One of the most popular brands of epoxy coatings and color kits is CountertopEpoxy.com's FX Poxy. Rated highly on Amazon.com, FX Poxy is anti-bacterial and UV resistant.
CountertopEpoxy.com offers both clear and colored epoxy kits; colors include black pearl, charcoal galaxy, marble mountain and muddy river. The site also offers a tool kit for epoxy mixing and application.
Pro Marine Supplies provides highly-rated "Crystal Clear" tabletop epoxy that is suitable for a variety of surfaces, from wood to hard stone. The company supplies tabletop epoxy mixing instructions on its website; the instructions include a list of necessary items and tools, tips for beginners, and a warning about use of the product.