Silicon Rubber Heaters

Silicon Rubber Heaters 

 Termination Options

• Hampton Controls Flexible Heaters come standard with 10” of 22 ga. Teflon leads. Other gauge leads available upon request.
• The leads are soldered at the lap connection then covered with a vulcanized lead cap. 

• Lead Locations
  
  
  
• Standard lead option specifications
  
• Lead Termination Options

​	Teflon	Silicon	SJO Cable	HPN Cable	HPN Cord Set
A.W.G.	22 GA.	22 GA.	18 GA.	18 GA. Conductor	18 GA. Conductor
Voltage	300 Volt	300 Volt	300 V/10 Amp.	125 V/10 Amp.	125 Volt/10 Amp.
Temp.	250°C/482°F	150°C/302°F	90°C/194°F	90°C/194°F	90°C/194°F
O.D.	.060”	.060”	.285”	Flat	Flat
Advantages	High Temperature, Abrasion Resistant.	Bonds well with silicon. Better moisture seal.	Rugged.	Inexpensive 2 conductor wire.	Plugs in easily.
Cons	Does not bond with silicon	Lower Temperature Nicks Easily	Bulky lead cap.	Bulky lead cap.	Bulky lead cap.

• Insulated terminals or spade lugs
• Crimp connectors
• Standard electrical plugs
• Mini connectors
• Twist lock plugs
• Stripped ends

• Heat Shrink
• Silicone Sleeving
• S/S Braid
• S/S Conduit

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• Lead caps can be placed anywhere on the heater. They can also be extended from the heater in order to allow for a more even heat distribution.
• Extended lead caps are often used to cure composites when tight temperature tolerances are needed.
• 1.5” x 1.5” cold section is required.

Silicon Rubber Heaters Terminations

• Hampton silicon rubber heaters are available with a variety of lead wires and terminations.
• Most can be applied to our in stock heaters.
• Teflon leads are our standard termination. 22 ga. Is standard, larger sizes are available. They're rated to 250 °C, and are abrasion resistant.
• Silicon rubber leads are rated to 150 °C and bond well to the silicone and are extremely moisture resistant. They are not very abrasion resistant.
• SJO cable is available in 2 or 3 conductor. It is rated to 90° C and is very durable. It does require a somewhat bulky lead cap.
• HPN cord is inexpensive and rated to 90°C
• Cordsets with molded plugs are available in HPN and SJO cord
• Spade Terminals and other special terminations are also available.

Silicon Rubber Heaters 

Mounting Methods

There are several options for installation or mounting Silicon Rubber Heaters. Pressure Sensitive Adhesive An easy mounting method is to peel and stick. PSA is attached directly to one side of the heater.

Just peel away the protective liner and attach the heater to the desired tool. PSA is rated to a continuous temperature of 300 F and a maximum intermittent temperature of 400 F. It is not recommended for curved surfaces. The heater should be installed within 6 months of manufacture.

Factory Vulcanizing Another method of installation is to send your tool to the Hampton Controls Heaters factory. The tool is placed in a vacuum table and the SRH is vulcanized directly to the tool.

This is the strongest bond available. Field Applied Adhesive SRH may also be attached with field applied adhesive. Hampton Controls Heaters will supply the required RTV to adhere the heater to the desired surface.

We offer a room temperature curing adhesive. Apply a thin film of RTV on the entire bottom of the heater. After positioning the heater on the part, use a roller to remove all air trapped between the heater and the part. The RTV should be allowed to cure for 24 hours.

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 is more difficult to apply than PSA, but if done properly produces a superior bond.

Hampton Controls can supply a room temperature curing RTV rated to 400°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 is the most common mechanical mount. Boot hooks are usually positioned 1.25” - 2” apart along the length of the heater.
• High temperature lace rated to 1000 F locks the heater in place similar to lacing a boot.

Spring and Grommets

• Each end of the spring is attached to a grommet, securing the heater to the tool.
• Grommets are spaced approximately 2” apart.

Snap Fasteners

• Snaps are only used on heaters with sponge insulation.
• Insulation is available in 1/16”, 1/8” 1/4”, 3/8” or 1/2” thickness

Rubber Rings

• High temperature rubber rings rated to 300° F.
• Can be used in conjunction with boot hooks and maintain constant tension through expansion and contraction

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Velcro

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• 1” wide Velcro straps secure the heater to the tool.
• Temperature rating: –30 °F - +380 °F

​Temperature controls

Hampton Controls Silicon Rubber heaters can accommodate pre-set or adjustable thermostats, thermal cut-offs, and Type J thermocouples . The most common type of temperature controls are pre-set thermostats. Each has a specific temperature range and maximum amperage capability. Please contact the factory for availability.

• The most common type of temperature control are pre-set thermostats.
• They can be mounted to sense the temperature of the surrounding atmosphere or to sense the part temperature.
• 10 amps maximum at 240 volts. 14 amps maximum at 120 volts.
• Not recommended for low voltage applications

• Surface sensing
  thermostats
• Air sensing
  thermostats
• Adjustable
  thermostats
• THERMOCOUPLES
  
  

Surface sensing thermostats are mounted to monitor the temperature of the part that the heater is attached to. They can be mounted to stock heaters. Hampton Controls has several stock setting available and if other temperature setting are required, thermostats can be special ordered.

Close temperature	Open temperature
32°F	55°F
80°F	110°F
145°F	175°F
170°F	200°F
270°F	300°F

Thermostats are snap action style and are rated to 10 amps at 240 volts or 14 amps at 120 volts. They are not recommended for low voltage heaters

Air sensing thermostats are mounted to sense the temperature of the ambient air. They are commonly used with enclosure heaters when the air temperature is more important than the heater temperature. Air sensing thermostats can be added to stock enclosure heaters and standard stock heaters. They are available in the same temperature ratings as the surface sensing thermostats..

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Adjustable thermostats can only be used to sense part temperature. They are often used with drum heaters but can also be used with standard heaters. Temperature adjustment range is 25°F to 330°F.

Thermocouples can be mounted to any silicon rubber heater and any calibration (J, K, etc.) is available.

Thermocouples are small and are easily embedded anywhere on the heater. Almost any type of Thermocouple can be used. Type J is the most common.

Stock Thermostats

• Pre-set: on at 35°F / off at 55 F
• Pre-set: on at 80°F / off at 110 F
• Pre-set: on at 145°F / off at 175 F
• Pre-set: on at 170°F / off at 200 F
• Pre-set: on at 270°F / off at 300 F
• Adjustable 25°F to 330 F

*Consult factory for other calibrations

• Drum Heaters
• Optional Thermostats
• Stock List

Hampton's drum Heaters are an easy way to heat up drum contents. Various sizes and lengths allow you to heat up practically any drum, pail or barrel. Uniform heat prevents scorching or degradation of the contents. The silicon rubber band heater is placed below the level of the fluid. The easy spring lock-up provides movement of the band when content levels fluctuate. The band style drum heater can be used on plastic, alloy or just about any material.

Applications:

• Freeze protection
• Viscosity control
• Speeding up the flow of liquids
• Maintaining product consistency

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Features:

• Easy installation with spring loaded fastener.
• 3 conductor cord set.
• Internally grounded.
• Can be wrapped around any object
• Options thermocouples, RTD’s, holes and cutouts

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Thermostats can easily be attached to stock drum heaters. Available stock thermostats include:

• Adjustable 25°F - 330°F
• Pre-set (see above stock thermostat table)

Stock Drum Heater Specifications*

All heaters come with 6 ft. SJO cord set and easy spring loaded fastener.

​	Capacity	Width	Height	Volts	Watts
SRD5-31-N	5 Gallon Drum	3	31	120	300
SRD5-41-N	5 Gallon Drum	4	31	120	550
SRD55-31-N	55 Gallon Drum	3	64	120	1000
SRD55-32-N	55 Gallon Drum	3	64	240	1000
SRD55-41-N	55 Gallon Drum	4	64	120	1500

* 5 gallon fits 11.5” diameter drum. 55 gallon fits 22.5” diameter drum

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Order Your Silicon Rubber Heaters

Hampton Controls looks forward to serving you and supplying you with your Industrial Needs.

Feel free to call us if you need any assistance at: 724-861-0150