Press release
September 26, 2019

Evonik launches new polyimide fiber on the market

Evonik has developed a new generation of polyimide fibers for the rising demands of the industry. The new product, brand named P84® HT, is distinguished by improved mechanical stability and flexibility at continuously high operating temperatures.

The new polyimide fiber continues Evonik’s three decades of tradition of developing and producing high-performance polymer-based fibers for the hot gas filtration market at the Group’s Lenzing/Schörfling sites in Austria.

High-tech fibers with maximum filtration efficiency

With their unique multilobal cross-section and the largest surface area available in the market, these high-tech fibers from Evonik offer the best filtration efficiency. Due to their excellent chemical and physical properties, P84® HT high-performance fibers can be used in a wide variety of applications. These range from filter media for high-temperature filtration, through protective clothing and sealing materials for space vehicles, to various high-temperature applications such as thermal insulation.

Another competitive differentiating factor of P84® HT consists in the improved textile properties at high temperatures. The new polyimide fiber from Evonik retains its flexibility better than other materials, even at temperatures around 280°C. As a result, it remains more stable in applications with relatively high average temperatures and frequent temperature spikes. A standardized bending test shows that the new P84® HT fiber has almost twice the flexibility of standard materials.

P84®—the ultimate solution in hot gas filtration

In hot gas filtration applications, for example, the innovative P84® HT filter media retain significantly higher permeability over their entire life cycle. Depending on the field of application, this could reduce emission of fine dust, waste gases and sensibly reduce the total cost of ownership of the plant.

Evonik is the leading global producer of chemically resistant, thermally stable, and non-flammable polyimide fibers. These are produced at its chemical production sites in Lenzing, and Schörfling am Attersee, Austria.

Company information

Evonik is one of the world leaders in specialty chemicals. The focus on more specialty businesses, customer-oriented innovative prowess and a trustful and performance-oriented corporate culture form the heart of Evonik’s corporate strategy. They are the lever for profitable growth and a sustained increase in the value of the company. Evonik benefits specifically from its customer proximity and leading market positions. Evonik is active in over 100 countries around the world. In fiscal 2018, the enterprise with more than 32,000 employees generated sales of €13.3 billion and an operating profit (adjusted EBITDA) of €2.15 billion from continuing operations.

About Resource Efficiency

The Resource Efficiency segment is led by Evonik Resource Efficiency GmbH and produces high performance materials and specialty additives for environmentally friendly as well as energy-efficient systems to the automotive, paints & coatings, adhesives, construction, and many other industries. This segment employed about 10,000 employees, and generated sales of around €5.5 billion in 2018 from continuing operations.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.