Welcome to the Next STEP in Dispersion and Adhesion Analysis®

LUM (pronounced loom as in illuminate) makes instruments to characterize dispersions and measure adhesion. If any of these key words fall within your interest then please contact us to see for yourself how we cna help you achieve your goals: emulsion stability, suspension stability, emulsion particle size, suspension particle size, predict emulsion shelf life, predict suspension shelf life, flocculation, aggregation, coalescence, syneresis, dewatering, sediment compressibility, and other dispersion characteristics for research and development, quality control, and product optimization; adhesion and cohesin of adhesives, sealants, paints, coatings, tensile strength, pull of force, and fatigue testing.

In addition we provide analytical services and technical consultations.

Whether you are just beginning to work with emulsions and suspensions, or are a seasoned veteran; belong to a small company, or a part of a large international conglomerate:

if you want to measure emulsion stability, dispersion stability, particle sizing, or adhesion cohesion properties directly and accurately we can help

Dispersions are complex systems

Regardless of what kind of emulsion or suspension you have, all dispersions are subject, in varying degrees, to gravity – and diffusion – driven processes that may lead to instability of your emulsion or suspension.

emulsion and suspension stability and instability diagram

While all well formulated emulsions and suspensions are stable initially, they are subject to the following emulsion and suspension instability processes. Center image: initial emulsion or suspension. Outer images are aged dispersions, clockwise from upper left: creaming emulsion | settling suspension, sedimentation | coagulation, flocculation, aggregation, suspension, emulsion | Ostwald ripening emulsion | coalescence, phase separation, oiling emulsion | phase inversion emulsion

Because the processes are ubiquitous, the initial properties of your product will change over time, affecting its quality and performance.

It is therefore crucial to be able to easily, accurately, quickly measure, and quantify these stability or instability phenomena.

You need tools, that in addition to giving you speedy and precise results, allow you to characterize and understand your emulsion and/or suspension. Afterall, you want to do more than just numbers. You want answers and solutions so you to optimize your emulsion or suspension, and prevent, minimize, eliminate product performance and quality issues before they occur.

LUM provides you with these tools. With the LUMiSeries of instruments you can analyze, quantify, understand, and predict any or all stability-instability issues.

Measure particle size and particle size distributions for emulsions and suspensions. Measure particle and droplet size distributions in both aqueous, non-aqueous dispersions, dilute, or concentrated dispersions. Create your own hindrance function to gain additional insights as to how your emulsion or suspension behaves at high volume concentrations. Alternatively you can use the Richardson-Zaki hindrance function or any of the other published correlations for hindered settling. The choice is yours. Obtain the droplet creaming velocity distributions and the particle sedimentation velocities for emulsions and suspensions.

Easily measure emulsion stability and suspension stability directly under a wide range of temperatures and viscosities. There are no black-boxes or fancy algorithms involved. With the unique STEP-Technology ® what you see, is what you have. Direct, simple, yet powerful and accurate.

In addition to measuring dispersion stability, you can also quantify the cause of any emulsion or suspension instability. Whether the instability is caused by low particle surface charge densities, small zeta potentials, insufficient dispersant, ineffective emulsifiers, therefore resulting in particle aggregation, flocculation, droplet coalescence, or phase inversion, the instruments will let you discern the differences and understand the causes. It is the only technology in the world allowing you to do this.

Why not reduce the time and energy it takes to estimate the shelf-life of your emulsion or suspension? We let you predict the stability of your emulsion or suspension based product and calculate years of shelf-life in a matter of days or week.

Learn what kind of sediments your suspension is forming. Is it a hard-pack, dilatant sediment, difficult to resuspend? Or is it a weakly flocculated suspension resulting in a porous sediment, easily redispersed. Use sediment compressibility as an additional tool to understand to study flocculation and which polyelectrolytes and polymers work best for your specific goal and application.

Obtain dispersion fingerprints for your sample. Use them to detect even the smallest physico-chemical changes affecting your product. Compare batch to batch quickly and easily. See how well your particles and droplets are dispersed in your emulsion or suspension based product, optimize your emulsifiers and dispersants, investigate the effect of different homogenization pressure and temperatures on your final product, and much more.

Contact us

Hopefully this brief overview has given you some ideas and insights as to how you can benefit from the LUMiSeries. So go ahead and contact us today for more details and information. You will be glad you did.

Key words: Particle Size • Emulsions Stability • Suspension Stability • Shelf-life prediction • Particle size distribution • Accelerated stability testing • Sedimentation • Sedimentation velocity • Creaming • Creaming velocity •Coagulation • Flocculation • Coalescence • Sediment consolidation • Syneresis • solid liquid separation • oiling • homogenization • zeta potential • surface charge density • emulsifier • polyelectrolyte • polymer • dispersant • oil water separation • dilatant sediment