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Calumet refineries have over 90 years of experience manufacturing Naphthenic base oils. Our extensive product line of Naphthenic based stocks are engineered to meet numerous requirements.
Calumet Specialty Products Partners, L.P. produces naphthenic base oils by using a multi-stage hydrotreating process operating at pressures above 2500 psi. This process offers the unique ability to produce naphthenic base stocks that meet currently established performance standards.
The HYDROCAL refining process selectively saturates large cyclical aromatic subgroups which result in the production of very highquality, stable base stocks. The HYDROCAL product line passes the IP 346 Standard and do not require labeling as carcinogenic under the OSHA Hazard Communication
Standard. Further quality control practices that Calumet implements on crude oil selection and subsequent refining processes assure consistent uniformity and product performance.
HYDROCAL™ is Ideal Across a Broad Range of Industrial Applications