Things You'll Need
Flexible plastic surface
Wooden popsicle stick
Most epoxy glues require you to mix the glue with an activator or hardener. Epoxy glue that comes in two parts is generally more durable than premixed epoxy. This mixing process activates the epoxy and gives it a long shelf life. The shelf life and mixing process will vary, depending on the manufacturer, but you should follow the same basic process.
Measure out the epoxy and activator, according to the manufacturer's instructions. Place the epoxy and activator on a flexible plastic surface, such as a plastic cutting board or the plastic top of a coffee can.
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Mix the two parts together, with a wooden popsicle stick or plastic knife, until they are thoroughly combined. Mix slowly, so that you don't work too much air into the mixture.
Heat the epoxy in the microwave according to the manufacturer's directions. Not all types of epoxy glue will require heating, but heating will thin and smooth out some types of epoxy.
Apply the epoxy within the time frame given by the manufacturer. Depending on the glue, this could be anywhere from 10 minutes to one hour.
Clean epoxy residue off prep surface with acetone or rubbing alcohol. Rinse with water and remove epoxy from your skin with soap and water. Use acetone in a well-ventilated area or use a vent hood.