Formulated for models with very small features and intricate details. Excellent for creating vulcanized, RTV, or silicon molds. B9R-2-Black: 1 KG (2.2 lbs) bottle. A high-strength, fast-curing, resin for durable models and vulcanized mold-making. Flexible printing parameters suit a wide variety of applications. Slice thick for quick results or thin for fine details. May be primed and painted. An excellent resin for using printed parts to create vulcanized, RTV, or silicone molds.