Skip to main content

Read our primer articles on Grease Guns and Oil Sight Glasses.

Replies sorted oldest to newest

I have been using a petro canada grease(og2)that has the calcium sulphonate thickener.We have had good success with it in our wet areas as it is capable of absorbing moderate levels of water.
We were also using it in our auto lubers in other areas of our plant,but we ran into problems with some lubers not emptying completely, and some not even starting at all.
We could visually see that grease was separateing in the luber.Not real sure why! Contacted petro can and they werent sure of the cause but said possibly a combination of high temps and vibration??

I have been using Premalube Xtreme in several applications in our plant. I first tried it in the bearings for a 50000 lb fly wheel that was driving a mechanical press. I had been using other greases but was not having great success. The other greases were bleeding out and leaving deposits on the bearing surface. The calcium sulponate did not. Also, I have used it very successfully in conveyors that are subject to high temperatures and water washout. Premalube comes in two types, one with moly and graphite and one without. After having tested several greases, including some specialty greases, I would recommend trying them out. It is a good product that lives up to its name.
Good greases Dave,

down side would be very tough high shear thickner so in high speed high reciprocating applications we would recommend a polyurea , heavy slow moving excellent greases,
This would not suit a cylidrical roller in a large elecic motor, polyurea better,

but would suit any heavily loaded slow moving aplications, high water, good corrosion resistance, (5 X life extension in mountain bike bearings, ISO 400 base oil)
The exon/witco version uses CaCO3 for the Passive EP and this works very well

Regards Rob S
PS also low toxicity,
That is an interesting question, and I've wondered this myself. I believe that spray off is attributed to the adhesive/cohesive additives and formulation and calcium sulfonate greases already have a high thickener content. More tackifiers in the grease would improve upon this(spayoff) but would reduce the amount of oil even further. IMO
"Up to what DN value does it work very good?"

Good Question, as the thickener is a tough shear resistant thickener the grease usually will work fine up to a dN value of 150,000, 150K to 200K monitor carefully and over 200K other thickeners should be used,

If the grease is used in a high temp area an autolube continuosly moving the grease through should considered as over temp, 250-350°C , will fuse the thickener if left static for long periods,


Rob S
Calcium sulfonate grease are best for high temperature application and are very popular in Steel plants.InIndia major steel plants are using these greases.These greases have the ability to absorb around 50% of water without changing the origianl properties mainly cosistancy.The water spray off property mainly depends on its base oil viscosity and tackyness additives used.Hence two sulpfonate grease could have different water spray off properties
Water Spray-off data for calcium sulfonate greases demonstrates the importance of understanding what a test does NOT mean. If you look at the WSO results alone for most Ca sulfonate greases, you would never use them in a wet application. However, Ca sulfonate greases deal with water differently than most soap-based greases. Al-complex is very adhesive and resists water. Ca sulfonate deals with water by adsorbing it and still providing good lubrication and corrosion protection. Rather than keep water away from the metal surfaces, Ca sulfonate greases just keeps the water busy. Apparently the water likes the polar end of the sulfonate molecule better than it likes the steel.

You will not find the most important test in an ASTM manual; the most important test is 'How does this lubricant work in your application?'
Originally posted by Lamont B Dumont:

You will not find the most important test in an ASTM manual; the most important test is 'How does this lubricant work in your application?'

Applicable across many, many things.

My sons first cardiologist looked at all the tests and asked us "How's he doing?".

Dr Kan considers that A VERY important parameter.

He's pushing 19 and had weeks to live at birth, so it seems like his care works.
Testing (medical & otherwise) provides valuable but limited information. Some folks obsess over test results to the point where they forget to bear in mind what the testing doesn't tell. The cliche version is 'Can't see the forest for the trees'.

These days I provide Quality support for a testing group, so testing helps me to afford living indoors & eating regularly. Still, I think it's important to think about what a result DOESN'T tell you when you are thinking about what it does mean. Tests are often attempts to simulate a complex process in a simplified way, whether on a smaller scale or in more of a hurry. Things get lost in translation when you do that. Just remember that testing is a snapshot, and the most important aspect may be just just beyond the viewfinder.
attend Reliable Plant 2024
Link copied to your clipboard.