New inhibition technology for (Pt)-cured silicones (LSR and HCR) to optimise the processing window without changing material properties - Supresil®

Platinum (Pt)-cured silicones are gaining in popularity, emphasising addition curing over traditional peroxide methods. They ensure purity and efficacy, resulting in stronger and more aesthetically pleasing products. However, when curing is initiated by mixing parts A and B, the pot life is limited (minutes to hours) depending on the type of silicone and temperature. This creates practical and technological constraints such as short processing time, manufacturing waste, difficult reproducibility, and inflexible manufacturing processes. Our patented formulation extends pot life through reversible inhibition of crosslinking. Unlike systems with state of the art inhibitors our inhibitors evaporate readily and completely once processing begins, even at temperatures below 80 °C, allowing normal cross-linking at mild temperatures for rapid and complete curing while maintaining the original material properties. The benefits of using Supresil® are reduced production costs, ensuring constant production quality and enabling 3D printing.