Aviation Oils

Castrol Brayco 599

Rust Preventative Concentrate

DESCRIPTION

Castrol Brayco™ 599 is a specially designed synthetic base, dark amber, rust preventative concentrate.

APPLICATIONS

Brayco 599 is designed for use as an additive for turbine engines and helicopter transmissions which use MIL-PRF23699 lubricating oil. Brayco 599 should be added to the oil sump immediately after an oil change when the equipment
is intended to be placed in storage, especially in locations where high humidity and salt spray are present. This fluid
should only be used for a limited time, not exceeding 25 hours. Consult the engine manufacturer’s manual to determine
specific engine model recommendations and/or limitations.

Castrol Brayco 599 is used in MIL-PRF-23699 synthetic turbine oils at 10-15% by volume addition for storage. It meets
the requirements of General Electric, Aircraft Engine Group Specification D50TF6-S1.

ADVANTAGES
TYPICAL CHARACTERISTICS
Viscosity 46 mm/s² at 40°C
Viscosity index 109
Oil type Ester
Product type Lubricating Oils
Applicable to these sectors Aerospace, Automotive Manufacture, Metals, Mining
APPROVAL & PERFORMANCE CLAIMS
ADDITIONAL INFORMATION

Conditions of Use
To receive full protection for extended equipment storage, Castrol recommends addition of Castrol Brayco 599 in
concentrations between 10 and 15 percent by volume. Lower concentrations, between 5 and 10 percent, may be
suitable for some component storage applications depending upon storage conditions and length of storage. Consult
the engine manufacturer’s maintenance manual or service bulletin to determine specific engine model dilution ratio
recommendations.

PACK SIZES AVAILABLE

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