Epoxy is a generic name that includes even the famous cyanoacrylate and also polyurethane and acrylic. We are focusing the compound that is supplied with a catalyst for being cured, or, with other words, to harden itself until reaching one of the most powerful bonds in synthetic adhesives.
Usually, there are instructions of use in the packaging although different details maybe don't appear. Some versions of this chemical have also a not very interesting side when they are prone to break when they reach maximum hardness. Epoxy is really strong but several options lack a bit of flexibility, at least enough to avoid breaks. Nevertheless in other applications it's preferred without it or it doesn't matter.
Some research about the different possibilities under the name "epoxy" is always recommended. The material must be included in the recommended list from the manufacturer and always clean, without grease or other elements that interfere in the bond. If it's like clay, the use of gloves seems more advisable than without them, as it sticks to your skin and perhaps creating to some people allergic reactions. After being mixed, and the time passes, cleaning the skin is more difficult until being more or less impossible.
Epoxy has a good side: it's difficult to create a mess because the curing time is long enough to solve mistakes. There is also fast curing epoxy, but in the first tries it could lead to problems. As with any other powerful adhesive, extreme precaution must be taken.