resin is not safe to touch immediately after the washing process. Even after washing with isopropyl alcohol (IPA) or other cleaning agents, the resin is still in a partially cured state. It can remain sticky and may still contain unpolymerized chemicals, which are irritating and potentially harmful if they come in contact with skin.
To ensure safety and proper curing of the resin, follow these steps:
After Washing: Once the model is washed in IPA, allow it to dry completely to let the alcohol evaporate.
Curing Process: Place the model in the curing machine and expose it to UV light as per the recommended time for your specific resin. This fully hardens the resin and reduces any remaining unpolymerized chemicals.
Inspect for Full Curing: After curing, the model should feel dry and hard with no sticky areas. At this point, the resin is generally safe to touch, although it’s still advisable to handle with care, especially if it will be used in applications involving food or skin contact.
Always wear gloves and avoid skin contact with uncured or partially cured resin, as it can cause skin irritation or allergic reactions.