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RevestimentosIn the world of materials research, thin films serve many different purposes.  They can be protective films to preserve some other substrate or building material.  They can be conductive or insulating films that may be used for devices where directing electron transport is the goal.  They may be membranes designed to pass some species and bar others.  They may be designed to change characteristics under certain conditions.

Whether it is a corrosion preventing paint on the Eiffel Tower or Golden Gate Bridge, or an enzyme embedded monolayer on an electrode, films and coatings serve critical functions in science and industry.

Paints - Coatings

Paints - Coatings

The Reference 600+ is best for very small capacitance measurements.  Since barrier films tend to model as very small capacitors when EIS studies are done, this is generally the best choice.  

With some films a quartz crystal microbalance (QCM) is of use.  Gamry’s eQCM 10M allows simultaneous electrochemical (when combined with a potentiostat) and mass measurement, and is designed to accurately measure hard and soft materials. 

Our software contains many different techniques for studying coatings but researchers examining coatings will be focused almost exclusively on electrochemical impedance spectroscopy.  

Recommended setups

The Reference 600+ is by far the favorite among coatings researchers.  It's low-current capability make it the ideal instrument for measuring low-capacitance, high-impedance coatings.  The PTC1 paint test cell is ideally suited due to its low cost and ease of use.