Welcome to your trusted source for thermal conductivity instruments, thermal resistance meters, thermal testing services, applications, resources, and more.


Thermtest has been measuring thermal conductivity, thermal diffusivity, thermal resistance, and specific heat for more than a decade. With more than 1500 satisfied customers, our unique combination of advanced thermal conductivity testing equipment for the laboratory, portable thermal conductivity meters for the field, and thermal conductivity testing laboratory accessories enables us to provide ideal solutions to fit any material thermal testing application and budget. Our proud commitment to being a leader in thermal conductivity has fueled our success through rigorous development and key partnerships, creating a lineup of industry-leading testing solutions for the laboratory, field, and production-line.

Thermal Conductivity [W/(m.K)] 0.0010. TLS HFM THW Hot Disk TPS -60 to 1000°C-20 to 70°C-40 to 100°C-50 to 400°C

Full-Services Thermal Testing Laboratory

Thermtest maintains a full-service thermal testing laboratory that services industrial, academic, environmental, government labs, and commercial clients in North America and international markets. We offer world class thermal testing services. Thermtest continues to upgrade thermal laboratory equipment to meet the testing needs of our customers. We are especially proud to be able to offer multiple instruments and thermal testing methods for measuring thermal properties, which are dependent on your sample type, testing temperature range, and sample dimensions. Thermtest is confident we have the right thermal conductivity measurement system for your thermal testing needs.

Demonstration Corner

Find a variety of recorded, live and one-on-one by request product demonstrations, webinars, and additional interesting technical videos. Request a free demonstration to see how a thermal conductivity measurement or thermal resistance test is completed.


Free access to has over 50 thermal conductivity applications viewable here or by click on a category below.

thermal conductivity tester for thermal resistance of Composites


Investigating the use of a thermal conductivity tester on composites to be utilized as building materials as well as using a thermal conductivity measurement device on phase change materials.

 thermal conductivity measurement system for Construction Materials


Using a thermal conductivity measurement system for testing construction material, for example, testing the thermal conductivity of concrete and insulation, to guarantee the most noteworthy of value and the safest of items are utilized for development.

thermal conductivity testing equipment for Electronics Applications


Finding new applications for progressing and anticipating thermal failures in present-day electronic and automotive gadgets using thermal conductivity testing equipment.

thermal conductivity measuring apparatus for Energy applications


How to use a thermal conductivity measuring apparatus for thermal testing of an assortment of techniques, including fuel cell diffusion media, to propel our entrance to eco-friendlier energy sources. 

thermal conductivity equipment for Geological Applications


Measuring thermal conductivity to investigate the Earth’s unlimited conceivable outcomes for thermal conductivity, thermal diffusivity, and specific heat. Using thermal conductivity equipment in geological applications helps us better understand our planet.

thermal conductivity measurement system for Insulation Applications


Exploring the quality and enhancing the effectiveness of household and industrial insulation materials using a thermal conductivity measurement system. 

Thermal Conductivity Nano Materials


Inquiring about advances in nano-refrigerants, – liquids, and – materials, to enhance materials, for example, the eleven-layer space suit.

thermal conductivity analysis Polymers Applications


Distinguishing polymers appropriate for a scope of utilization, while giving careful consideration to the anisotropic properties they may have while undergoing thermal conductivity analysis.

Posts from our blog

History.8 – The History of Armco Iron

If you’ve ever seen an old bridge, or car, that’s been sitting abandoned for several years, it was most likely reddish-brown and flaking in many places. Although it is one of the most common and useful materials manufactured in the world, steel has always...

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Thermal Conductivity of Ethylene Glycol-Water Mixtures

At Thermtest, the Transient Hot Wire Liquid Thermal Conductivity Meter (commonly known as the THW-L2) is used as a measurement system for determining the thermal conductivity of liquids and pastes. This system follows the ASTM D7896 standard, an international standard...

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Uncertainty of Calibration Calculator

Thermtest is happy to introduce the new Uncertainty of Calibration Calculator. The calculator determines the uncertainty of comparative thermal conductivity methods. Simply select the desired calibration material and the instrument, and the calculator will output their combined level of uncertainty, expressed as a percentage.

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