Poly 15 Part X Accelerator accelerates the pour times and demold times of Poly 15-Series & EasyFlo Series products. A few drops added to a one-pound mix speeds the cure significantly. Experiment to determine how much Part X is needed for your application. Do not exceed 1% of the total mixed weight as final physical properties may be affected. NOTES: When accelerator is added, exotherm (the heat of the reaction) and thus shrinkage on cooling is also increased. Add Part X to Part B prior to mixing with Part A. For additional information, read the Technical Bulletin associated with your product.