Viscometers are utilised by the paint and varnish industry to ensure every coating of varnish and paint maintains the correct flow, application quality, and film performance.
Viscometers are one of the most important quality control instruments in the paint and coatings sector because viscosity directly affects how paint behaves during manufacturing, storage, and brush application. When viscosity is not properly controlled, paints may sag, drip, form brush marks, or fail to deliver the expected coverage and finish. Ensuring consistent viscosity measurements using reliable viscometers guarantees every batch performs reliably and delivers a professional‑grade result that will please your customers.
Why Viscosity Matters in the Paint Industry?
Viscosity determines how paint flows, spreads, atomizes, and levels on a surface. It influences:
Film uniformity and thickness.
Gloss and colour consistency.
Spray pattern and droplet size.
Sedimentation and storage stability.
Paint viscosity also changes with temperature, shear rate, humidity, and formulation composition, making precise measurement with viscometers essential at every stage of production.
How Viscometers Support Paint Formulation?
Viscometers allow manufacturers to measure viscosity accurately during:
Raw material preparation.
Dispersion and grinding.
Viscosity adjustment with solvents or thickeners.
Tinting and colour matching.
Quality control.
Benefits of Using Viscometers in Paint Manufacturing
Batch‑to‑Batch Consistency
Paint manufacturers rely on viscometers to maintain uniform viscosity across production runs, preventing costly rework and customer complaints.
Improved Application Quality
Correct viscosity ensures smooth brushing, rolling, or spraying. Too fluid and paint drips; too thick and it leaves brush marks or uneven coverage.
Enhanced Stability & Shelf Life
Proper viscosity control helps prevent pigment settling, separation, or thickening during storage.
Compliance With Industry Standards
Standards such as ASTM D562 rely on viscometer measurements to verify paint consistency and performance.
Why Your Paint Business Needs a Viscometer?
Viscometers are more than a testing device — they are a critical tool for ensuring product quality, reducing waste, improving application performance, and strengthening your brand reputation. Whether you manufacture decorative paints, industrial coatings, automotive finishes, or specialty formulations – precise viscosity control is essential for delivering reliable, high‑performance products.
Our NuLine cone and plate viscometer is ideal for high‑shear applications like simulating brush or spray behaviour. Thanks to the high accuracy of our viscometer’s temperature plate and rotational cone – you can easily and expertly monitor the shear rate and viscosity of your paints across a range of temperatures and simulated conditions, using the on-screen display or the free included software for more in-depth analysis.
Did you know – the original cone and plate viscometer used to test paint was developed by ICI (Imperial Chemical Industries), who went on to become Akzo Nobel, owner of Dulux. Over time, ICI was broken up and the R&D division was purchased by REL (Research Equipment London Ltd), and after many years, the REL viscometer brand was purchased by ATAC, who rebranded and improved them to become the NuLine viscometer you see today. Paint viscometry is in our heritage.