Mechanical grade sealing tape - Product Overview

PTFE has been used as a seal in critical operations for close on 50 years. It is undoubtedly the material of choice for applications that require totally reliable sealing in any environment, from household water systems to the most aggressive and hazardous chemicals. The properties that make PTFE ideally suited for all sealing applications include:

PTFE tapes can be used with all types of pipe, including iron, steel, copper, brass, alloys, plastics and even rubber. The tape is highly pliable so that it embeds in the threads, and remains compliant at high and low temperatures even at high pressure.

A Quality Product

The standard density of unsintered PTFE is 1.5 g/cm3 and this is reduced during the manufacturing process, often as low as 0.3 g/cm3.

By stretching the tape from its original density, improved drape and elasticity is added, thus improving its sealing properties. It must be noted however that PTFE tape is also a permeable fibrous product and that during the stretching process the pores between the fibers are being enlarged. It should be noted that tape performance is determined primarily by the level and balance of tensile strength and elongation between the longitudinal and transverse directions. These factors, along with the combination of thickness and density are crucial to the effectiveness of the tape as a sealant.

Unfortunately, in an effort to reduce costs to satisfy pressures in the distribution chain, much of the tape offered for sale today is stretched excessively and in an unbalanced ratio thus making the product almost unsuitable for the purpose for which it was manufactured. We kindly suggest that all users specify their desire for tapes from quality producers that meet acknowledged international performance standards.

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