What a Thermal Board Does

a pair of thermal boards from jacoA thermal board is a form of insulation that is useful in environments where extreme temperatures are present, like in a factory. The thermal board reduces the wear and tear of not only machine presses, but any other nearby machines or structures, from the effect that excess heat emitted. There are thermal boards available for operations over 2000℉.

Heat loss is an issue with machine presses. The more heat you lose, the longer it takes for the next mold setup. A quicker mold setup process saves money and increases the lifespan of the machine used.

What to Look for With a Thermal Board

Some important factors to keep in mind when determining which thermal board is right for you.

Heat Resistance

Knowing beforehand the specific temperature range is vital, because the wrong thermal board will not do the job you bought it for. It’s also important to note that many thermal boards are flammable under rare circumstances. And, organic thermal boards diminish over time, even if you do not see the board soften, melt, or any other visible damage. The organic boards deterioration comes in their lifetime effectiveness as their thermal stability decreases as time passes. Thermal stability is the ability to withstand heat, which inorganic thermal boards are better equipped for, over a longer period of time.


The size of a thermal board is defined by the sheet size, along with the thickness of the thermal board. In regard to the thickness of a thermal board, they can come in different thicknesses within a specific range. As long as the thermal board is within the range, it meets the necessary standards, so be aware of the range. For thermal boards that need to be precise, you can place custom orders to meet your needs.


What the thermal board is made of is very important, since each material has different properties and will have different prices. The material determines the conductivity of the thermal board, which is important because it defines how much heat will be lost.  Low conductivity levels indicate that the material is a good insulator because less heat is transferred.

Moisture Absorption

A thermal board with high moisture absorption levels brings the issue of steam to the table. High absorption levels reduce the effectiveness of the insulation with the potential for cracking. To achieve high temperatures with insulation that absorbs moisture, additional heat would be necessary to evaporate the moisture that was absorbed.

Compressive Strength

Compressive strength is the ability of the thermal board to hold off deforming when force is applied to it. If the thermal board is unable to hold its form, it will be less effective and need replaced, or become a safety hazard. You should not have to replace your thermal boards often.

Where to go for a Thermal Board?

When searching for a thermal board, go to a manufacturer that can handle the size of the order, has the experience, and has the technicians to install the thermal boards properly. A good insulator reduces the energy consumption for your facility, so an option that is more expensive now could pay off in the long run. Find the right balance with these factors in a way that works for your operation and values.

By Published On: September 23, 2021Categories: Plastic Molding Companies

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