Features Rebound™ 40 is hard and not very flexible. It is compatible with Rebound™ 25. For example, you can apply two coats of Rebound™ 25 and back it up with two coats of Rebound™ 40. Advantages Over Urethane Brush-On® Rubber: Rebound™ will not stick to most surfaces, so surface preparation is minimal Two liquids that mix easily together stands up better to production casting of resins and low temperature melt metal alloys has a long library life 4 thin layers are all that is necessary to make a flexible, strong and durable production mold for casting wax, gypsum, concrete or resins (urethane, polyester, etc.). And because Rebound™ is a platinum silicone, it will last for many years in your mold library. Applications include reproducing sculpture, architectural restoration, making candle molds, casting pewter, etc. Note: These products will not work with modeling clays containing sulfur under any circumstances.
