Perlast G75TX sets new benchmark for marine engine perfluoroelastomers.

High performance, marine engine seals specialist Precision Polymer Engineering (PPE), a unit of IDEX Corp., announces Perlast G75TX, a new generation of perfluoroelastomer seal that extends the life of pre-heat chamber and exhaust valve seat seals as engines burn hotter to meet lower emissions standards.

Engine manufacturers and operators are under pressure to reduce SOx, NOx and particulate emissions whilst achieving higher efficiencies, improved fuel economy, and extended maintenance intervals. Perfluoroelastomers are commonly used in the hottest parts of the engine for pre-heat chamber and exhaust valve seat seals. However until now they have suffered from a poor compression set, typically 20%, reducing the seal’s operational life. Perlast G75TX is the first perfluoroelastomer to provide a compression set of 8%, while improving the elastomer’s characteristic high temperature and chemical resistance.

Perlast G75TX sets new performance benchmark
Perlast G75TX has been formulated to provide improved resistance to chemically aggressive, coolants at temperatures up to +327OC (+621OF). In addition, the perfluoroelastomer has low permeability to chemically aggressive coolants making it less prone to swelling, leading to extended in-service performance. And, with an ultra-low compression set of just 8%, many companies are already using the elastomer to increase the efficiency and lifespan of their marine engine seals.

Perlast G75TX is suitable for both dynamic and static applications and can be fully moulded into o rings (any size up to 2m/6.5ft internal diameter) and custom shapes.

“Perlast G75TX is the culmination of perfluoroelastomer developments at PPE over the past 5 years that have systematically improved the elastomer’s high temperature performance, then chemical resistance and now finally compression set. It sets a new performance benchmark for perfluoroelastomers that simultaneously extends the elastomer’s operating limits in marine engines,” says David Holt, business development director, PPE Ltd.

PPE is a world leading designer and manufacturer of high performance rubber sealing solutions. The company’s elastomers product range is used in many demanding manufacturing environments around the world. Applications as varied as semi-conductor manufacturing, food processing, pharmaceuticals, marine engineering and power generation benefit from PPE’s innovative, robust and reliable sealing solutions.

Founded in 1974, PPE has over 35 years specialist sealing expertise, offering an unrivalled range of products from over 170 elastomer materials. The company’s materials scientists and applications technologists are working at the forefront of elastomer technology, developing new materials for specialist applications. Thesinclude PERLAST®, the world’s leading perfluoroelastomer for critical sealing applications such as semiconductor and pharmaceutical manufacturing, and ENDURA® which was specifically developed for use in the oil and gas industry.

For more information on Perlast G75TX, rubber o rings and all the PPE products visit http://www.prepol.com.