Grease · Journal
Calcium–Magnesium Sulfonate Complex: Rheopectic Fluid That Mills into NLGI 2
Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is…
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Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield.
- Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield..
- Waynick’s Ca/Mg sulfonate complex work (NLGI Spokesman) discusses rheopectic behaviour — consistency that builds under shear. That can be a feature in some bearings and a pumpability problem in others. Do not treat RIODOT as a marketing adj
- Name the test method on any number that reaches a TDS.
- Patents and papers are prior art, not a product Lubechem sells.
- Written for Advanced CaSX plants and process chemists.
Rheopexy vs thixotropy in one paragraph
Rheopexy vs thixotropy in one paragraph. Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield.
Waynick’s Ca/Mg sulfonate complex work (NLGI Spokesman) discusses rheopectic behaviour — consistency that builds under shear. That can be a feature in some bearings and a pumpability problem in others. Do not treat RIODOT as a marketing adjective.
Literature/prior art for this note: NLGI Spokesman Q4 2025, J. Andrew Waynick — Ca/Mg sulfonate complex, Part 2: RIODOT. Read it as evidence under its own method, not as a formula you can paste onto an Indian CoA.
The reader is Advanced CaSX plants and process chemists. Search phrases around “calcium magnesium sulfonate complex grease” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Why milling energy is the product
Why milling energy is the product. Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield.
Waynick’s Ca/Mg sulfonate complex work (NLGI Spokesman) discusses rheopectic behaviour — consistency that builds under shear. That can be a feature in some bearings and a pumpability problem in others. Do not treat RIODOT as a marketing adjective.
The reader is Advanced CaSX plants and process chemists. Search phrases around “calcium magnesium sulfonate complex grease” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Yield economics vs conventional CaSX
Yield economics vs conventional CaSX. Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield.
The reader is Advanced CaSX plants and process chemists. Search phrases around “calcium magnesium sulfonate complex grease” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
What a consultant should trial before promising cost-down
What a consultant should trial before promising cost-down. Waynick’s NLGI papers (backed by eight US patents) describe Ca/Mg sulfonate complex greases at two rheology poles: an unmilled Newtonian fluid that becomes a stable NLGI 2 only after milling (extreme rheopexy), and a RIODOT type that is already grease without milling and at very high thickener yield.
The reader is Advanced CaSX plants and process chemists. Search phrases around “calcium magnesium sulfonate complex grease” should land on a decision: duty, method, purge, SKU sequence — then a link to the manufacturing page, not a second SOP.
Lubechem will not invent a client list or a certificate. If the next step is a trial, send the duty brief. If the next step is legal clearance of a filing, that sits with a patent attorney.
What this page is for
Most patented new grease chemistry in 50 years (NLGI’s words). Almost zero independent Indian explainers. Images are labelled conceptual illustrations. Patents and papers are cited so you can go read them.
What the paper is evidence for — and what it is not
| Paper says | Useful to a plant | Over-read |
|---|---|---|
| A mechanism or ranking under stated conditions | Adds a test or a caution to the brief | Not a drop-in Indian SKU |
| NLGI Spokesman Q4 2025, J. Andrew Waynick — Ca/Mg sulfonate complex, Part 2: RIODOT | Read the method section before the conclusion | Do not market the DOI on a drum |
| Limited speed / load / oil | Match your duty or discard | Do not scale a ball-on-disc to a kiln girth gear |
| Additive name or treat | A screening idea | Treat rates in papers are not commercial packages |
People-first note: this is dated editorial for decision-making. It is not a scaled rewrite of the manufacturing pages, and it is not legal or certification advice.
Questions plants actually ask
Is calcium magnesium sulfonate complex grease a drop-in for whatever we run today?
Almost never. Thickener family, base-oil viscosity, NLGI grade and additive response all have to be matched to the duty. A purge plan comes before a plant-wide switch. Compatibility charts are screens, not guarantees.
Can we put calcium magnesium sulfonate complex grease on the TDS because a patent or paper mentioned it?
No. Patents are prior art. Papers are evidence under stated conditions. A TDS line has to be backed by a method you actually ran, on oil you actually stock, at a treat you can buy twice.
Who owns the formula if Lubechem develops it?
Ownership is the contract. The practice is independent formulation with IP transfer as scoped — not a branded additive package you can never leave. Ask for the assignment language before the first kettle.
What should Advanced CaSX plants and process chemists send in the first brief?
Duty (load, speed, water, temperature, relube), the current TDS and fail mode, target specs (IS / ASTM / OEM), and whether the product is sold, used in-house, or exported. Photographs of the failed component help more than adjectives.
Literature and prior art
Citations below are orientation, not a freedom-to-operate opinion. Lubechem does not copy claimed compositions and does not treat a patent as a product endorsement.
- NLGI Spokesman Q4 2025, J. Andrew Waynick — Ca/Mg sulfonate complex, Part 2: RIODOT — cited as prior art or literature, not as a product Lubechem sells
- ASTM D217 cone penetration / NLGI grade — consistency, not chemistry
- ASTM D2265 dropping point — lab fluidity, not continuous service limit
- ASTM D1264 water washout — wet service screen, not a seawater proof
- DIN 51821 FE9 / ASTM D3336 — bearing life nearer to operating reality than drop point