Retarder HG-Polyurethane & silicone mold materials and casting plastics for making rubber molds to cast concrete, plaster, wax, resins & foam from Polytek Corp.

Retarder HG

Retarder HG is designed to be used with Hydrogel N mold compound for increasing the working time of Hydrogel from 5 minutes to 10 minutes. 3% Retarder added to the weight of the water used for Hydrogel increases working time to 7 minutes. A 9% addition increases working time to 10 minutes. Hydrogel is great for molds of the human body.