- Sanctuary dental dam is manufactured from a latex casting technique. - This technique allows very uniform thickness, thus a consistent tear tolerance on the entire area of the dam. - We guarantee a 10 times expansion from its original punch hole. - This important feature is designed for easy usage during the fixing of clamps. - This feature is critical to ensure high tensile strength and high elongation at break (above 700% ). - With the Sanctech technology, the dental dams are powder-free, thus reducing the potential of latex allergy to some patients. **For further product information, please contact Chat Support**