What is the shelf life of Accu-Cast alginate?

Article courtesy of Smooth-On, Inc.

Properly stored at room temperature (73°F/ 23°C) in a low humidity environment (below 50% RH), these products have a shelf life of 18 months from date of manufacture in unopened containers.


This FAQ article is offered as a guideline and offers possible solutions to problems encountered during mold making and casting. No warranty is implied and it is up to the end user to determine suitability for any specific application. Always refer to the provided Technical Bulletins (TB) & Safety Data Sheets (SDS) before using any material. A small scale test is suggested to determine suitability of any recommendation before trying on a larger scale for any application.