PVB & EVA Film Moisture

Maintaining Proper Moisture Control

Both PVB interlayer film and EVA interlayer film are ways of making laminated glass, used largely for the automotive and architectural industries. They are very sensitive to moisture and require great care in the processing.

Moisture is the most critical measurement in the production process of PVB & EVA film, but other measurements are also important. For example; PVB and EVA film thickness, this is important due to the fact that moisture level needs to be lower than a critical % and small differences in the film thickness could make all the difference to whether the product lies within specification or not.

Measure Moisture in Real Time


With the help of industry partners and 40 years of knowledge, MoistTech has developed the IR 3000 moisture sensor which is ideally suited to measure the moisture levels as well as PVB & EVA film thicknesses during the laminating process.

PVB producers have been very successful in reducing out-of-spec product by installing the MoistTech IR3000 NIR sensor.  The new sensor provides a continuous accurate measurement of PVB film over all moisture ranges as low as .0% to 1% with ppm accuracy. By physically passing the laminated product through the IR beam, the manufacturer can instantly monitor the moisture level, the film thickness, and the temperature.


Unsurpassed in performance, our sensors can accurately measure  moisture within tenths of a percent of most applications


MoistTech sensors withstand the test of time and are low to zero maintenance


Rely on MoistTech’s NIR moisture sensors to never drift or need re-calibration


A moisture measurement system is essential for the production process and in some cases will pay for itself in less than 30 days

Profits and Efficiency

Typical moisture accuracy is about +/-0.05%, coating accuracy varies from 0.1 to 0.01 micron depending on coating type. Typical analog range is 0-10% moisture and up to as much as 40%, subject to application. The outputs can be adjusted to optimize PLC or recording requirements.

Efficiency is a top of the line priority for manufacturers and the dryer can drain a lot of that. Measuring the moisture before and after the dryer allows the user to optimize the dryer settings to save time and money. A proper moisture control system will pay for itself with the energy savings from the dryer in less than 30 days. Efficiently controlling the dryer within the facility can drastically change the productivity levels.

MoistTech’s NIR Solution

MoistTech has studied moisture and its applications in manufacturing for over 40 years. That’s why we’re confident our moisture analyzers are a step above the rest. We’re constantly working to develop the latest, most advanced moisture testing technology—which is how the IR-3000 came about.

We’ve combined our decades of experience and knowledge with feedback from our industry partners to create a moisture sensor capable of taking instant, non-contact measurements of moisture, temperature, and other vital levels with the utmost accuracy. When it comes to moisture sensors, the IR-3000 is the most advanced system available.


Locate the point in the production process in which measuring moisture will be the most crucial and beneficial. Identify how you will use the moisture measurement data for improvements and if it will tie into your PLC.

Remember this could involve more than one installation point!


A closed loop process is achieved by incorporating a moisture measurement system into the manufacturing process. Developing a proactive solution to moisture control will avoid costly downfalls. 


MoistTech’s experts will assess your specific application with lab tests, calibrations and accuracy results to ensure our equipment will peform for you. All of our sensors are pre-calibrated prior to being shipped to create a plug-and-play operation for the end-user.


We offer service and support throughout the world for our moisture measurement sensors and would be happy to connect you with a rep in your area. Contact us today for more information!

Understand the Process

No matter what industry you’re in, moisture measuring sensors can help improve your products. At MoistTech Corp, we look to make your job easier by providing the best moisture sensing technology for all types of industries and production facilities.