Measurement: .020 inch thick, 5 inches squares Stiff cloudy polypropylene for detailed vacuum forming Does not stick to acrylics for easy separation Material is safe; no latex or BPA Quantity: 25 sheets per pack The Keystone Proform Coping Material is recognized by dental professionals for its exceptional handling characteristics and reliable performance in the creation of provisional restorations, securing its place as the best Proform Coping Material. This thermoplastic material is meticulously formulated from cloudy, stiff polypropylene, which is essential for achieving good definition and a precise fit when vacuum-formed over a model or die.A key feature of this material is that it will not adhere to acrylics, providing a clean separation and simplifying the fabrication and finishing process for temporary appliances. The material sheets come in the essential .020 inch ( 0.50 mm) thickness, which is a standard gauge for coping applications, and are available in 5 inches x 5 inches (127mm x 127 mm) square sheets, which promote an improved vacuum seal during forming. This specific package includes a total quantity of 25 sheets, providing a convenient and manageable supply for daily laboratory operations.Furthermore, the material is formulated to be safe, as it does not contain latex, BPA, gluten, or monomer. If you are searching for the best polypropylene vacuum forming sheets then their consistent thickness, excellent memory for detailed impressions, and non-adherence to acrylics ensures high-quality temporary restorations with efficient workflow, is best for you. This product is strictly intended for use by professional dental laboratory technicians and licensed dental practitioners in clinical and laboratory settings utilizing vacuum-forming equipment to create temporary crown and bridge appliances.