3M™ Imperial™ Hookit™ Sheets, 740I, blended mineral construction and tough E weight backing makes for a fast-cutting, longer lasting abrasive. These versatile sheets may also be used on a variety of sanding surfaces, including clear coats, fibreglass, filler, metal, paint and plastic. They are excellent for stripping paint or sanding marine fairing compounds, delivering a uniform, consistent finish every time.