SAFE LUBE - How It Works

Industrial Lubricants - About the Chemistry

Temperature Stability: SAFE LUBE products remain stable at high temperatures and do not exhibit hydrolytic instability which is the tendency to form "drop-out" precipitation.  Viscosity is stable at 100° F and 210° F just like petroleum oil products.  The RBOT test is run at 250° F and the products have past stability testing at these temperature levels.  The SL-Hydraulic Fluids and SL-Gear Lubes remain stable to flash point levels of >500° F.

Shear Resistance: The SL-Hydraulic Fluids and SL-Gear Lubes are shear resistant.  This is because they do NOT contain any "viscosity improvers" which are common to petroleum types.  Therefore, they contain no high molecular weight or long-chain polymer chemistries which can be susceptible to shear.  The SAFE LUBE fluids utilize straight-chain botanicals in the C16 - C18 carbon chain lengths.  This design is shear resistant and accommodates a truly biodegradable design.

Oxidative Stability: Oxidation stability is determined via the Rotary Bomb Oxidation Test (ASTM D2272).  The SL-Hydraulic Fluids and SL-Gear Lubes utilize the same exact additive package to achieve this oxidation stability and, therefore, yield positive results on this test.

Viscosity: The viscosity of the products are established via precise blending of different botanical additives which exhibit their own unique viscosities and allow viscosity control without utilization of "viscosity-improvers" which are common to petroleum designs.  The quality control testing on the botanical raw materials confirm proper blending of viscosity to the desired ISO specifications.  Viscosity is maintained throughout normal use due to absence of any shearing susceptibilities.

Barrier Film Formation vs. Extreme Pressure Agents: The SAFE LUBE fluids provide both boundary lubrication and extreme-pressure performance. The latter is achieved by the use of a sulfurized botanical additive.  This dual performance design promotes longevity of the SAFE LUBE fluids and does not tend to exhibit additive depletion like petroleum oil designs.

Performance Evaluation

The SAFE LUBE Hydraulic Fluids ISO 46 & 68 were sent to an independent laboratory for performance evaluation:

  ISO 46 ISO 68
Test: ASTM D2266/D4172 4-Ball Wear Test
mm @20 kg
mm @ 40 kg

Test: ASTM D2272 Rotating Bomb Oxidation
(Bath Temp = 150ºC)(Pass = <25.4 psi Drop)











Test results indicate that the SL-Hydraulic Fluids passed the standard lubricity performance requirements on the 4-Ball Wear Test. The SL-Hydraulic Fluid ISO 46 provided the most consistent lubricity performance at both test loads. RBOT results showed that both SL-Hydraulic Fluids passed performance requirements for oxidation-resistance.

It should be noted that since the SL-Gear Lubes utilize the reacted botanical additives which enhance load-carrying capability of the lubes, it is reasonable to assume that 4-ball results for the SL-Gear Lubes would likely be as good or better than the SL-Hydraulic Fluids. Likewise, it is reasonable to assume that the SL-Gear Lubes will exhibit the same good results on the RBOT test as the SL-Hydraulic Fluids because they both utilize the same oxidation-inhibitor at the same level for both classes of products.

Specialty Fluids - About the Chemistry

The SAFE LUBE Specialty Fluids are non-toxic, non-hazardous, readily biodegradable and made from renewable resources. The glycerin is highly refined to meet ASTM D7640 standards and is Generally Recognized As Safe (GRAS) by the FDA. The proprietary corrosion inhibitor package included in the SL-Specialty Fluids does not contain molybdates or phosphates. The state-of-the-art corrosion inhibitor package protects against pitting and corrosion of steel, copper, brass, solder, cast aluminum and cast iron. SL-Anti-freeze / Coolant lubricates pumps and valves, provides excellent scaling resistance, and is fully compatible with gaskets, seals, elastomers and other non-metal engine parts.

SL-Anti-freeze / Coolant has been tested to meet ASTM D7715 specifications for cooling systems of Heavy Duty Engines and includes ASTM D7714 as a pre-requisite. ASTM D7714 specifications covers the requirements for Automobile and Light-Duty Service. Testing includes:


Scaling Resistance of Engine Coolants on Hot Steel Surfaces

ASTM D1122

Relative Density

ASTM D1177

Freeze Point

ASTM D1120

Boiling Point

ASTM D1882

Auto Finish Effect

ASTM D1119

Ash Content

ASTM D1287


ASTM D5827


ASTM D1123

Water Mass Percent

ASTM D1121

Reserve Alkalinity

ASTM D1881

Foaming Tendencies

ASTM D2809

Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps with Engine Coolants

ASTM D4340

Corrosion of Cast Aluminum Alloys in Engine Coolants Under Heat-Rejecting Conditions

ASTM D1384

Corrosion Testing for Engine Coolants in Glassware

ASTM D2570

Simulated Service Corrosion Testing of Engine Coolants