Xiameter RTV-4133-M2 Base is a more inhibition-resistant, faster curing version of Silastic M- 2 RTV silicone rubber developed specifically for use when faster demold time is critical. At room temperature, Xiameter RTV- 4133-M2 base provides 1-1/2 hr of working time, yet is able to be demolded in four to five hours. - This two-part material is designed for detailed reproduction of surfaces and objects used in prototype design and production tooling, artistic and renovation applications and architectural and furniture components made with urethane foams and other resins.