Rigid Phenolic and Bio-based Foam Manufacturers. With 70 years of experience in foaming technology, Smithers-Oasis manufactures and markets specialty rigid phenolic and bio-based foams for a wide variety of applications including floral design, growing media, temperature control packaging, cast-alternative impression, industrial absorbents, sound insulation, architectural design, and insect farming, to name a few. Whatever your application, you can count on the consistent quality, uniformity, an