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High-Temperature Tadpole Gaskets & Textile Sealing Profiles
TEXTILE SEALING PROFILES · CUSTOM-MADE
Custom-Fabricated Sealing Profiles for Demanding High-Temperature Applications
High-temperature tadpole gaskets and textile sealing profiles combine a flexible bulb core with a durable fabric covering. The bulb forms the compressible sealing element, while the outer textile layer encloses the profile and, in a classic tadpole gasket, also forms the mounting tail.
Fingerhuth custom-fabricates the profiles using a round high-temperature packing or sealing cord as the bulb core and a high-temperature fabric selected to match the application requirements. Both components are sewn together to form a defined sealing profile.
In addition to classic single-bulb tadpole gaskets, we also manufacture double-bulb profiles and application-specific profile geometries. Bulb diameter, tail width, fabric grade, core material and profile dimensions are engineered to suit the specific sealing application.
The Right Material for Your High-Temperature Sealing Profile
The fabric covering and bulb core are selected according to the thermal and structural requirements. Four material groups are available for our custom-fabricated tadpole gaskets and sealing profiles.
Proven base material for flexible textile sealing profiles at moderate operating temperatures.
Higher-temperature glass fiber grade for sealing profiles exposed to increased thermal loads.
High-SiO₂ fiber material for custom sealing profiles exposed to high thermal loads.
High-temperature fiber with increased biosolubility and reduced biopersistence for demanding sealing and insulation applications.
Tadpole Gaskets, Double-Bulb Profiles & Custom Textile Profiles
Unlike standardized profiles supplied by the metre, our high-temperature sealing profiles are tailored to the specific installation conditions. Bulb diameter, profile geometry, tail width and material combination can be engineered to meet the technical requirements.
| Profile Type | Construction | Function | Dimensions |
|---|---|---|---|
| Tadpole Gasket | Single bulb with lateral mounting tail | Sealing and mounting | Custom-made |
| Double-Bulb Profile | Two textile bulb cores with a shared fabric covering | Two defined sealing zones | Custom-made |
| Custom Profile | Application-specific combination of bulb core and high-temperature fabric | According to installation conditions | According to drawing / sample |
Custom design: Bulb diameter, tail width, profile geometry, fabric grade, core material and overall dimensions are specified to suit the sealing application. Technical drawings, dimensional specifications or existing samples can serve as the basis.
Technical note: The permissible operating temperature of the finished sealing profile depends on the material combination used. Fabric, bulb core, sewing thread and any additional finishes must be selected according to the actual operating conditions.
BULB CORE · FABRIC COVERING · PROFILE GEOMETRY
Bulb Core and Fabric Form a Functional Sealing Unit
The textile sealing profile is created by combining a bulb core with a fabric covering. A round high-temperature packing or sealing cord is used as the bulb core, forming the compressible sealing element of the profile.
A high-temperature fabric selected for the application encloses the bulb core and is sewn to form the finished profile. In a tadpole gasket, the fabric extends beyond the bulb to form the mounting tail. Double-bulb profiles combine two bulb sections within a custom-designed profile construction.
Design the Sealing Profile to Match the Installation and Sealing Function
Because tadpole gaskets and sealing profiles are custom-fabricated, selection and design must consider not only temperature, but also sealing gap, bulb diameter, mounting conditions, required compression and mechanical loads.
- Temperature
- Continuous and peak temperature as well as the type of thermal exposure
- Profile Geometry
- Tadpole gasket, double-bulb profile or custom profile geometry
- Bulb Core
- Round high-temperature packing or sealing cord selected for the required sealing function
- Dimensions
- Bulb diameter, tail width and profile dimensions matched to the installation conditions
- Material
- E-glass, HR glass, silica fiber or AES fiber according to the temperature requirements
- Mechanical Load
- Consider compression, friction, movement and recurring opening cycles
- Industrial Furnaces
- Furnace doors, flaps and thermally stressed frame and sealing areas
- Doors & Inspection Openings
- Flexible sealing profiles for doors, hatches, covers and components that are opened repeatedly
- Boiler & Plant Engineering
- Custom sealing solutions for thermal process and plant components
- Mechanical Engineering
- Profiled textile seals for defined installation geometries
- Thermal Processes
- Sealing and thermal separation of components exposed to high temperatures
- OEM & Series Production
- Reproducible sealing profiles manufactured to drawings, samples or defined dimensions
Your High-Temperature Sealing Profile Made to Drawing or Sample
Send us the temperature range, required profile geometry, bulb diameter, tail width, installation conditions and quantity. Drawings, photos or existing samples enable targeted technical design and quotation preparation.
Personal advice on product, configuration and application concept.
