Answer
May 11, 2021 - 02:34 PM
The shelf life of MAS epoxy resins and hardeners is at least one year in sealed containers, but the material can last much longer when stored between 60-90°F in a dry place. The product should be stored indoors, on a raised surface off the floor and away from exterior walls. Do not allow epoxy resins or hardeners to freeze during winter storage. After use, tightly reseal all containers. With age or when stored improperly, you may encounter issues such as crystallization of the epoxy resin or yellowing of the hardener. If there is any doubt about the condition of old material, we recommend mixing a small amount in a disposable cup to ensure it hardens before using it for a project.
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