Plastic mud

Waterproof and mold-resistant plastic putty Plastic putty is not clay in the literal sense, but rather a high-viscosity, two-component epoxy sealant designed for permanent bonding to porous and non-porous surfaces, such as ceramics, porcelain, metals, and plastics. Unlike traditional silicone or acrylic sealants, which remain flexible, plastic putty hardens into a solid polymer that is waterproof and mold-resistant. It not only fills gaps but also becomes an integral part of the surface.