Abstract: A two-stage system can provide a water-soluble releasing interface which permits a plurality of cycles of the mold between applications with such reaction-injection molding materials as reinforced urethane. The two-coat release system provides on the mold surface a base coat, including a polymer release agent with groups capable of bonding to the mold surface (e.g., a carboxy-terminated silicone) and a bonding or cross-linking agent (e.g., tetraisopropyltitanate), which reacts with and cross links the polymer and provides bonding with the mold surface and for soap-like materials, and a top coat, which is a water-soluble soap-like material (e.g., a water-soluble metallic salt of long-chain fatty acid). Such a system can be particularly adapted for use with urethane RIM materials.