I have not used mog podge or diamond glaze myself, but from my understanding, if you just want to seal it, mod podge should work good. Otherwise, daimond glaze will make it pop. I hope that helps.
I've used both. Modge Podge is good for decoupage and sealing (Collage Pauge is similar).
Diamond Glaze is like a resin. It's clear and glassy and dimensional. It bubbles fairly easy, so take care with that if you use it.
oh thanks! :) I just bought myself a mod podge.
I think it will work great on my painting.
Thanks you guys! :) You've been so helpful..
Best wishes to you and have fun!