Insultherm® Phenolic Foam is a rigid CFC and HCFC Free cellular foam insulation material with a substantially closed cell structure, whose polymer structure is made primarily from the poly-condensation of phenol, its homologues and/or derivatives with aldehydes and ketones. Insultherm® Phenolic Foam has various distinct properties that make it better than any other conventional insulation. Insultherm® Phenolic Foam has exceptionally low thermal conductivity.