Our flexible kapton and silicone rubber heaters consist of the following product categories:

kapton flexible heaters, silicone rubber heaters, flexible heat tapes, explosion proof drum heaters for industry, including; silicone drum and pail heaters, tote tank/IBC heaters, laboratory heaters and heating tapes, heating cords, enclosure and control panel heaters, mantle heaters, hazardous area heaters and controls, hopper heaters and heating systems, gas cylinder heaters, heating cable and cloth heating jackets.

Kapton and silicone rubber heaters - Kapton® flexible heaters offer superior tensile strength and tear resistance, with precision heat distribution. They are ideal for extreme temperature environments, from -319°F to +392°F (-195°C to +200°C). Heaters are in stock standard at 0.0007” (0.2mm) thick and up to 20”x26” (.508m x .660m) areas. Watt density is 5W/in² (0.8W/cm²) standard, with units available to 50W/in² (7.8W/cm²). Kapton® is an organic polymer with very high dielectric capabilities, while providing superior resistance to most solvents, oils, even radiation. With low out gassing, these heaters are useful in vacuum environments. Etched foil heating elements, with 12” (305mm) long Kapton or Teflon® leads, are standard. Silicone leads, as well as custom lengths, cord and plug sets available.

Being transparent, Kapton® film also allows easy visual inspection on the internal structures. Pressure-sensitive adhesive (PSA) backing surface is not standard, but NPH will customize your Kapton® heaters with special adhesives or mounting holes, as the application requires. Mechanical fasteners such as hooks, grommets, spring-loaded latches, snaps and Velcro® patches are also available. Minimum radius flexibility 1/32” (0.88mm) standard with weight of 1 1/2oz/ft² (0.05g/cm²).

Kapton® Flexible Heaters

The particular application conditions of aerospace, medical, composite fabrication, optical equipment and computers often require flexible heating elements. NPH offers a wide assortment of in-stock and custom flexible heaters in Kapton® and silicone rubber materials to suit most any of these needs. Silicone Rubber heaters permit composite bonding and curing, as well as repair and fabrication operations. Equal length circuits and a cool tab are provided, while a fiberglass reinforced heater cover means long service life and increased durability. Standard watt density is 5W/in2 (0.8W/cm2). All standard heaters are UL Recognized. Many sizes in stock from 6” x 6” to 20” x 20” (152.4 mm x 152.4 mm to .508 m x .508 m). Kapton® flexible heaters offer superior tensile strength and tear resistance, with precision heat distribution. They are also ideal for applications with extreme temperature environments, -319°F to 392°F (-195°C to 200°C). Heaters in stock standard at 0.007” (0.2 mm) thick and up to 20” x 26” (.508 m x .660 m) area. Watt density is 5W/in2 (0.8W/cm2 ) standard.

Flexible heat tapes - The flexible design and high temperature capability of our Heating Tapes and Cords provides an ideal solution. Heating tapes and cords can be used on any surface or body requiring fast and efficient direct contact heating, up to temperatures of 1400°F (760°C).

Hazardous area or explosion proof drum heaters -  

      Power density of 2.5 Watts/in2 (.004 Watts/mm2)

      Patented grounded heating element

      Heating element is laminated between two layers of 23 mil and two layers of 25 mil.

      Fiberglass reinforced silicone rubber

      Nominal silicone rubber density of 26 oz/yd2 (881 grams/m2) per layer

      Attached adjustable dual set-point NEMA 7 temperature controller with power cord 6 feet (1.8m) long. One set-point is set at a high temperature limit and connected to a red indicator light.

      Blanket leads 6 feet (1.8m) long for NEMA7 controller; 1 foot (0.3M) without controller

      Leads from blanket to controller are enclosed in a liquid tight conduit

      400 degrees F (204°C) maximum exposure temperature on heating surface

      Moisture and chemical resistant

Silicone rubber drum and pail heaters - Provide practical, efficient means of freeze protection, viscosity control and maintenance of materials at elevated temperatures. A variety of standard sizes are combined with availability of configure-to-order designs to meet a variety of applications.

Tote Tank/IBC HeatersSpeed up the flow of products like honey, molasses, lube oil, biofuel, etc. stored in bulk containers. Safely heat: Does not contaminate or scorch your product. Warm bulk tote tank contents at a required temperature, Viscosity control, Freeze protection, Thermal mixing Temperature maintenance, Biofuel / Biodiesel.

Hoppers and Dip Tanks - NPH Hopper Surface Heating Systems maintain elevated temperatures above moisture and acid dew points using a proven combination of:

              Modular hopper surface heaters

               Flexible heating tapes for throats, poke tubes, and manways

               Temperature control and installation hardware

Laboratory Heating Tapes - Flexible, multi-purpose heater ideal for wrapping around graduated cylinders, beakers, distillers, flasks, and other laboratory equipment.

Heating Mantles - Laboratory Heating Mantles offer uniform heat distribution for round-bottom flasks. Whether the need is a self-standing mantle, a mantle to fit in a basket ring stand, or a full coverage zippered mantle, NPH Heating Mantles provides the solution.

Heat Tapes and Heating Cords - Includes heat and adjustable thermostat control

Useful for a wide range of applications:

      Process temperature control


      Supplemental heat

      Rapid heat-up and thermal response

Heat Trace Cable -  Heating cable is also referred to as heating tape and heat trace cable amongst the industry. Heating cable is used for a wide range of applications including pipe tracing, freeze protection, viscosity control, temperature process maintenance, roof and gutter, and much more. NPH also offers a true heating tape that is much more flexible and provides a more rapid thermal response.

Product Highlights:

      Self-regulating or constant-wattage heating cable

      Ideal for long runs on pipes and vessels

       Can be cut-to-length at job site

      Temperatures up to 500oF (260oC)

                  Meets NEC 427-23 and IEEE Std 515-2004

Cloth Heating Jackets – NPH Cloth Heating Jackets maximize heat coverage and efficiency by providing both heat and insulation around the entire object. Cloth jackets are ideal for a wide range of applications.

       Easy-to-install and remove

       Exceptional durability and product life

       Heat objects as small as 1/4" (6mm) diameter

       Flexible design makes tough to reach objects easier to install

       Suitable for a variety of environments including clean rooms

       Temperatures up to 1100°F (593°C)

Hazardous-Area Heaters and Controls - Hazardous environments have special considerations in order to keep it safe such as auto-ignition points. No matter what needs to be heated, we have a solution that meets the rigorous criteria of a hazardous area.

Cylinder Warmers and Heaters –

      Improves process control and reduces wasted gas that has condensed

Creates convection current

Increases pressure inside cylinder


      Gases known to benefit from this process are:

SF6, Propane, Nitrogen, Oxygen, BCl3, WF6, and HF

      Fits most gas cylinders

      Full surface coverage

      Insulation reduces heat loss

      Models for hazardous locations

      CSA, Class I Division 1 Groups  B, C and D

      ATEX II 2G EEx de IIB T6

Inquiries & Technical Support 1-877-674-9744


Our flexible kapton (polyimide) and silicone rubber heaters…

Terms and Conditions

kapton silicone flexible heaters, kapton heaters, silicone flexible heaters, kapton (polyimide) heaters,

silicone heating tapes, silicone drum heaters, explosion proof heaters, hazardous are heaters, Toronto, Canada

www.kapton-silicone-flexible-heaters.com is a subsidiary website that is owned and  operated by National Plastic Heater,

Sensor and Control Inc. © National Plastic Heater, Sensor & Control Inc. 2011. All Rights Reserved.  

The materials on this website are protected by copyright and other laws.