Drop Shape Analyzer
DSA25B – The easy-to-use manual instrument for changing contact angle tasks
The Basic configuration of the DSA25 Drop Shape Analyzer is suitable for accurate wetting measurements with a standard test liquid or sample liquid. The instrument is ideal for quick measurements of the static contact angle. It is mainly used for tasks that don’t require a high degree of standardization, i.e. wetting of different formulations of a coating liquid on different samples.
Applications
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Checking wettability of plastics, glass, ceramics, wood, paper, or metal
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Testing the effectiveness of hydrophobic coatings and other coatings
Measuring methods
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Contact angle of a drop on a solid surface
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Contact angle using a gas bubble beneath a solid surface in a liquid
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Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal
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Contact angle at an immersed, cylindrical sample, usually a fiber
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Measuring the recently receded contact angle to characterize dewetting behavior
Measuring results
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Static contact angle
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Contact angle using a bubble in a liquid
Exclusive Academia Conditions
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Take Advantage of Our Pre-Test Service
Play it safe with your measurements. Our application specialists will analyze your material samples in advance in the lab and determine the optimal instrument configuration for your measurement task.
Manual precision dosing with quick changes of liquids
Thanks to the fine adjustment of the manual dosing unit of the DSA25B, the drop is dispensed in an accurately controlled manner. The size of the drop is therefore highly reproducible and provides a good comparison of results. The quickly replaceable syringe allows a rapid changeover between different liquids, thus enabling a high sample throughput.
High-quality optics for reliable contour analysis
The Basic version of the DSA25 is equipped with the same high-quality zoom lens as the S and E models. This ensures that even small droplets are optimally displayed in the image. In combination with the intelligent image evaluation algorithm of the ADVANCE software, drop shape analysis with the instrument delivers precise results.
Lightning-fast receding angle measurements and digital test ink results
Equip your Drop Shape Analyzer with a dosing unit for the Stood-up Drop® and exploit the full potential of the receding contact angle for quality assurance and materials research. For the first time, the receding angle result for water is available in a matter of seconds. It correlates exceptionally well with many manual test parameters, such as the cross hatch test for coating adhesion.
The ADVANCE software even automatically correlates the receding angle with test ink results for PE and PP and provides an additional result: the Digital Dyne® value. With this new result parameter, nothing stands in the way of replacing outdated test inks with just water — and with user-independent, scientific contact angle measurements.
YOUR INSTRUMENT'S BRAIN
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Intuitive software with a workflow-oriented user interface
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Swift and repeatable analyses thanks to measurement templates and powerful automation functions
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Superior algorithms for image analyses provide for precise results even with difficult images
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A wide range of evaluation methods makes ADVANCE a reliable scientific tool
Technical Services for your instrument
Learn how we support you from day one and help you make the best use of your instrument with the longest service life possible.
Set Up and Installation
Don’t lose time and let measuring be the first thing you do with your instrument.
Training
Start your analyses with solid know-how and refresh and deepen it during your instrument’s life cycle.
Maintenance and Repair
Expect your instrument to be a reliable long-term employee.
