A dispersion is a system. We measure it like one.
A high viscosity is good — until the product has to pour. A narrow size distribution is good — unless the application wanted a broad one. Flocculation is bad — except when it’s there by design. No single number decides on its own; it depends on the product, the process, and what the formulation is being asked to do. That is why every capability on this page lives under one roof: understanding a dispersion — its stability above all — takes more than one kind of measurement. We invested accordingly.
Stability & shelf-life
How a product separates, and how fast — measured directly instead of waited out. Real-time aging, elevated-temperature storage, and analytical centrifugation: separation measured under controlled, tunable acceleration — sedimentation, creaming, flocculation, and coalescence, across the full sample. Applied correctly, it is the fastest defensible route to a shelf-life estimate and a stability ranking — and knowing how much acceleration a given product tolerates is part of the expertise.
Zeta potential belongs here too, as an indirect indicator — useful for tracking how a formulation change shifts particle charge. A zeta potential alone is not a stability verdict: two systems with identical values can behave completely differently. It informs the interpretation; it does not replace the measurement.
Particle size
Full distributions by four independent techniques — dynamic light scattering for the nanoscale, laser diffraction for broader distributions, single-particle optical counting for sizing particles individually, and analytical centrifugation, for emulsions and suspensions alike, with the highest resolution for broad and multimodal distributions. The technique is matched to the sample — concentration, matrix, and size range — and set up correctly, a good measurement is a property of the sample, not of the instrument it ran on.
Rheology & flow
Flow curves and viscosity profiles across shear rates, yield point determination, and rheological oscillatory testing — amplitude and frequency sweeps — for full viscoelastic characterization of dispersions and formulated products.
For dispersions, rheology is the other half of the stability story: yield stress and low-shear viscosity decide whether particles stay suspended, and viscoelastic structure explains texture, pumping, spraying, and application behavior.
Particle counting
Single-particle optical counting in liquids — each particle detected, counted, and sized individually, from 20 nm to 20 µm, at concentrations from a thousand to a billion particles per milliliter. Ensemble methods need high particle concentrations before they register anything at all — orders of magnitude beyond trace levels. For applications below that threshold — clean fluids, dilute suspensions, rare contaminants — single-particle counting is not one technique among several: it is the one that still works. Counting particles one at a time is how ‘nothing detected’ becomes an actual number — and how the odd bad batch finally gets explained.
Foam & interfacial behavior
Foam characterized as numbers, not impressions — foamability, foam stability, drainage kinetics, and bubble size distributions. Foam stability also depends on how the foam was made: the same formulation, foamed two different ways, can give two different lifetimes. So generation is controlled, repeatable, and done by more than one method — at the temperature your application actually runs at, because temperature changes the answer.
An equilibrium surface tension is one number; an interface is a process. Surfactants arrive and leave on their own timescales, and those kinetics decide how emulsions and foams form, hold, and fail. The toolkit measures the process, not just the snapshot: dynamic surface and interfacial tension, adsorption and desorption kinetics, interfacial rheology, and critical micelle concentration.
The experience to put it together
The capability that ties the rest together: listening first. Which measurements answer your question, in what order, and what they mean together — that is judgment, built over thirty years across the sectors these problems come from.
Every engagement ends the same way: a report with the data and the raw files your team expects — and, first, at the top, a plain-language interpretation: what the results mean, why, and the recommended next step. Turnaround quoted per project; rush available.