Busak+Shamban develop advanced high pressure, non-abrasive seal material for aerospace applications.
Jun 23, 2005
Latest addition to the Busak+Shamban range of aerospace engineered polymer compounds is Turcon® HPNA. This high pressure, non-abrasive, PTFE material is specially formulated to offer low-friction sealing coupled with increased wear resistance and improved leakage control.
Specifically developed to meet the increasing demands on sealing systems within the new generation of airframe platforms, Turcon® HPNA has the ability to offer sealing security throughout the increased component life cycles associated with longer flight times and distances. The increased reliability provided by Turcon® HPNA, directly affects critical component performance, and consequentially, operational efficiency.
A new PTFE material was required to provide increased wear resistance, improved leakage control, superior low-friction and be compliant with global environmental standards. Turcon® HPNA was developed to meet this demanding criteria by utilising latest tribology methods combined with a unique method of material analysis, latest engineered polymer filler packaging and processing techniques. The result is an optimum compound crystalline structure, offering unrivalled physical qualities. The new Turcon® HPNA material properties include: a dense and homogeneous material structure, high temperature resistance through utilisation of aromatic polymer fillers, excellent wear resistance and increased seal stability in-service.
In practice, the material is easily machinable into complex and well defined shapes, has low co-efficient of friction and is suited to low-lubrication environments, whilst the use of non-abrasive filler materials negates abrasion of mating surfaces under high loading conditions. Turcon® HPNA is resistant to a wider range of aircraft fluids than other competitive seal materials, with immersion tests showing the material to have an acceptable resistance to Skydrol 500B.
Turcon® HPNA is ideal for high-cycle, high-frequency applications such as primary flight control (PFCU) sealing systems.