Castaldo® Super High Strength Silicone, is a medium hard silicone rubber that has extra tear resistance and tensile strength, making it ideal when working with molds that have greater design details that are hard.

Super High Strength Silicone comes packaged in a 5lb box and can also be used with Castaldo Econosil on the outside for additional stiffness.

Strip Dimensions:  18″L x 2-7/8″W x 3/8″H