Mold Sealing Putty is used to seal graphite exothermic welding molds during the welding process. It prevents molten metal leakage and ensures a controlled, high-integrity weld. Flexible and easy to apply by hand, this non-hardening putty forms a secure seal that adapts to irregular mold surfaces and helps maintain safety and consistency in every exothermic weld. Suitable for use with all standard graphite molds across various conductor configurations.