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What do I do if I see crystals in my epoxy?
Over time, crystals can develop in epoxy resin (part A). This can cause your resin to appear cloudy and eventually solidify. Resins with signs of crystallization should be heated to remove the crystals before use.
To heat the resin, bring a water bath to 50°C (122°F) and place the jug of resin inside. Do not submerge the jug. Do not heat resin above 50°C (122°F). Resin should be heated throughout; otherwise, remaining crystals will cause recrystallization. For larger volumes, hold resin at 50°C (122°F) for 1-3 hours, for smaller volumes, less time is required. Do not leave any EcoPoxy kit at elevated temperatures for longer than 8 hours.
When you remove the resin from the heat, it will be at an elevated temperature. If the resin is used immediately, it will cure faster and have a shorter working time. In some applications, this can result in entrapped air. We recommend allowing the resin to cool to 20-25°C (68-77°F) before beginning work. Working times for these conditions will be closer to that specified on the product Technical Data Sheet.