This accelerator is used in all PlatSil silicone mold rubbers to speed the cure. Use of this product not only reduces the demold time, but also reduces working time. When added to the part B first, a ~1% addition (to the total B weight) decreases gel time to ~1/3 the normal. The addition of 2 parts decreases gel time to ~1/4 that of the normal for that PlatSil product. Experimentation required.