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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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High temp large diameter fiberglass tadpole gasket is a flexible high temperature sealing solution designed for industrial doors, furnace joints, kiln lids, boiler access panels, duct flanges, and thermal equipment requiring reliable insulation and compressible sealing. Built with a knitted or braided fiberglass outer jacket and a bulb core made from ceramic fiber rope or ceramic fiber tape, this tadpole gasket delivers excellent thermal resistance, low heat loss, and stable sealing performance under repeated thermal cycling. Large diameter bulb sizes can be produced for wide gaps, uneven mating surfaces, and high clamp force sealing applications.
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.
High temperature sealing for furnace and kiln doors
Large diameter bulb core for wide gaps and uneven surfaces
Fiberglass jacket for abrasion resistance and dimensional stability
Ceramic fiber rope or ceramic fiber tape core for strong thermal insulation
Good compression recovery for repeated opening and closing cycles
Easy installation by riveting, stapling, bolting, or adhesive bonding
Customizable bulb diameter, tail width, thickness, and length
Suitable for industrial thermal equipment, boilers, ducts, and heat treatment systems
| Parameter | Specification |
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| Product Name | High Temp Large Diameter Fiberglass Tadpole Gasket |
| Structure | Fiberglass outer jacket plus bulb core and tail mounting strip |
| Core Material | Ceramic fiber rope or ceramic fiber tape |
| Outer Jacket | Knitted or braided fiberglass |
| Bulb Diameter Range | Custom large diameter available |
| Tail Width Range | Custom available |
| Tail Thickness | Custom available |
| Standard Color | White or off-white, custom colors available |
| Temperature Resistance of Core | Up to 1000 degree C class depending on ceramic fiber grade |
| Recommended Continuous Use | Depends on application and jacket type |
| Installation Method | Rivet, staple, bolt, clamp, high temp adhesive |
| Typical Applications | Furnace doors, kiln lids, boiler doors, duct flanges, thermal equipment seals |
| Supply Form | Meter length, roll, or pre-cut pieces |
| OEM Service | Label, packaging, cut length, drawings supported |
Notes for buyers: Tadpole gasket performance depends on compression ratio, mating surface finish, clamp force, and door design. Provide your gap size, sealing length, and working temperature for accurate recommendation.
Furnace door seals and inspection hatch seals
Kiln door sealing and heat treatment oven sealing
Boiler access panel sealing and refractory door joints
Duct and expansion joint sealing in hot air systems
Incinerator door seals and industrial oven door gaskets
Foundry equipment covers and high temperature chamber sealing
Measure the gap width and the sealing channel depth
Choose bulb diameter that compresses about 20 to 40 percent during closing
Confirm tail width to match your fixing method and mounting surface
Confirm max temperature, flame exposure, and atmosphere conditions
If dust, abrasion, or frequent opening cycles exist, select stronger fiberglass jacket construction
A fiberglass tadpole gasket is used as a high temperature seal for furnace doors, kiln lids, boilers, ovens, and duct flanges. The bulb fills gaps while the tail provides a mounting strip for secure installation.
Ceramic fiber rope and ceramic fiber tape provide high temperature insulation and help the bulb maintain its thermal resistance and shape under heat, making the gasket suitable for severe thermal environments.
Large diameter refers to an oversized bulb section designed to seal wide gaps, uneven surfaces, or doors with higher deformation. It improves sealing stability compared with flat fiberglass tape.
Yes. Bulb diameter, tail width, tail thickness, overall profile, and supply length can be customized based on your drawing or measurements.
Common installation methods include riveting, stapling, bolting with washers, clamping with retaining strips, or bonding with high temperature adhesive. The best method depends on door material and maintenance frequency.
The ceramic fiber core is typically suitable for high temperature classes up to about 1000 degree C depending on grade, while the fiberglass jacket and the real service temperature depend on heat exposure mode, sealing design, and whether there is direct flame impingement. Share your working condition for exact recommendation.
Yes. The bulb structure provides compression recovery, making it suitable for doors that open frequently. For high-cycle doors, choosing the right compression ratio and jacket construction is important.
Yes. We can supply meter lengths, rolls, or pre-cut pieces. We also support OEM labeling and custom packaging.
Send bulb diameter, tail width, tail thickness, total sealing length, operating temperature, installation method, and expected quantity. If possible, include a photo or drawing of the sealing channel.
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