Hot Melt Moisture

Near-Infrared Moisture Control

Hot melt adhesives are used for many applications in manufacturing. Whether you are using them to close corrugated fiberboard boxes, assemble parts, adhere toys, construct disposable diapers, affix parts and wires for electronic devices, coat label stock material or some other use, the amount and thickness of your hot melt adhesive can be critical to the finished product since hot melt thickness doesn’t change during solidifying like solvent-based adhesives.

Moisture regluation and thickness measurement become key components manufacturers look to control; MoistTech offers the most proven solution with their NIR technology IR3000C sensor.

There are many locations throughout manufacturing that our sensor can be used. These locations are often determined by the space availability and accessibility on the machinery as well as manufacturer’s control plan. After installation of the IR-3000C, a manufacturer can continuously monitor the process and control the thickness and moisture content either manually or automatically from readings of the IR-3000C online sensor.

Measure Today With Unparalleled Precision

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Product Quality Monitoring

The IR-3000 takes instant, non-contact readings of moisture (in % dry and % wet), allowing you to adjust moisture levels in your product either automatically or manually.  Other levels such as chemical composition, water based coatings, and temperature are also tested with accuracy. The production environment is removed from the measurement calculations by the software so things like small gaps, inert material, foreign objects, or conveyor belts and screws can be programmed to not interfere with the measurements being taken.

Typical moisture accuracy is about ±0.05%, coating thickness 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.

When you use the IR-3000C, the quality of your hot melts increases while production costs decrease. Both start-up and down times are reduced and product waste due to incorrect moisture levels is eliminated.


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

What is the Solution?

For the last 40 years, MoistTech has been working with sensors in some of the harshest environments. We have been measuring and recording our own research data in dozens of industries over thousands of components in order to create the best measuring sensor available. As a result of this, we have developed the IR-3000C near infrared (NIR) sensor.

Since the beginning, our goal has been to develop the latest in moisture testing technology, while making sure our instruments possess the capabilities you need. Our industry partners are constantly telling us what they need from their sensors; and it’s their feedback—along with our decades of research and experience—that has gone into the MoistTech IR-3000C, a moisture sensor ideally suited to test hot melts.


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

Moisture control on the production line creates large savings in a little amount of time. Measuring moisture during the production process vs. batch testing after, will create higher yield for the end product usage. Immediate ROI is seen with the installation of a moisture measurement system as the plant controllers can instantaneously notice the reduced waste, energy usage & overall increase in product quality.