What does it mean if my resin turns cloudy, chunky, or solid in the container?

Repeated cycles of freezing and thawing can cause epoxy resin to turn cloudy, chunky, or solid. This is known as crystallization. If this happens, it's not a problem, you just have to return the resin to its liquid state by warming it to dissolve the crystals. Place the crystallized container of epoxy resin, lid off, in a warm-water bath, heated to approximately 140°F. Using a clean stick, gently stir the resin until the crystals melt. Remove the container from the water, and replace the lid tightly.