Reddit reviews BOATYARD Polyester Resin Laminating Resin, Fiberglass Cloth, Glassing, 1 Gallon w/MEKP Hardener, Clear Resin Fiberglass KIT, Boat Surfboard Building, Fiberglass Boat Repair KIT, Fiber Glass Resin
We found 3 Reddit comments about BOATYARD Polyester Resin Laminating Resin, Fiberglass Cloth, Glassing, 1 Gallon w/MEKP Hardener, Clear Resin Fiberglass KIT, Boat Surfboard Building, Fiberglass Boat Repair KIT, Fiber Glass Resin. Here are the top ones, ranked by their Reddit score.
Perfect Laminating Resin Choice For Base Coats & Remains Tacky For Ultimate Layer On Layer Bonding!High Quality Professional Grade Fiberglass Resin and Hardener!Superior Polyester Resin Excellent For Wet Out Of Fiber glass Mat, Cloth, Fiberglass board !Great Sealer For Wood Repairs!Kit Includes: 1 Gallon With 2oz MEKP Catalyst!
Expense is subjective. It's not difficult but can be smelly, messy, and the molds can get touchy if they're elaborate.
The (possibly optional) ancillary equipment such as pressure pots can get really costly.
There are lots of videos on YouTube from which to get an idea if it is something you'd like to pursue. Search for resin casting.
Peter Brown on YT is an entertaining experimenter in casting as well as other maker goodies.
Edit: a word
Not what you asked for but polyester resin is much cheaper than epoxy.
It does have a strong, distinctive smell while setting.
http://www.amazon.com/Polyester-Resin-Boatyard-Fiberglass-Gallon/dp/B006VY7ZY8/ref=sr_1_7?ie=UTF8&qid=1375822997&sr=8-7&keywords=MEKP
Just in case, you can also search for polyester casting resin.