Using Ben Nye's Castor Sealer is a breeze. First, make sure your latex material or appliance is clean and dry. Then, apply the sealer evenly using a brush or applicator. Let it dry completely before applying creme makeup. For best results, follow the drying time instructions. When it comes to storage, keep the sealer in a cool, dry place. Avoid exposing it to extreme temperatures. Also, make sure the container is tightly closed to prevent it from drying out. If you have any unused sealer on your applicator, clean it properly after each use. This will help keep the sealer effective and your applicator in good condition.