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Coating Test Liquids: Record Purity and Handling
The liquid used in a wetting test is part of the test system. Contaminated water or reused dispensing equipment can undermine a comparison.
Updated · NANOLAB Knowledge
Practical approach
Use the specified liquid quality and clean, suitable equipment. Record preparation and handling where relevant to the method.
Water taken from a workshop bottle previously used for a cleaning solution is not an appropriate unexplained substitute for the test liquid.
Decision limits
Do not assume that clear appearance establishes purity. Resolve the liquid and equipment requirements before collecting reportable measurements.
Related guidance
- Ceramic Coating Test Reports: Handling an Outlier
- Reading an Adhesion Test Report for a Nano Coating
- Coating Test Panels: Use a Blank to Investigate Handling Contamination
- Coating Inspection Values: Do Not Round Before the Final Decision
Method reference: KRUSS: advancing contact angle. References describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.
Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.
Continue reading
Ceramic Coating Test Reports: Handling an Outlier
Investigate an unusual coating test result with a documented process instead of automatically deleting it or treating it as definitive.
Reading an Adhesion Test Report for a Nano Coating
Read nano coating adhesion reports by checking the substrate, preparation, test method and failure observation instead of relying on a pass label alone.
Coating Test Panels: Use a Blank to Investigate Handling Contamination
A handling blank can help investigate contamination introduced by preparation, packaging or transport. It serves a different purpose from a performance control.