Convoluted foam, also normally called egg crate foam, is widely used in furniture upholstery, mattress and bedding. You can also find egg crate foam in packaging and sound insulation applications. It is an economical way of foam cushioning and protection.

Convoluted cutting works similar like skiving cutting which can cut one sheet into two half pieces. But sheet after convoluted cutting can be made with a ridged design that has peaks and valleys. During the operation of convoluted cutting, a long roller presses one flat foam sheets while a blade slices it. The pressure and special cutting blades from the rollers result in foam pattern with peaks and valleys. You could get two pieces of egg crate foam sheets just from one thick foam sheet.

Compared with flat foam sheet, the special structure of convoluted foam provides more airflow through foam and more supporting and cushioning. Convoluted foam comes in a light weight properties. With those features, convoluted foam can be popularly used in various industries and applications such as foam packaging liner, furniture mattress, acoustic application, custom die cut foam shapes and so on.