The shelf life of EnvironMolds products can vary depending on the specific type of product you are using. Generally, most silicone and urethane mold materials have a shelf life that ranges from one to two years when stored properly in a cool, dry environment, away from direct sunlight and extreme temperatures. It is essential to check the product packaging or the technical data sheets that accompany each product for specific information regarding shelf life, as well as any recommended storage conditions. Additionally, users should be aware that after the expiration date, the performance of the materials may diminish, which could affect the quality of the molds created. If you seek further details about specific products or their shelf life, it may be helpful to refer to the current information available on the EnvironMolds website.