expanded ptfe tape is a gasket product manufactured from 100% natural expanded PTFE material. It is ideal for glass-lined, plastic or enameled flanges and all stressed joints. It is soft and compressible under reduced bolt loads and can compensate for irregularities on the flange sealing surface. It has an adhesive-backing and can be easily assembled in a wide variety of accessible bolted connections with flat or serrated flange surfaces. It conforms easily to rough or abnormal types of surface, requires lower bolt torques than the majority of gaskets and ends in an extremely tight seal.

Using this product eliminates the need for large inventories of finished gasket PTFE sheets, saves time and money by eliminating template work and precutting and reduces installation times. It has excellent cold flow and creep resistance and can withstand high-temperature applications.

It is recommended for flange connections, steel and glass-lined pipe systems, concrete lids, fume ducts, heat exchangers, ceramic joints, pump housing flanges, steam vessels, plastic or enameled containers, chemical and food industries and special shaped sealing surfaces. Suitable for a wide range of temperatures, from cryogenic up to +260degC. The material is innately hydrophobic, non-wetting and non-contaminating with outstanding chemical resistance to most acids, bases, esters, ketones, aldehydes, lubricants, solvents and fuels.

Before the tape is applied, the sealing surface should be cleaned and greased to ensure a good bond with the surface. The overlapping areas should be skived and cut off to the recommended overlap length. When installed, the tape should be pressed firmly onto the sealing surface with a hand pressure or with a mechanical device (torque wrench) in a series of progressive circular torque sequences.