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Slo-Jo® Platinum Silicone Cure Retarder is an additive designed to extend the pot life (working time) of Smooth-On platinum silicone rubber products and Soama Foama® silicone foam without affecting the ultimate physical properties. The retarder is added by weight to Part B and should be thoroughly mixed into Part B before adding Part A.
Note: Cure time of the platinum silicone rubber will be extended in proportion to the amount of Slo-Jo® added. Adding more than 4% Slo-Jo® of Part B may reduce the ultimate physical properties of the cured rubber.