Flat polished windows


MSD produces flat polished pieces with exceptional flatness and cleanliness with a diameter range of up to 300 mm, made from high-quality quartz, fused silica, optical glass or filter glass.

Our flat polished pieces are created using the twin polishing process, resulting in an extremely high level of flatness. In addition, we polish the surfaces of our pieces to a very high degree of cleanliness, ensuring they are free from surface defects and ready for use in a range of applications.

Flat polished pieces can typically be used as protection windows in various applications, for instance in laser systems. At MSD, we can produce flat polished plates in a variety of shapes, including round or rectangular plates, and other custom shapes to fit your unique needs. Whether you need a specific size or shape, we can work with you to create the perfect solution for your application.

If you are looking for a standardized plate, please enter your dimensions within our webshop to immediately receive your price or contact us today to learn more about our custom solutions. We look forward to working with you!


Diameter 2 to 300 mm

Thickness 0,2 to 50 mm

Single or double sided polished

Flatness up to λ / 10

CA 90%

S/D 20/10