Tadpole Seal | High Temperature Furnace & Oven Door Gasket
Tadpole Seal
High Temperature Furnace, Oven and Boiler Door Seals
Tadpole seals are specialized high-temperature sealing solutions designed for industrial equipment such as furnace doors, industrial ovens, boilers, kilns, and thermal processing systems.
The unique design consists of a round bulb-shaped sealing head attached to a flat tail section.
This structure allows the bulb to compress tightly against the sealing surface while the flat tail is securely mounted to a door frame, flange, or metal channel.
These seals are typically manufactured from high temperature fiberglass fabrics and may include protective coatings such as vermiculite, graphite, or silicone to enhance durability and heat resistance.
The bulb section can be reinforced with stainless steel mesh or Inconel wire mesh cores, providing excellent compression strength and long service life even under repeated thermal cycling.
Tadpole gaskets are widely used in industries including steel processing, glass manufacturing, ceramics production, power generation, and industrial heating equipment.
They help maintain sealing integrity, prevent heat loss, and improve energy efficiency in high temperature operations.
Types of Tadpole Seals
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Fiberglass Tadpole Gasket
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Vermiculite Coated Fiberglass Tadpole Seal
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Silica Tadpole Gasket for Ultra High Temperature
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Wire Mesh Reinforced Tadpole Seal
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Inconel Core Tadpole Gasket
Key Features
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Excellent high temperature resistance
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Flexible design for door and flange sealing
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High compression recovery
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Reinforced mesh core for durability
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Custom sizes available
Typical Applications
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Industrial furnace doors
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Boiler doors
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High temperature ovens
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Steel mill furnaces
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Glass manufacturing equipment
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Ceramic kilns
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Power plant heating systems
Available Custom Options
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Bulb diameter: 10 mm – 60 mm
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Tail width: 20 mm – 120 mm
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Core reinforcement: stainless steel or Inconel mesh
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Material: fiberglass, vermiculite fiberglass, silica
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Custom lengths available
Frequently Asked Questions
What is a tadpole seal?
A tadpole seal is a high temperature gasket with a round bulb and flat tail used for sealing furnace and oven doors.
Why are mesh cores used in tadpole gaskets?
Mesh cores provide structural strength and prevent collapse during compression cycles.
Can tadpole seals be customized?
Yes, bulb diameter, tail width, material, and reinforcement options can all be customized.
Request a Quote
For pricing, samples, or custom tadpole seal solutions, please contact our team.
Contact Us
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Silicone Coated Fiberglass Tadpole Gasket
Silicone coated fiberglass tadpole gasket is a flexible thermal sealing product designed for oven doors, industrial equipment doors, dampers, removable panels, and enclosure joints. Made with a silicone coated fiberglass outer cover and fiberglass core, it combines sealing flexibility, surface conformity, and stable performance in moderate high temperature environments. It is suitable for irregular sealing surfaces and repeated open-close applications where standard flat tapes cannot provide enough compression or durability. Based on the reference product class, this construction is commonly positioned for service up to 500°F / 260°C.
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Aramid Cover Fiberglass Core Tadpole Gasket Tape
Aramid Cover Fiberglass Core Tadpole Gasket Tape is a high-performance sealing product designed for furnace doors, boiler doors, industrial ovens, kilns, and other high-temperature equipment. It features a durable aramid outer cover for improved abrasion resistance and a fiberglass core that provides flexibility, resilience, and thermal insulation. The tadpole profile combines a round bulb section for effective compression sealing with a flat tail for easy installation on metal frames and access doors. This structure helps reduce heat loss, control smoke or air leakage, and maintain reliable sealing performance in demanding industrial environments. It is an ideal choice for applications requiring both heat resistance and long service life.
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Vermiculite Coated Fiberglass Tadpole Gasket Tape
The Vermiculite Coated Fiberglass Tadpole Gasket Tape with Inconel or Stainless Steel Mesh Core is a high-temperature sealing solution designed for demanding industrial environments such as furnaces, boilers, ovens, and kilns. This gasket features a vermiculite coated fiberglass outer layer that provides excellent resistance to extreme heat, abrasion, and thermal degradation. The bulb section of the gasket is reinforced with an Inconel wire mesh core or stainless steel mesh core, giving the seal superior compression strength and long service life under repeated door closing and high-temperature cycling. The tadpole shape design includes a round bulb head for effective sealing and a flat tail for easy attachment to furnace doors or metal flanges. This structure allows the gasket to maintain consistent sealing performance while accommodating thermal expansion and mechanical movement. With outstanding heat resistance, flexibility, and durability, vermiculite coated fiberglass tadpole gasket tape is widely used for industrial furnace doors, boiler access panels, oven doors, and other high-temperature sealing applications where reliable thermal insulation and gas sealing are required.
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