I've made a couple of coasters using the decoupage technique, but they keep sticking in to one another. I used mod podge to seal the tissue and I'm assuming that is whats causing the stickiness. How do I seal or fix this?
In addition to clear epoxy resin, you have other alternatives depending on what material you are working your decoupage art on. And often based on the shape of your object also. Like, Epoxy resin isn't a good option in case of curved surfaces.
For coasters made of wood/mdf/acrylic, you may want to use Liquitex's Matte Varnish to give it a non-shiny, matte finish.
On glass bottles and decoration objects, you may want to use DecoArt's Triple Thick Gloss Glaze to give it a shiny glossy finish.
More suggestions would include:
- water based: MINWAX's Polycrylic
- oil based: MINWAX's Polyurethane
You can coat your coasters with a layer of clear resin. Here is a good instructional video on YouTube on how to coat surfaces using clear resin.