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Silicone Rubber Heaters

Silicone rubber heaters from WATTCO™ are composed of fiberglass reinforced silicone rubbers that are moisture and chemical resistant. Thin and flexible, silicone rubber heater elements are designed to meet the requirements of various low and medium temperature applications that require irregular shapes, sizes, and dimensions.

WATTCO Silicone rubber heaters

Silicone heaters are known for their unique and flexible properties and can withstand mechanical shock and vibration. Silicone heaters have unique qualities such as a high dielectric strength, non-toxicity, and flame retardance. Silicone heaters consist of two “wafers” of silicone with a heating resistor sandwiched in between.

Thermostat controls are options that are used to help reach your target temperature. Teflon lead wires exit any location of your choosing and are offered at any length you require. Perfect for applications that require direct heat such as surfaces, barrels, conical shapes as well as in cylinders and small areas where traditional electric heating elements cannot fit. Adhesive backing is also available to help with fixation. Silicone heaters are used in applications requiring temperatures upwards of 450 degrees F such as freeze protection of electrical enclosures. Get a quote on a silicone rubber heater today.

How Silicone Rubber Heaters Work?

Silicone rubber heaters operate on the basic principle of resistive heating, where electrical energy is converted into heat as it passes through the resistive heating element.

Power Supply

These heaters operates on AC power, with voltages ranging from 12V to 480V depending on the application and industrial usage.

Heat Generation

When an electric current flows through the resistive wire, the electrical resistance causes the material to heat up. The heat is then transferred evenly across the silicone rubber surface.

Uniform Heat Distribution

Due to the flexibility of silicone rubber heaters and the embedded heating elements, the heat is distributed uniformly across the surface.

This ensures consistent heating, which is critical in process heating and temperature-sensitive applications.

Thermostats and Temperature Control

Many silicone rubber heaters can be equipped with built-in thermostats, heating elements or sensors to regulate the temperature. External temperature controllers can also be used for more precise control.

WATTCO also manufactures other industrial heating products such as infrared heaters, control panels, circulation heaters and more. Click here to view all of our products

HAVE A QUESTION?

At Wattco, we have a dedicated team of experts ready to provide you with the answers and assistance you need. Whether you're a seasoned professional looking for technical specifications or in maintenance inquiring about our products, our team of knowledgeable professionals is here to help.

Options
Pressure Sensitive Adhesive

Also called PSA, is the simplest mounting method. Just peel the protective paper from the back of the heater and stick it to your surface. PSA is rated to a continuous temperature of 300°F and intermittent usage up to 400°F. PSA is only recommended for flat surfaces and should be used within 6 months of manufacture.
Field applied adhesive

Field applied adhesive is more difficult to apply than PSA, but if done properly produces a superior bond. Wattco can supply a room temperature curing RTV rated to 400 deg F. After applying a thin film between the heater and the surface, a roller should used to remove all air bubbles, then allowed to cure for 24 hours.
Boot hooks and lace

Boot hooks and lace are the most common mechanical mounting method. Boot hooks are usually positioned 1.25”-2” apart along the length of the heater. The high temperature lace (1000°F) locks the heater in place similar to lacing a boot.
D rings

D rings are a solid wire formed in the shape of a D. They are best suited for medium to large heaters. A strap vulcanized to the heater is looped through the rings.
Springs and grommets

Springs and grommets are spaced about 2” apart. Each end of the spring is attached to a grommet securing it to the cylinder.
Snap fasteners

Snap fasteners are normally only used on heaters with sponge insulation.
High temperature rubber rings

High temperature rubber rings are used in conjunction with grommets and maintain tension as the cylinder expands and contracts. They are rated to 300°F.
Velcro

Velcro is a simple way to fasten heaters. It is rated to 200°F.

Specifications Applications Features & Benefits

Voltage	12V to 600V, AC or DC
Length	1″ to 120″
Width	1″ to 36″
Thickness	0.056″ standard, other thicknesses available
Lead Wire	22 ga. Teflon, (other types available)
Operating Temperature	-70° to 450° F
Wattage Tolerance	+5, -10%

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