Castaldo Plast-O-Wax jewelry injection wax produces highly elastic, resilient, and durable patterns with outstanding memory. Patterns will not break despite rough handling which means fewer broken patterns and increased productivity. Plast-O-Wax combines the excellent flow and filling properties of a wax with the stability of a plastic. Patterns bend, flex, and warp under pressure, but return to their original shape. Patterns made with Plast-O-Wax do not become brittle over time. They last and last in long-term storage. Inject it now - use it months later! Plast-O Wax is easy to handle and inject. Using wax tools and files is easy and unlike only plastic pattern materials, the wax can easily be removed with steam. Plast-O-Wax Jewelry Injection Wax releases easily from any type of mold to produce patterns with smooth shiny surfaces, crisp detail, and minimal shrinkage.