At the request of Bell Helicopter, MARYN research labs investigates the compatibility of ThixO SYN MARYN Aviation Grease with Mobilgrease 28.
A lot of bearings for Bell models come prepacked with Mobilgrease 28 and as Bell Helicopter would like to encourage the changeover from Mobilgrease 28 to ThixO SYN MARYN Aviation Grease without having to unpack and clean every bearing in the helicopter, members of the Bell Helicopter engineering department inquired about why the greases were incompatible, and what might happen if the greases got mixed accidentally. How much risk exists when some Mobilgrease 28 remains in the bearing after purging it with ThixO SYN MARYN Aviation Grease?
Most grease incompatibility results from chemical interactions between either the thickener or the base oil of dissimilar greases. Though the thickener systems of these two greases are normally incompatible, the fact that they both contain PAO base oil may suggest some level of compatibility. The MARYN research team performed testing on Mobilgrease 28, ThixO SYN MARYN Aviation Grease, and a mixture of the two to determine the degree to which compatibility may be achieved.
The research team conducted EP testing, characteristic testing of the mixed greases, 60 stroke penetration before and after heating intervals to 120 C , severe heating over 65 hrs at 155 C and the 4-ball wear test. All testing results indicates that due to similar base oils, MAG2/ ThixO SYN MARYN Aviation Grease are compatible enough to purge bearings and not worry about degradation of the grease and consequent detrimental effects on the bearings.
To view the full report click here.
Aeriol greases will replace the existing offerings for aviation products. Details on which products will be replaced.
Aeriol, the new brand division for aviation lubricants comes available 1 Jan 2014
There was a time when selecting the right lubricant was easy. Now there are so many classifications, specifications, standards and operating conditions that it is often difficult to make sure you are meeting the lubrication requirements of your vehicle, or equipment as set out by the OEM. In many cases equipment is operating under severe service conditions and being maintained on a light duty service schedule, which time and again results in equipment failure and costly downtime.
MARYN International produces the PowerUp Lubricants brand - lubricant chemistry which is designed to blend with finished oils to address these very conditions and are perfectly suited for consumer use. In a time where environmental protection is crucial MARYN International also produces the Triumph | Environmentally Responsible and Marinus | Readily Biodegradable products. These high performance lubricants deliver protection in the most demanding applications and still maintain a commitment to wise resource management.