ZENTEC Thermoplastics require less heating time than IMRT Reinforced Thermoplastics™ and have an established reputation of being highly conforming masks. In the 2.4 mm thickness, these masks provide a lighter feeling, which offers a more pleasant experience for anxious patients. In the 3.2 mm thickness, this material offers a similarly conforming mask with the added benefit of being CIVCO's most rigid continuous frame mask.