Hydraulic & control line fluid - readily biodegradable, saturated synthetic esters. Shell PANOLIN S4 Hydraulic OS EAL has a zinc-free additive technology, blended with high-performance fully synthetic saturated esters which provides an excellent blend of lubrication performance and environmental acceptability. Readily biodegradable with a low ecotoxicity, particularly suited for subsea, offshore, and marine applications where compliance is required including US waters.
Performance & benefits
Lower Environmental ImpactRecommended for use in environmentally sensitive areas: An ‘environmentally acceptable lubricant’ as defined by the USA EPA 2013 Vessel General Permit and offers reduced impact of leak or accidental spillage into the environment when used in marine environments compared to conventional mineral oils. Readily biodegradable - biodegraded by over 60% after 28 days in the OECD 301 B carbon dioxide evolution test. Low Ecotoxicity - Classified as ‘not harmful’ to bacteria, algae, freshwater and marine invertebrates, and fish when tested as water-accommodated fractions (WAFs) according to OECD and EPA test guidelines.
Underwater applicationsShell PANOLIN S4 Hydraulic OS EAL fully complies to the low ecotox profile required by the OSPAR commission (Environmental Category Yellow) in order to protect the marine environment and contains no substitutable components according to the Cefas classification procedure, so can be used in offshore and underwater applications.
Designed to protect even in cold climatesShell PANOLIN S4 Hydraulic OS EAL has good cold flow behaviour which enables a safe start even in cold conditions, thereby reducing the risk of metal-on-metal wear. In addition to protecting the machine over a wide temperature operating range, shear-stable, high viscosity index fluids enable increased hydraulic efficiency.
Maintaining system efficiencyHigh VI provides performance across a wide temperature operating window
Meets requirement of United States Environmental Protection Agency’s (EPA) 2013 vessel general permit (VGP)
It is strongly recommended that an oil sample is taken from the system following changeover and analysed via the Shell Rapid Lubricants Analysis service to confirm the new fluid charge is fit for use
Fluid Compatibility Shell PANOLIN Fluids are miscible with mineral oils. However, in order to ensure that the environmental properties and performance of Shell PANOLIN Fluids are maintained, the system should be drained and flushed thoroughly when changing fluids
Standards & approvals
Biodegradable OECD 301B >60%
OECD 301B biodegradability above 60 %
A test result rather than a norm: OECD 301B measures the carbon dioxide evolved over 28 days. Above 60 % counts as "readily biodegradable", the threshold the environmental labels require.
Also listed
Fluid Compatibility
Typical characteristics
Property
Typical value
Method
Kinematic viscosity @40°Cmm2/s
16.4
ASTM D445
Pour point°C
-50
ASTM D97
Flash point°C
220
ASTM D92
Densitykg/m3
921
ASTM D4052
Complete documentation
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