Manosplint Wisconsin material offers the perfect balance of conformability and control during the fabrication process. The material is coated and will not adhere to itself unless the coating is removed. The perforated surface allows for air circulation without sacrificing rigidity. It is available with 1 percent surface perforation. Wisconsin PERF 1/8 inch x 12 inch x 18 inch 1 percent Perf Blue, 1 sheet.