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| Customization: | Available |
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| Certification: | ISO, ISO9001, IATF16949 |
| Application: | Wall/Roof Covering Cloth, Filter Cloth, Fiberglass Mesh Cloth |
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Double Bulb Silicone Ceramic Tape Tadpole Gasket is a high temperature sealing tape designed for doors, covers, access panels, and thermal enclosures where reliable compression sealing is required. The tadpole profile combines a dense ceramic fiber tail with two resilient silicone bulbs, allowing stable sealing under vibration, thermal cycling, and repeated opening and closing.
This ceramic fiber tape gasket is commonly used on industrial ovens, furnaces, boilers, kilns, heaters, exhaust and ventilation equipment, and fire resistant doors. It helps reduce heat loss, blocks hot gas leakage, limits smoke and dust ingress, and protects equipment edges from direct heat exposure.
We can supply multiple tail widths and bulb sizes to match your groove, flange, and compression requirements. Bulk supply, cut lengths, rolls, and preformed gasket sets are available.
High Temp Large Diameter Fiberglass Tadpole Gasket is engineered for high temperature sealing where standard flat tapes cannot compensate for large tolerances or uneven flange surfaces. The gasket features a bulb section that compresses to fill gaps and a tail section that acts as the mounting strip for riveting, stapling, bolting, or adhesive bonding. The bulb is filled with ceramic fiber rope or ceramic fiber tape, which provides high temperature insulation and maintains sealing resiliency in demanding thermal environments.
Compared with standard fiberglass tapes, a tadpole gasket offers stronger gap-filling capability, better compression recovery, and more stable sealing for high temperature equipment such as ovens, furnaces, incinerators, ladle covers, boiler doors, heat treatment furnaces, aluminum casting equipment, and high temperature exhaust or air handling systems. For large diameter designs, the bulb can be expanded to meet oversized sealing requirements while keeping installation simple and maintenance fast.
This product is commonly searched by buyers using terms such as high temp tadpole gasket, large bulb tadpole seal, fiberglass tadpole gasket with ceramic fiber core, furnace door tadpole gasket, kiln seal tadpole gasket, and high temperature sealing rope gasket.
Industrial furnace and oven doors
Kiln door and inspection hatch sealing
Boiler access panel sealing
Fire door and smoke barrier sealing
Exhaust duct access door sealing
Thermal insulation boxes and high temperature enclosures
Metal heat treatment equipment doors
This tadpole gasket is made of a ceramic fiber tape tail that provides thermal insulation and structure, combined with double silicone rubber bulbs that deliver elastic compression and tight sealing. The tail can be stitched, bonded, or mechanically fixed depending on the installation method.
Available forms include straight lengths, rolls, and custom formed shapes for frames and door perimeters.
| Item | Specification |
|---|---|
| Product Name | Double Bulb Silicone Ceramic Tape Tadpole Gasket |
| Gasket Profile | Tadpole gasket with double bulb |
| Tail Material | Ceramic fiber tape |
| Bulb Material | Silicone rubber |
| Color | White tail, bulb color as required |
| Temperature Resistance Tail | Up to 1000 degree C class (ceramic fiber) |
| Temperature Resistance Bulb | Typical silicone range up to 260 degree C |
| Common Bulb Diameter | Customizable |
| Tail Width | Customizable |
| Thickness | Customizable |
| Supply Form | Rolls, cut lengths, preformed gasket sets |
| Fixing Method | Stitching, adhesive bonding, mechanical clamping |
| Main Function | High temperature door sealing, air and gas leakage control, insulation support |
Note: Final temperature capability depends on installation condition, exposure type, and compression design.
| Equipment Condition | Recommended Choice |
|---|---|
| Large door gap or uneven flange | Double bulb for better recovery and sealing |
| Frequent door opening cycles | Double bulb improves resilience under repeated compression |
| High radiant heat near door edge | Wider ceramic tail for improved insulation barrier |
| Limited groove space | Smaller bulb diameter with narrow tail |
| Dust or smoke leakage issue | Higher compression rate and longer contact line |
Measure groove width, door clearance, and compression travel before selecting bulb diameter and tail width.
Typical compression should be sufficient to seal without crushing the bulb permanently.
Keep the ceramic tail away from sharp edges, use mechanical retainers or high temperature adhesive where required.
For frame corners, preformed or miter-cut joints can improve continuity.
A tadpole gasket is used to seal high temperature doors and access panels. The bulb provides compression sealing, while the ceramic fiber tail helps block heat transfer and supports the profile around the door perimeter.
Double bulbs provide a wider sealing contact and better recovery when the door flange is not perfectly flat. It helps maintain sealing performance during vibration, thermal cycling, and repeated opening and closing.
The ceramic fiber tail is suitable for very high temperature zones. The silicone bulb is used for elastic sealing and typically works in medium high temperature ranges. The real performance depends on whether the bulb is directly exposed to flame or only compressed in a protected groove.
Yes. Bulb diameter, bulb spacing, tail width, tail thickness, and total height can be customized to fit different grooves and door gaps.
It can be supplied in rolls, cut lengths, or preformed gasket sets for door frames. Provide the perimeter size and corner design, and we can recommend the best supply format.
Common methods include stitching to a carrier, bonding with high temperature adhesive, or mechanical clamping with retainers. The choice depends on the door structure and service temperature.
For new installations, minor odor can occur if any adhesive or binder is heated for the first time. Proper ventilation during initial heating cycles is recommended.
Provide bulb diameter, bulb spacing if specified, tail width and thickness, total gasket height, required length per roll or per set, operating temperature, and the application equipment type.
To ensure correct fit and sealing, share these details:
Door gap or groove size
Required compression range
Service temperature and whether direct flame exposure exists
Required roll length or frame perimeter size
Installation method preference
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