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  • What is the best way to store ready-mix compound for another use?

    Clean sides and lid of container so no dried compound falls into the mixture. Level joint compound surface with a knife and cover container tightly. If storing, cover leveled surface of joint compound with approximately 1/2" of clean water and cover container tightly. Pour off water before reusing joint compound. Do not store in direct sunlight and protect from extreme heat and cold. The shelf life of an unopened container is up to nine months under proper storage conditions.