Plasteel Corporation is a Michigan-based manufacturer of foam and plastic products, operating since 1941. The company serves dental, craft, and specialty markets, drawing on more than eight decades of manufacturing experience to develop practical products. Its offerings include custom expanded polystyrene (EPS) molding and high-density EPS shapes, alongside professional dental supplies and craft materials.

For dental customers, Plasteel provides disposable X-ray holders and mouth props, including Stabes and EZ-Props. Its Smoothfoam product line is designed for creative projects and includes foam balls and spheres, eggs, bells, round ovals, and products for kids. These shapes offer a range of forms for craft use.

Through its Smoothfoam brand and dental product line, Plasteel brings together two areas of expertise: foam craft shapes and dental products. The company manufactures in Michigan and presents its products through its online store, where customers can explore the catalog and learn about its history and offerings.