General Description : An infusible, wholly aromatic polymer that can strictly be described as nylon I,I - but rarely is. Manufactured only as a fibre (by solution spinning), it has a very high thermal stability and temperature and flame resistance. In contrast to its chemical isomer Kevlar®, its tensile properties are similar to those of normal textile fibres but its hydrolysis resistance in hot wet conditions is better (than Kevlar's). Its radiation resistance is also very good.

The fibre is converted into a number of fibre-based forms, including : calendered and uncalendered papers, pressboards of three different densities and honeycomb. The last is made from Nomex® paper coated in a phenolic resin. Other forms include felts.

Applications include protective clothing (e.g. for firefighters and racing drivers), process equipment and insulation and filtration media.

Explanation of Type numbers

T410 Calendered Paper
T411 Un-calendered Paper
T418 Calendered Paper, containing 50% mica
T992 Low Density Pressboard
T993 Medium Density Pressboard
T994 High Density Pressboard