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Use Hydrogel® Retarder to extend the working time of Hydrogel® Mold Compound. The working time of Hydrogel® Mold Compound is about 5 minutes, but can be extended using Retarder:
|% of Retarder in Water||Approximate Working Time|
1 quart of Hydrogel® Retarder
Specifications & Product Information
Adding ~3% retarder to the water will increase working time from 5 min to 7 min. Adding ~6% will result in an 8-min working time and adding ~9% will result in a 10-min working time. Combine proper amounts of the water/retarder mixture and Hydrogel powder in a clean container. Mix ratio by weight is 3 water/retarder to 1 Hydrogel powder or approximately 1 water/retarder to 1-1/4 Hydrogel powder by volume.