UltraLube professional-grade, biobased greases have a naturally higher viscosity index than petroleum-based greases, so they're less likely to "thin down" at higher temperatures, resulting in less friction, heat and wear. Contain no VOCs and readily mix with petroleum-based greases. Non-flammable, with extremely high flash points. Non-toxic, biodegradable formulations are recommended for environmentally sensitive areas near waterways. Most UltraLube greases are USDA BioPreferred registered and listed. Get help selecting the proper grease for your application.