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SEFAR PowerHeat NT

SEFAR PowerHeat NT fabric consists of PET monofilaments, metal wires and conductively coated fibers.

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SEFAR PowerHeat NT – heating fabric

Can be cut to almost any shape: the electrode matrix of several electrodes over the whole surface guarantees the current distribution and thus evenly heats the whole surface area.

Excellent temperature homogenity

The electric power supply bars are placed side-by-side, e.g. along one fabric edge

Compatible with injection/back-injection mold processes

Compatible with thermoforming processes

Quick heat-up due to its light weight

No hotspots

Energy efficient: high temperatures are attained with low electrical power

Up to 1000 W/m² heat transfer when exposed to air

Up to 10-25 kW/m² heat transfer possible when exposed to liquids and composites


High air permeability


Safety: no overheating, even when partially destructed

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–> Power supply bar

Infrared image of SEFAR PowerHeat NT fabric having randomly-cut shape.
The flexible power supply bar stays cold.

Power density vs. supply voltage diagram of several selected SEFAR PowerHeat NT fabrics

Other power/voltage configurations are also available.

SEFAR PowerHeat NT fabric

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–> Main power supply bar

Corresponding infrared view

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Infrared specimen showing heated strips

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A hole has been cut into the fabric; in spite of that, the adjacent area is still heated.
The area immediately alongside the power supply bar stays cool.

Example of how SEFAR PowerHeat NT can be cut

Your Benefits

SEFAR PowerHeat NT fabrics are tailored towards our customer needs.

Available as roll goods: the fabric can be cut to the customer’s desired shape

Dynamic heating adjustment by PWM (pulse width modulation) control

Fabric can be sewn or laminated

Available in several different power densities and voltages


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For general information concerning the Sefar Group feel free to contact the following address. Specific information on our screen printing or filtration solutions can be found by selecting Printing or Filtration in the navigation bar. Local information can be found by choosing your country in the drop-down list above the Sefar Logo.

To get into contact with you local Sefar representant choose your country in the following drop-down list.