Enhance your casting process with PlatSil® 71/73 Part R Retarder from Mouldlife US Inc. Designed for precise control, this retarder slows the cure of PlatSil® products for increased working time. Adding ~1% of Part R to the total mixed weight roughly doubles the pour time, while adding ~2% triples it. Customize your pour time by experimenting with proportions best suited for your project needs, but do not exceed 4% as the system may not cure at all. Important Note: Always add Part R to Part A prior to mixing for optimal results.