The present paper describes spallation occurrence control from polyamide material by using phthalate esters. The polyamide material is widely used in polymer-ablation assisted type of low voltage circuit breakers. Our previous work had found the spallation occurrence from polyamide materials with water absorption. The spallation phenomena causes micro-sized polymer particles ejections from the polyamide surface by contacting arc plasmas or thermal plasmas, which could be useful to quench the arc plasma. The phthalate esters were confirmed to enhance the spallation phenomena without desorption although the water is inevitably desorbed from the polyamide even at room temperature.