This two-component room-temperature vulcanizing silicone putty is the classic choice for artists, hobbyists, and families who want a simple, mess-free way to create detailed molds. Unlike liquid silicone rubbers that require containment and careful pouring, this material is a kneadable clay-like compound that can be pressed directly onto almost any surface, making it exceptionally convenient for lifecasting, one-of-a-kind reproductions, and quick repair projects.
The putty consists of equal parts of base and catalyst, each a soft, non-sticky clay that is blended by hand until uniform in color. No measuring tools, mixing bowls, or degassing chambers are needed, making the entire process fast and portable. Working time is approximately three to five minutes at room temperature, during which the putty remains pliable and can be pressed around fingers, leaves, textured surfaces, or small objects to capture every micro-detail. Once blended, the material cures in about fifteen to twenty minutes, transforming into a strong yet flexible silicone mold that is ready for casting.
After curing, the mold exhibits a Shore A hardness of approximately 25, providing sufficient rigidity to hold casting materials like plaster, wax, polyurethane resin, or concrete without distortion, yet flexible enough to peel away cleanly from severe undercuts. The cured putty reproduces details down to a fingerprint level of fidelity, capturing pores, wood grain, and fabric textures exactly. Linear shrinkage is minimal, ensuring that casts remain dimensionally accurate.
This silicone putty is self-releasing against most materials, so a separate release agent is rarely needed. It is also non-toxic and odor-free once cured, making it safe for use in classrooms, studios, and homes. For those creating custom candle molds, jewelry patterns, fossil replicas, or even temporary assembly fixtures, this hand-moldable putty provides a reliable and reusable silicone solution that eliminates the complexity of conventional liquid molding systems.
