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Silicone oil viscosity measurement

Dynamic viscosity measurement for laboratory and industrial applications

Dynamic viscosity measurement is essential for evaluating how liquids and semi-solid materials resist flow under applied force. Accurate viscosity data supports product development, quality control and process optimisation across a wide range of industries.

Fungilab provides complete dynamic viscosity measurement solutions based on precision rotational viscometers, temperature control systems and specialized accessories designed to deliver reliable, repeatable and traceable laboratory results.

Whether measuring low-viscosity liquids or highly viscous materials, Fungilab offers instruments adapted to routine laboratory testing as well as demanding research applications.

Our products

Rotational Viscometer Series

Viscolead Series

Durable, classic design. Price range: low. Delivering the best in efficiency and reliability, our rotational viscometers Viscolead Series are designed for solid performance and consistent, user-friendly experience. Equipped for flexible functionality, the viscolead viscometer series are suitable for a wide range of testing environments- even in the toughest of laboratory conditions. Economical and cost- effective, the Viscolead series product range is an ideal choice for the budget conscious user requiring straightforward and dependable productivity. Models:

Viscolead ONE

Viscolead ADV

Accessories

LABORATORY DIVISION

Dynamic viscosity

Viscosity is part of the science of Rheology which quantifies the resistance materials give to changing shape.

Proper interpretation of viscosity data can reduce the rate of rejects while keeping production and formulation development costs to a minimum. Consistent product quality is ensured through proper viscosity measurements, either alone or in conjunction with compatible tests.

Dynamic viscosity testing can help with:

Material characterization or “finger-printing”
Standard testing methods to check for differences between batches
Indirect way of measuring quality
Product formulation
Quality control
Process control
Design, optimization and operation of process equipment

Material characterization or “finger-printing”

Standard testing methods to check for differences between batches

Indirect way of measuring quality

Product  formulation

Quality  control

Process  control

Design, optimization and operation of process equipment

Viscosity types

Dynamic viscosity

Poise
Centipoise (mPa*s)

Kinematic viscosity

Stokes
Centistokes (mm2/sec)

Apparent viscosity

Poise
Centipoise (mPa*s)

Newton’s Law

According to Newton’s law, the viscosity of a fluid is constant. As shear rate changes, shear stress changes in proportion such that viscosity is constant. Common fluids that exhibit such behavior are:

Unfortunately for us, not all fluids follow Newton’s law. In fact, most fluids do not. For this reason, fluids are classified into two categories:

Rotational Viscometer

The viscosity is calculated from the measured torque and rotational speed, as well as the dimensions of the measuring geometry.
A fluid’s resistance to flow is measured by the torque it exerts on the rotating shaft of the viscometer.

Absolute viscosity: the measuring geometry fulfills certain requirements (which is the case of coaxial spindles).‏

‏Relative viscosity: the dimensions of the measuring geometry are not well defined.

Advantage

Flexibility in:

Application

For Newtonian and non-Newtonian substances and temperatures different from room temperature.

Accurate silicone oil viscosity measurement solutions

Silicone oil viscosity measurement is essential for evaluating the performance, consistency and quality of silicone-based fluids used in industrial, cosmetic, pharmaceutical and laboratory applications.

Because silicone oils are available in a wide range of viscosities, precise measurement under controlled temperature conditions is necessary to ensure product compliance and consistent manufacturing quality.

Fungilab provides complete viscosity measurement solutions for silicone oils, including rotational viscometers, capillary viscometers, precision temperature control systems and certified reference materials.

Frequently asked questions about the Viscolead ADV

Why is silicone oil viscosity measurement important?

Viscosity determines the performance and consistency of silicone oils, making accurate measurement essential for quality control and product development.

Which viscometers are suitable for silicone oils?

Rotational viscometers are commonly used for silicone oil viscosity measurement, while capillary viscometers may also be used depending on the testing method and viscosity range.

Can low-viscosity silicone oils be measured accurately?

Yes. Fungilab's Low Viscosity Adapter (LCP) is specifically designed to improve measurement sensitivity for low-viscosity silicone fluids.

How are highly viscous silicone compounds measured?

The HELDAL Unit provides reliable viscosity measurements for highly viscous silicone materials and paste-like products.

Why is temperature control necessary?

Silicone oil viscosity changes with temperature, so precise thermal regulation is essential for obtaining accurate and repeatable results.

Which industries measure silicone oil viscosity?

Silicone oil viscosity testing is common in the cosmetic, pharmaceutical, chemical, electronics and industrial manufacturing sectors.

How can viscosity measurement systems be verified?

Routine verification using certified viscosity standard oils helps ensure accurate, repeatable and traceable laboratory measurements.

What are the benefits of accurate viscosity measurement?

Accurate viscosity measurements improve product consistency, manufacturing quality, laboratory reliability and formulation development.