Image unavailable
Image unavailable
Watlow
Watlow Wire-Wound Silicone Rubber Flexible Heaters
Quote on request
No online payment · add lines to RFQ BOM
Watlow silicone rubber wire-wound heaters; to ~260 °C; custom shape/V. RFQ size/W.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
N/A (heater; max operating temperature up to 260 °C / 500 °F for silicone rubber constructions)
Accuracy
N/A (heater assembly; not a measuring instrument)
Output
N/A (resistive heating element)
Supply
Configured per order
Protection
Moisture- and chemical-resistant silicone construction (not a published IP code on COL-SRH-0618)
Ambient temperature
Up to 260 °C (500 °F) operating class per silicone rubber specification sheet
Fits surface heating where you need a Watlow wire-wound silicone rubber flexible heater—custom shapes with wire-wound elements for strong flexibility and temperatures into the ~260 °C class.
Key advantages
- Construction — Silicone rubber insulated wire-wound flexible heater
- Temperature class — Up to ~260 °C (500 °F) application dependent
- Watt density — Up to ~12.5 W/cm² (80 W/in²) class depending on design/T
- Thickness — Wire-wound ~0.055 in (1.4 mm) typical
- Customization — Shapes, voltages, leads, PSA / vulcanized mount
Typical applications
- Drum / tank wall heating.
- Enclosure freeze protection.
- Process surface warm-up pads.
Selection guide
- Size / shape
- Voltage / wattage
- Max surface temperature
- Mounting — PSA vs vulcanize vs clamp
Common mistakes
- Exceeding watt density for the surface temperature.
- Poor thermal contact creating hot spots.
- Ordering etched-foil when wire-wound flexibility is required.
When to RFQ / what to tell us
- Dimensions, V/W, max T.
- Quantity, lead length, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 33301 |
| Brand | Watlow |
| Model | Silicone Rubber Wire-Wound Flexible Heaters |
| Product type | Flexible Heater |
| Type | Watlow wire-wound silicone rubber flexible heater |
| Max temperature | Up to ~260 °C (500 °F) class (application dependent) |
| Watt density | Up to ~12.5 W/cm² (80 W/in²) class depending on temperature/design |
| Element | Wire-wound element; typical thickness ~0.055 in (1.4 mm) |
| Construction | Silicone rubber insulated flexible heater; custom shapes/voltages |
Documents
FAQ
Q: Max temperature? A: About 260 °C (500 °F) class, application dependent.
Q: Wire-wound vs etched foil? A: Wire-wound is thicker/more flexible; etched foil can support higher watt density.
Q: What should I send for a quote? A: Size/V/W, max T, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | N/A (heater; max operating temperature up to 260 °C / 500 °F for silicone rubber constructions) |
| Accuracy | N/A (heater assembly; not a measuring instrument) |
| Output | N/A (resistive heating element) |
| Supply | Configured per order |
| Protection | Moisture- and chemical-resistant silicone construction (not a published IP code on COL-SRH-0618) |
| Ambient temperature | Up to 260 °C (500 °F) operating class per silicone rubber specification sheet |
| Mounting | Vulcanizing adhesives or fasteners; conforms to curved surfaces |
| Sensor type | Optional sensors/thermostats per flexible heater options |
| Notes | OEM Watlow COL-SRH-0618 silicone rubber heaters specification sheet + flexible catalog. No Instrumart. |
| Element Type | Wire-wound element in fiberglass-reinforced silicone rubber (also etched-foil family available) |
| Watt Density | Up to 80 W/in² (12.5 W/cm²) class |
| Thickness | Wire-wound approx. 0.055 in (1.4 mm) per COL-SRH-0618 |