If you haven’t played with resin casting yet
Polyester Resin: is a liquid plastic that hardens when a few drops of the catalyst are added to create a chemical reaction. Polyester Resin is durable and is the resin of choice for industrial applications and serious crafters who are experienced in resin casting. This resin is highly toxic and should be used in a well-ventilated area using protective masks to avoid inhalation. One main advantage of Polyester Resin is the depth in which it can be poured for larger embed projects. Polyester Resin is cheaper to buy than Epoxy resin as it is generally purchased in larger quantities such as 1lt + tins.
Epoxy Resin: These resins are more frequently used in the crafting and hobby world, they are easy to use with a low toxicity, making them suitable for ventilated craft rooms and work areas. Epoxy resin is perfect for jewelry casting as it has a shallow setting depth, so it will cure quickly when used correctly.
Basic Resin Casting to get started.
Resin Pendants How to cast shape and finish your own rustic jewelry
Tutorial: Wood and Resin Earrings
How to make Wood and Resin Necklaces
HOW TO MAKE A SECRET WOOD PENDANT NECKLACE
Tutorial : Real Flower and Resin Jewelry using Wood Frames and Shapes