The design of this plug is adaptable to various diameter sizes. When pushed or compressed, it significantly improves the seal when masking both threaded and unthreaded holes. Ensuring that the significant diameter exceeds the designated hole diameter by at least 15% is essential when choosing a size. This material also demonstrates exceptional resistance to chemicals. Silicone is capable of withstanding curing temperatures of up to 315°C/600°F and is engineered for long-lasting, repeat use.