If you've ever run a dyne solution check and a water contact angle measurement on the same surface and gotten two different answers, you're not alone, and neither reading is necessarily wrong. In this on-demand webinar, Kaitlin Carroll, Senior Materials Scientist at Brighton Science, breaks down why these two widely used surface measurement methods don't always agree, and why understanding that difference can be the most valuable data point you get.
Kaitlin walks through the science behind both methods and backs it up with real case studies, including a paper products manufacturer and a film manufacturer, each blindsided by adhesion failures despite passing their dyne solution checks, to show how relying on the wrong measurement method can let quality issues slip through undetected. Whether you're new to surface measurement or already have a dyne solution spec in place, this session will help you understand when each method works, where it falls short, and how to choose the right one for your process.
Key Takeaways:
- Surface energy drives adhesion. Wetting tension and water contact angle are two different indirect paths to estimating it, and they don't always agree.
- Dyne solutions can dissolve surface contaminants during measurement, masking the very problem they're meant to detect and creating false positives.
- Water contact angle proved consistently more sensitive across substrates and treatment levels, catching adhesion risks dyne solutions missed entirely — as shown in real case studies where products passed dyne checks but still failed in the field.
