BSTFLEX is a custom tadpole gasket manufacturer supplying engineered bulb-and-tail sealing profiles for industrial ovens, furnaces, boilers, kilns, thermal enclosures, access panels and OEM thermal processing equipment.
We manufacture tadpole gaskets, tadpole seals and tadpole gasket tapes using different cover fabrics, internal cores, bulb dimensions, tail widths and profile constructions according to the actual application.
Custom development can start from a technical drawing, existing gasket sample, cross-sectional dimensions, equipment photograph or operating requirement. Prototype samples can be produced for evaluation before OEM or production quantities are finalized.
View the complete BSTFLEX Tadpole Gasket and Tadpole Seal range or send your gasket dimensions and operating conditions for technical review.

A tadpole gasket should not be selected only by bulb diameter. Cover material, core construction, compression behavior, operating temperature and mounting arrangement all affect the finished seal.
BSTFLEX supports custom manufacturing for:
Cover material is selected according to temperature, abrasion, radiant heat, chemical exposure and surrounding process conditions.
Fiberglass is widely used for industrial oven doors, thermal enclosures and general high temperature sealing.
Silica cloth is available for more demanding thermal environments where a higher-temperature textile cover is required.
Ceramic textile constructions are available for severe thermal sealing environments.

The internal core influences bulb firmness, compression force, recovery and mechanical support.
Available constructions can include:
BSTFLEX can manufacture tadpole gasket profiles according to equipment geometry rather than limiting customers to one standard size.
Custom options include:
For OEM projects, a cross-sectional drawing is one of the most effective ways to define the required gasket.
Useful drawing information includes:
Replacement projects often begin with an existing gasket rather than an original engineering drawing.
BSTFLEX can evaluate existing samples for:
Because old gaskets may already be compressed, stretched or damaged, equipment measurements should also be provided whenever possible.
For new gasket profiles or material changes, prototype evaluation helps verify fit and compression before bulk production.

BSTFLEX supports OEM customers requiring repeatable custom gasket profiles for industrial equipment production.
OEM supply can include:
Custom tadpole seals are used where a compressible bulb must remain mechanically attached around a door, panel, hatch or frame.

Industrial oven doors require a sealing profile that can maintain contact around the perimeter while accommodating repeated opening, closing and thermal cycling.
Fiberglass core, stainless steel core and hollow metallic core constructions can provide different compression characteristics depending on the oven design.
Furnace applications may require silica, ceramic or metallic reinforced constructions depending on the actual temperature at the gasket location.
The chamber temperature should not automatically be treated as the gasket temperature. The actual thermal exposure at the door or frame should be evaluated whenever possible.
Custom manufacturing becomes important when:

The temperature capability of one raw material does not automatically define the service limit of the complete tadpole gasket.
A finished gasket may include:
Each component should be reviewed against the intended operating environment.
| Required Information | Recommended Details |
|---|---|
| Application | Oven, furnace, boiler, kiln, duct, panel or other equipment |
| Cover Material | Fiberglass, silica, ceramic, basalt, aramid or coated fabric |
| Core | Fiberglass, ceramic, stainless steel, hollow stainless steel, Inconel or unknown |
| Bulb Size | Diameter or height and width |
| Tail | Width and mounting arrangement |
| Length | Total length or equipment perimeter |
| Temperature | Continuous and maximum temperature |
| Sealing Gap | Minimum and maximum closed gap if available |
| Quantity | Prototype and expected production volume |
| Reference | Drawing, photograph or physical sample |
Yes. Cover material, core construction, bulb dimensions, tail dimensions, finished length and profile can be developed according to drawings, samples and application requirements.
Yes. Existing gasket samples can be used for profile and material evaluation. Equipment dimensions are also recommended because old seals may already be permanently compressed.
Prototype and sample quantities can be discussed for new profile development before production orders are finalized.
Available constructions can include fiberglass, ceramic fiber, stainless steel mesh, stainless steel hollow core and Inconel mesh.
Yes. Bulb size, tail dimensions and overall profile geometry can be manufactured according to the installation requirements.
Yes. BSTFLEX supports OEM production based on approved drawings, samples and customer-specific material specifications.
Yes. Different fiberglass, silica, ceramic and metallic reinforced constructions are available. Final material selection should be based on the actual operating environment.

BSTFLEX manufactures custom tadpole gaskets, tadpole seals and tadpole gasket tapes for OEM equipment manufacturers, industrial maintenance companies and thermal processing systems.
Send your gasket drawing, sample or application data together with the required bulb size, tail width, operating temperature, sealing gap, length and quantity.
Our team can review the required cover material, core construction and profile before preparing a custom manufacturing proposal.