The U.S. Green Building Council (USGBC), founded in 1993, is a non-profit trade organization that promotes sustainability in how buildings are designed, built and operated.  The USGBC is best known for the development of the Leadership in Energy and Environmental Design (LEED) rating system and Greenbuild, a green building conference that promotes the green building industry, including environmentally responsible materials, sustainable architecture techniques and public policy.

Hydro Safe’s® readily biodegradable, non-toxic hydraulic oils qualify towards LEED points under Materials and Resources: Rapidly Renewable Materials.

Return to Top of Page

Hydro Safe® ISO VG-68FR

Non-Toxic - Biodegradable - Environmentally Friendly - Antiwear - Hydraulic Oil

Factory Mutual Certified & Labeled as "Fire Resistant Fluid"

"Fire-resistant" as defined by the Factory Mutual Research Corp:
  1. Sprayed fluid that contacts an ignition source will not propagate flame
  2. That if the source of ignition is removed from a fluid spray, any flames will self extinguish

Article: "Fire Resistive Hydraulic Oils Without Sacrificing Performance"

Hydro Safe® ISO VG-68 FR is a vegetable based hydraulic fluid formulated to meet the demand for biodegradable hydraulic oils. It is designed to minimize environmental impact and have low environmental persistence. Hydro Safe® ISO VG-68 FR offers excellent performance in a wide array of hydraulic components, and can be used as a superior replacement for conventional petroleum oil. It exhibits excellent thermal and oxidative properties when compared to other vegetable-derived products. Hydro Safe® is formulated from canola (rapeseed) oil, and containing biodegradable, non-toxic chemical additives. Its high viscosity index (VI) allows outdoor operations in winter and summer without the need for fluid changes or equipment modifications. Hydro Safe® ISO VG-68 FR is factory mutual approved as a less-hazardous fluid.

Viscosity Index ASTM D-567, ASA Z11.45 is an empirical number indicating the rate of change in viscosity of an oil within a given temperature range. A low viscosity index signifies a relatively large change in viscosity with the temperature, while a high viscosity index shows a relatively small change in viscosity with temperature. Viscosity Index cannot be used to measure any other quality of an oil.

The fluid is totally biodegradable, and exceeds the government criteria of being "readily biodegradable." Readily biodegradable is defined as an attribute of products that have a natural ability to biodegrade quickly and completely. Once the fluid is leaked into the ground, it has the ability of substance to be digested or consumed by naturally occurring microorganisms present in water, air, and soil systems. Complete biodegradability is the conversion of a substance to carbon dioxide and water.

Typical Physical Properties 


Clear Light Amber Fluid

Viscosity, SUS @ 212 °F (100° C)


Viscosity, SUS@120 °F


Viscosity, SUS @ 104 °F (40° C)


Viscosity, SUS @ 100 °F (38° C)


Viscosity, SUS @ 32 °F (0° C)


Viscosity Index


Total Acid Number - mg KOH/gm


ASTM Flash Point, C.O.C., °F (°C)


ASTM Fire Point, C.O.C., °F (°C)


ASTM Pour Point, °F (°C)

-17 (-27°C)

Specific Gravity @ 60°F


Dielectric Strength Test - ASTM D877

38.9 KVAC

Corrosion Test - ASTM D-665A


Density (Pounds per Gallon)

7.63 lb/gal

Oxidation Test R.B.O.T. ASTM D2272

165 min.

Results ASTM D2882 Modified Pump Test


Vickers V-104-C

Pressure, PSI


Temperature, °F


Theoretical Output, GPM


Filter, Micron

10 Nominal

Capacity, Gal.






Duration, hrs.


Ring Loss, mg.


Vane Loss, mg.


Total Loss, mg.


Wear Rate mg/hr




No health or safety hazards exist when Hydro® Safe ISO VG-68 FR is stored, used and disposed of in accordance with instructions given on the Material Safety Data Sheet for this product. Over ninety percent (90%) of this product will biodegrade in 120 days after being exposed to the ground environment (bacteria) or biological treatment. The rest biodegrades over a longer period of time.


The information given here is considered to be correct and is offered for your consideration, investigation and verification. No warranties are expressed or implied since the use of Hydro Safe® products are beyond our control. Statements concerning the use of Hydro Safe products are not to be construed as recommending the infringement of any patent.

Export Statement

This commodity and its technology are subject to the export control laws and regulations of the United States Government. Buyer agrees that it shall not make any disposition, by way of export, diversion, transshipment, re-export or otherwise, except as expressly permitted under United States law.

Shipping Point: Carrollton Georgia
ISO-9001:2000 Certification

Content © 2009 Hydro Safe Oil Division, Inc.  •  Website designed and maintained by Addis Enterprises.