Prototyping Resins will stick to silicone rubber during vulcanization. Our friends at Nicem have developed a liquid release agent for these resins, that is applied to the resin pattern before the mold is vulcanized simply by dipping the pattern for 2 or 3 seconds into the Resin Release liquid (see instructions). The dipping will result in a very thin coating on the pattern and evaporates rapidly. Provided in a 200 gram plastic bottle. Made in Italy.