Calumet Specialty Products Partners, L.P.
HYDROCAL - Naphthenic Base Oils - Brochure
HYDROCAL™ naphthenic base stocks are produced exclusively by Calumet using a multi-stage hydrotreating process operating at pressures above 2500 psi
HYDROCAL™ naphthenic base stocks are produced exclusively by Calumet using a multi-stage hydrotreating process operating at pressures above 2500 psi