Rigid polypropylene is available as sheets with inner ridges similar to corrugated cardboard. They lend themselves to relatively easy manufacture of rigid panels in a variety of colours that can be printed on and are resistant to humidity.
The size of the ridges determines the strength of panels as needed for different packaging requirements. They are available with carbon content for electronic applications. They can also be utilized to fabricate parts with specific technical qualities for use as components in home appliances or they may be used as construction industry formworks.