Physical effects such as surface tension, elasticity, viscosity, and mass transfer determine the extensional flow and can be quantified using
model-fitting analysis. In this way, the company says, insights can be gained into such processes as fluid-filling behavior, the hardening of adhesives, or the spray behavior and misting of printing inks and wall paints: "The measuring principle is ideally suited for viscoelastic samples [that] form cylindrical filaments on extension, such as cosmetic emulsions, hair colors, printer inks, food products, or certain adhesives." www.thermofisher.com.