IMPA: 812491

Marine Leakage Prevention, Corrosion Protection & Insulation Tape

The Marine Leakage Prevention & Insulation Tape (IMPA 812491) is a high-performance sealing solution designed for shipboard pipe threading, flange joints, and valve connections. Manufactured from durable polytetrafluoroethylene (PTFE), this tape provides a reliable seal against water, oil, hydraulic fluids, and compressed air systems, preventing costly leaks and system failures in demanding marine environments.

Beyond leak prevention, this versatile tape forms a protective barrier that resists corrosion and electrolysis between dissimilar metals, while offering excellent dielectric properties for electrical insulation applications. Its robust construction ensures long-lasting performance in both fresh and saltwater conditions, making it an essential packing and jointing material for maintenance crews and ship chandler supply inventories.

Key Features

Technical Specifications

SpecificationValue
Product TypePTFE Thread Seal Tape
Width12 mm (1/2") / 19 mm (3/4") / 25 mm (1") options
Thickness0.1 mm – 0.15 mm
Length15 m / 20 m per roll
Temperature Range−200 °C to +260 °C
Pressure RatingUp to 100 bar (water)
Dielectric StrengthExcellent electrical insulator
Chemical ResistanceResistant to most acids, alkalis, and solvents
StandardsIMPA 812491 / Packing & Jointing

Frequently Asked Questions

Can this tape be used in saltwater environments?

Yes, this tape is fully resistant to saltwater and prevents galvanic corrosion, making it ideal for marine piping and valve connections exposed to seawater.

What temperature range can this tape handle?

The tape operates functionally from –200°C to +260°C, making it suitable for both cryogenic and high-temperature shipboard systems.

Is this tape suitable for electrical insulation?

Absolutely. It provides excellent dielectric strength and is commonly used to insulate electrical connections and protect against moisture ingress.

How do I apply the tape to pipe threads?

Wrap the tape clockwise around the thread, stretching slightly to conform, then press into place. Apply two to three layers for a secure seal.

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