Viscometers
BYK-Gardner · byko-visc DS — in-can paint viscosity
Krebs Stormer viscometer
A digital Stormer viscometer that automatically calculates in-can paint viscosity in Krebs units, grams, or centipoise, simulating real stirring conditions at a constant 200 rpm directly inside standard paint cans.
BYK-Gardner · byko-visc RT — rotational viscometer
Rotational viscometer
The most versatile model in the byko-visc family. A rotating spindle is immersed in the sample; the torque required to turn it is proportional to viscosity, measured by a precision spring mechanism across a wide measurement range.
BYK-Gardner · byko-visc CP — absolute viscosity
Cone & plate viscometer
Determines absolute viscosity from sample volumes under 2 mL using fixed cone geometries and constant shear rates, ideal for non-Newtonian fluids and high-shear processes such as spraying or rolling.
BYK-Gardner · Gardner-Holdt — tubes A5 through Z10
Bubble viscometers
A proven method for the rapid determination of kinematic viscosity in resins, varnishes, and oils. The time for an air bubble to rise is directly proportional to viscosity. Sealed glass tubes with a 15-year shelf life and no orifices susceptible to clogging.
BYK-Gardner · Flow cups
Ford · DIN · Zahn — dip, flow cups
Simple, robust instruments for the rapid determination of efflux time. Available in certified versions with full NIST or PTB traceability, covering a wide viscosity range for low- to semi-viscous liquids. Ideal for workshop or inline production control.
BYK-Gardner · Stands, standards & accessory kits
Accessories
Stands, calibration standards, and accessory kits that complete every measurement setup — from cup leveling and temperature control to spindle storage and tube replacement.
Why choose our instruments
Metrological traceability
Certified versions with full traceability to NIST (USA) and PTB (Germany). Compliant with ISO 17025 requirements for accredited laboratories.
Complete range
From the simplest Zahn dip cups to high-precision cone-and-plate instruments — a solution for every level of measurement requirement.
Built for the field
Robust construction for workshop and laboratory use. Materials include solid-bar aluminum, stainless steel, and polyamide depending on the application.
Industries We Serve
Viscosity directly affects product quality, process efficiency and consistency across a wide range of industries. Our viscometers deliver accurate, repeatable measurements for quality control, formulation and production monitoring. From low-viscosity solvents to thick pastes and coatings, they help ensure every batch meets the required specifications and industry standards.
Explore BYK-Gardner Viscometers
Control application, levelling, sag resistance and batch consistency from low-shear storage to high-shear spraying.
Measure sauces, dressings, syrups and beverages to maintain texture, pourability and processing consistency.
Verify the flow and consistency of syrups, suspensions, gels and ointments during formulation and quality control.
Characterize creams, lotions, shampoos and gels for spreadability, stability and consistent consumer experience.
Monitor solvents, resins, dispersions and process fluids across flow-cup and rotational viscosity ranges.
Check fluid consistency and viscosity grade for reliable lubrication, handling and process performance.
Control mixing, application, bead formation and batch uniformity in liquid adhesives and high-viscosity pastes.
Talk to a technical expert
Our experts will help you select the right viscometer for your materials, application and testing requirements.