A unique coating technology from Busak+Shamban is used on glass braided shielding for aeroengine applications. Turcon®, a PTFE based coating, improves friction characteristics and increases
resistance to shearing. This innovative method of sleeving has been successfully used around steel clips on fuel line pipes helping reduce aeroengine fire risk.
The copper fuel lines, which wrap around the aircraft engine in a helix, are held in place with steel clips. The fuel lines are subject to possible wear caused by aircraft vibration, which
produces friction between the fuel lines and steel clips. The vibrations increase greatly on take off and landing, leading to a possible fire risk if the fuel lines are damaged through friction
With the aim of reducing surface friction, engineers at worldwide sealing developer and manufacturer Busak+Shamban, proposed sleeving aeroengine fuel pipe clips in glass braided shielding treated
with Turcon®. Initially, they added PTFE to the glass braiding material at the manufacturing stage but performance tests showed that friction characteristics were not good enough for the
application. Following this, Busak+Shamban engineers developed a unique method of coating the glass braiding with their proprietary Turcon® material in a high temperature sintering process.
This Turcon® coated glass braided shielding has also proved of special value in protecting cables installed in areas where they are at risk of shearing, including cabling next to helicopter rotor blades etc.
The Turcon® coated glass braided shielding has proved highly effective in reducing friction and preventing contact wear. It is resistant to the extremes of heat generated by the engine and in some applications, has been found to reduce the effect of fungal growth invasion, which deteriorates copper.
A range of sleeving is now manufactured by Busak+Shamban, utilising the liquid Turcon® method of coating, to suit aerospace and other installations where sheer resistance and minimal friction is important. The sleeving is available in diameters from 0.5 to 15mm and is manufactured in different colours for colour-coding wiring looms.