BEACON™ 325

Grease

Product Description

BEACON™ 325 is a high performance grease specifically formulated for the lubrication of precision equipment operating at moderate and low temperatures. It is made with a synthetic base oil of extremely low viscosity and low volatility plus a lithium soap. BEACON 325 is characterised by good mechanical stability, a high degree of resistance to water and extremely high oxidation stability. As its base oil viscosity is low and the viscosity index of the fluid is high, the grease has excellent low temperature properties including low starting and running torque at very cold temperatures and good pumpability.

BEACON 325 provides excellent service in a wide variety of small bearings and small, lightly loaded gears that operate over a wide temperature range. Its long lubrication life and excellent oxidation stability well suit it for use as a bearing lubricant in sealed-for-life units in automotive, aircraft and industrial applications. The recommended application temperature range for continuous operation for BEACON 325 is -50º C to120º C.

Features and Benefits

BEACON 325 is a member of the Mobil brand of lubricating products recognized for their high quality and reliability, as well as performance capabilities. As with other Mobil greases, this product is manufactured to the strictest quality standards. A key feature of BEACON 325 is its use of a synthetic fluid to provide optimum performance for low temperature precision applications. BEACON 325 offers the following quality features:

Special synthetic base oil provides excellent low-torque and low temperature properties
Excellent oxidation stability for extended grease life needed for filled for life applications
Very good water resistance ensures proper lubrication even in the presence of incidental water contamination
Low volatility base oil permits operation at moderate to high temperature without fluid evaporation

Applications

Application notes: BEACON 325 is formulated with an organic ester synthetic oil. This synthetic oil may cause a softening or swelling of certain plastics, elastomers, paints, or varnishes. How serious the softening or swelling tendency may be depends also on the temperature and the period of contact. Contact your local Mobil representative for further information on materials compatibility.

BEACON 325 provides excellent service in a wide variety of small bearings and lightly loaded gears that operate over a wide temperature range, including such applications as:

Naval, marine, and aircraft instruments and control mechanisms
Geared limit switches in Limitorque valve actuators
Commercial and military electronic equipment
Sealed for life motors, generators, and similar equipment in automotive, aviation and industrial applications

Specifications and Approvals

Beacon 325 meets or exceeds the requirements of:
DIN 51825: (2004-06)	KE2G-50

Typical Properties

Beacon 325
NLGI Grade	2
Thickener Type	Lithium
Color, Visual	Tan
Penetration, Worked, 25º C, ASTM D 217	285
Dropping Point, ºC, ASTM D 2265	180
Viscosity of Oil, ASTM D 445 cSt @ 40º C	12
Apparent Viscosity, ASTM D 1092
@ 20sec-1 and -40º C, Poise	7,000
@ 50sec-1 and -40º C, Poise	3,500
Oil Separation, FTMS 791B321.3, 30 hrs @ 100º C, mass %	4
Corrosion Prevention, ASTM D 1743	Pass

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

The Mobil logotype, the Pegasus design are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.

9-2012

Exxon Mobil Corporation
3225 Gallows Road
Fairfax, VA 22037

1-800-ASK MOBIL (275-6624)

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit exxonmobil.com
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.