Knowledge Base
Articles
Want to be confident your packaging stays un-smudged and instructions readable? Need a product with sharp detailing and clearly defined images? Then ink testing is a vital part of your QA process.
Ink can behave in vastly different ways depending on the surface it is applied to – that’s why there are a variety of different ink testing solutions out there. Wrap your head around some of the most popular testing methods in our handy guide.
There are a few ink tests that are sure to be helpful during your QA process.
Abrasion testing
Abrasion testing is a way to find out how your ink will fare against rubbing or scuffing. This can be really helpful in working out whether packaging print and instructions will remain intact during transit or throughout shelf life, for example. Wash and abrasion testing machines can put inks through their paces, giving you the data you need. Check out more information about abrasion testing for more insight into the principles.
Viscosity testing
Your ink viscosity can affect everything from how quickly it dries on the plate to how well it transfers to your surface. It can also have consequences when it comes to longevity. Viscosity testing lets you determine how your ink will behave and there are a few common methods for getting those results, including rotational viscosity testing and cups viscosity testing.
For more insight into how these tests work, be sure to check out our guide to viscosity testing.
When testing inks, as with many other samples, cleanliness is hugely important. It is difficult to judge surface tension or adhesion if the surface the ink is being tested on is not completely clear of dust or debris. Particle contamination may cause dotting in the ink application.
Ink analysis
You may also need to analyze ink for its suitability in certain settings. For example, if it is being used in the food and beverage industry or for any kind of medical packaging supplies or products.
Get some great insights into what is going on in the ink sector, in our evolution of inks and coatings guidebook
We have a huge range of testing options for inks and coatings, from viscometers to abrasion testing machines suitable for paper and cardboard. You can find out more about all of the ink testing machines available in our range on our inks and coatings test and inspect products.
If you’re not sure exactly what machines or equipment you need to fit your setup, we’ll be happy to help. Working across several industries and global locations, our experienced engineers have a wealth of knowledge that they’re happy to share. Whether you need to test ink viscosity for a new line of flexible packaging or you’re manufacturing medical equipment with printed aspects, we have the solution. Check out our guidebook for more exclusive insights!
The TQC Sheen Krebs Viscometer DV2300 is a digital rotational viscometer that measures paint and coating viscosity using the KREBS method - a paddle rotating at a constant 200 rpm in a fixed volume of sample. It converts torque into three simultaneous outputs: Krebs units (KU), centipoise (cP) and grams (g), with automatic unit conversion shown on the LCD display. Used by paints and coatings QC laboratories, paint manufacturers, automotive OEM coating suppliers, printing ink producers, adhesive manufacturers and cosmetics QC labs, the DV2300 supports ASTM D562 Krebs-unit specifications alongside direct viscosity readings for a wide range of Newtonian and near-Newtonian fluids.
Achieve reliable, repeatable abrasion and washability testing with our industry-leading scrub abrasion and washability tester — a robust, motor‑driven instrument designed for evaluating the durability and cleanability of coatings, paints, inks, and surface finishes.
The TQC Sheen Digital Rotothinner DV2700 is a rotational viscometer for measuring paint, coating, ink and other viscous liquid viscosity in poise or centipoise. Used by quality, R&D and production teams in coatings laboratories, automotive OEMs and their suppliers, printing ink producers, adhesive manufacturers and cosmetics and food QC labs, it delivers repeatable results in three modes - manual, max-hold and timed - across a combined range of 0.1 to 350 poise (10 to 35,000 cP) using three interchangeable plate and ball spindles.
The CurveX 4 Oven Logger Kit is the perfect package for industrial and powder coating oven temperature profiling. This convenient oven temperature logger makes it easy to ensure that you’re measuring the temperature of your powder coating oven accurately.
The TQC Sheen AFNOR Viscosity Cup (Laboratory) is a titanium anodized aluminum flow-time viscosity cup compliant with the French NF T030-014 standard - for paint, lacquer, ink and coatings QC. Available in multiple orifice sizes to cover the working viscosity range of standard paint, mixed lacquers and heavy coatings.
Run an ASTM D1200 flow-time viscosity check by hand-dipping directly into the paint or lacquer with the TQC Sheen FORD Dip/Immersion Viscosity Cup (VF2087). No. 4 cup with 4.1 mm orifice, covering 70-370 cSt at 25 degC. Dispatched within 2 days.
Take a flow-time viscosity reading by hand-dipping straight into the paint pot with the TQC Sheen Dip/Immersion Viscosity Cup, according or similar to DIN 53211. Titanium anodized aluminum or stainless steel, six orifice sizes, dispatched within 2 days.
Common methods include viscosity testing, colorimetry, and adhesion testing to ensure ink quality and performance.
Why film thickness is a critical quality control parameter Film thickness is one of the most important quality checks for any applied coating. Get it wrong in either direction and the coating fails to do its job. Too thin, and it will not provide the protection, appearance, or function the specification calls for. Too thick,…
Key terms Term Definition Wet film thickness (WFT) Coating thickness measured immediately after application, before drying or curing. Dry film thickness (DFT) Coating thickness measured after the coating has cured. Volume solids The percentage of a coating that remains on the surface after solvents evaporate. Magnetic induction DFT method for non-magnetic coatings on ferrous (steel,…
Coating Film Thickness Measurement Coating film thickness measurement is the process of determining how thick an applied coating is, either while it is still wet or once it has cured. It is a core quality control check in the paints and coatings industry, used to confirm a coating meets its specification for protection, appearance, and…
© 2026 Industrial Physics. All rights reserved. Privacy Policy Manage consent