Tadpoles

Custom made tadpoles

Tadpole are gaskets composed of a bulb, full or empty, and a tongue. Flexible, they can be used to seal or caulk empty spaces. The combinations of the bulbs and tongues are countless. The bulb, simple, central or double, can have an inner core of fiberglass, ceramic, stainless steel wire cable or inconel wire cable. Referring to the application and surrounding environment, we will cover the bulb with the most performing fabric (see Fabrics section for available textiles). We can use a cloth or a metallic mesh that can also be coated or treated with silicone, PTFE, neoprene or vermiculite.

The combinations are diverse, each with its own qualities : the following four factors need to be analyzed in order to choose the perfect tadpole, the temperature, the abrasion resistance and the shape.

Applications

The tadpoles are a smart choice for many low pressure applications, for which they perform well. They are used in different manufacturing industries and metallurgical processing for :

• Insulating oven doors, furnaces and boilers
• Sealing between uneven surfaces
• Caulking empty spaces
• Preventing leakage
• Controlling dust in the environment.

Specifications

Technical Data

Tadpole construction coating
Rubberized fiberglass cloth
Bulb Fiberglass cable
T°F 392°F
Abrasion Good
Recovery resistance Medium
Characteristics Impermeable, steam resistant
Silicone fiberglass cloth
Bulb Inconel wire mesh
T°F 500°F
Abrasion Medium
Recovery resistance Good
Characteristics Airtight, fits on uneven surfaces
Teflon® treaed fiberglass cloth
Bulb Hollow stainless steel cable
T°F 550°F
Abrasion Good
Recovery resistance Excellent
Teflon® treated fiberglass cloth
Characteristics Resistant to steam, friction and chemicals
Aramid cloth
Bulb Inconel wise mesh
T°F 650°F
Abrasion Excellent
Recovery resistance Good
Characteristics Friction resistant
Fiberglass cloth
Bulb Fiberglass cable
T°F 1000°F
Abrasion Medium
Recovery resistance Medium
Characteristics Used in most applications, economical
Graphited fiberglass cloth
Bulb Hollow stainless steel cable
T°F 1000°F
Abrasion Good
Recovery resistance Excellent
Characteristics Prevents from sticking, fits on uneven surfaces
Silica cloth
Bulb Ceramic cable
T°F 2300°F
Abrasion Poor
Recovery resistance Poor
Characteristics Static applications
Inconel wire mesh
Bulb Ceramic cable
T°F 2300°F
Abrasion Good
Recovery resistance Medium
Characteristics Friction resistant
Ceramic cloth
Bulb Ceramic cable
T°F 2300°F
Abrasion Medium
Recovery resistance Poor
Characteristics Very high temperature applications
N.B. The information, details and values indicated are to the best of our knowledge. We recommend to conduct tests according to local conditions. The data is subject to some variations without notice.