ago and won't go back to either. The only problem is the stink of the stuff. I have also done a model just using a couple coats of the Deft on the finished model, lightly sanded then used water based Poly to do the glassing. It worked very well but I like using just the deft from start to finish. If you want to give it a try I will give you more detailed instructions. It's cheap too and sold at my local hardware store, Lowe's. Once you try the Deft it is hard to ever go back. It requires very little sanding before painting, just finish sanding with fine grit. You need ventilation though or it will knock you over with the stink!!