Silicone rubber heaters consist of many layers of silicone rubber sheets that are
bonded together through heat and high pressure. A fiberglass grid (which is visible
on the surface) reinforces the silicone rubber sheets. It is possible to make the
surface of the heaters smooth (i.e. make the grid invisible) by covering the fiberglass
with a thin layer of silicone. A uniformly spiraled resistance wire web that covers
the entire surface of the heater is embedded within the layers of silicone rubber.
This web could be designed such that holes and cut-outs are incorporated on the heater.
When silicone rubber heaters are made with a pressure sensitive adhesive backing,
a thin layer of aluminum is added prior to the adhesive layer, in order to improve
heat transfer and maintain its uniformity. This construction makes silicone rubber
heaters an ideal solution to the requirements of many low and medium temperature
applications, which do not conform to the standard shapes, sizes and dimensions of
band, strip, cartridge, tubular and coil heaters.
Silicone Rubber Heaters- Wire Wound
Using evenly spaced resistance wires laminated between sheets of silicone, wire wound
silicone rubber heater mats are ideal for prototyping or problem solving applications.
Manufactured to customer specifications they can be made in a limitless range of
shapes and sizes. High flexibility can be obtained using tough, robust silicone materials
which are finding ever increasing applications in the industry. Silicone’s wide temperature
range, tolerance of -60 to +230 °C and superb electrical properties give it a distinct
advantage over other forms of heating.
Silicone Rubber Heaters – Etched Foil
Computer designed chemically etched foil tracks are laminated between thin sheets
of silicone to give precise even heating. Suitable for both low and high volume production
etched foil heaters have rapid heat up properties with precise temperature control.
Heating solutions are available in a limitless range of etch foil heaters to customer
specification for multiple industries. Silicone’s wide temperature range, tolerance
of -60 to 230°C and superb electrical properties give it a distinct advantage over
other forms of heating.
Silicone rubber heaters are extremely versatile and operate efficiently in many environments. Some
distinct advantages of silicone rubber heaters are:
Oil and solvent resistance,
Outdoor exposure ,
Extremely thin profiles,
Conform to almost any shape.
All silicone rubber heaters are built to order, but rush delivery is available. In
most cases, NPH can deliver custom silicone rubber heaters within 48-96 hours. All
NPH flexible heaters are available with custom design modification. Custom designs
are welcome. Please contact us with your requirements.
Silicone Rubber 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).
Heating of Electronic Components- ATM's and Photocopiers
Heating of Aerospace Instrumentation-Satellites and Spacecraft
Semiconductor Wafer Processing
Autoclaves, Incubators and Sterilizers
Medical Imaging, Medical Diagnostic Instruments and Analyzers
Applications requiring a flexible shape or design
National Plastic Heater supplies silicone rubber heaters for many different applications
such as industrial catering, battery warming, environmental control or electronics
(particularly telecommunications), laboratory equipment and anti-condensation. The
uses for silicone rubber flexible heaters are infinite as they can suit any application
requiring surface heating up to 200°C. Their suitability for arduous conditions has
been proven in applications from polar expedition to space exploration.
THERMAL OR TEMPERATURE CONTROL FOR SILICONE RUBBER HEATERS:
NPH silicone rubber heaters can be supplied with factory fitted sensors and switches
to suit all types of instrumentation. Available from stock are PT100’s, J, K and
T type thermocouples, bi-metal thermostats and thermal fuses. We also fit customer
specified thermistors and other resistance temperature devices as well as extruded
pockets for customers to fit their own sensors. Separate mechanical or digital thermostats
can be supplied for process control.
How To Order Silicone Rubber Flexible Heaters
1)Specify length and width
2)Specify watts and Volts
3)Specify type of temperature control required-Thermocouple, RTD, Pre-Set T-stat
4)Specify with or without sticky back (PSA-pressure sensitive adhesive)
5)Specify holes, notches, cutouts etc.
6)Provide drawing and or image or sample when required