Need to extend the working time of your Jesmonite materials? The setting times of all Jesmonite composites can be extended by adding a retarder. There is a retarder for AC100 and AC300 materials, and a separate retarder for AC730 cement-based materials. Please note that the end-user must carry out tests in the workshop environment, as extreme temperatures and humidity can affect set-up times. Addition rates can be found in the user guides for the various composites.
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