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DuPont™ Vespel® SCP Family Enables to Achieve Significantly Longer Seal Life

Published on 2011-06-02. Author : SpecialChem

Components machined from DuPont™ Vespel® SCP-5009 shapes offer a new level of performance in engineering polymers. Here, a rotor seal made of the latest polymer has enabled an analytical instrument manufacturer to achieve significantly longer seal life than a previous seal of traditional plastic in a hot HPLC thermal cycling environment involving solvents at pressures above 20 000 psi.

DuPont has raised the performance of engineering polymers to a new level with the global launch of DuPont™ Vespel® SCP-5009 polyimide shapes. The latest product from the Vespel® SCP family is intended to help customers looking for extended part life in many sealing and bearing applications, especially in non-lubricated high-friction environments suited to the polymer's exceptional heat and pressure resistance capabilities. Key industries where Vespel® SCP-5009 shapes can offer substantial processing, performance and metals replacement advantages include analytical instrumentation, medical devices, aerospace and energy and material handling.

"Customers are already demonstrating the wide applicability of Vespel® SCP-5009 shapes in different industries and sealing applications. An example is a rotor seal used in analytical instrumentation for High Performance Liquid Chromatography (HPLC), where traditional engineering plastics were reported to have deteriorated quickly under thermal cycling at high temperature and pressure. Vespel® SCP-5009 shapes are proving very effective in this critical application, delivering a tight, close tolerance seal in many aggressive solvents at pressures above 20 000 psi, and higher productivity from the instrument," said Colleen Carson, global marketing manager - DuPont™ Vespel® shapes.

"We expect engineers, machine shops and OEMs to specify Vespel® SCP-5009 shapes for seals, valves, bearings, bushings, and other components, gaining opportunities for lower replacement rates, fewer rejects, higher productivity and reliability, and reduced maintenance costs," she added.

Vespel® SCP-5009 shapes can help bring cost-saving and performance enhancing solutions to many sealing challenges because they combine resistance to temperatures above 300°C, high compressive and mechanical strength, broad chemical resistance, and a low coefficient of friction. Those properties can help result in significantly extended wear life, exceeding that of lubricated metals. Vespel® SCP-5009 shapes are also very easy to machine to near metal-like tolerances from rods or bars.

The latest product in the Vespel® SCP family of shapes provide enhanced strength and dimensional stability - extending the high-temperature capabilities of non-metallic parts - while offering substantial cost, weight and performance opportunities over metals, ceramics and other engineering plastics.

Authentic DuPont™ Vespel® Shapes

DuPont™ Vespel® shapes are typically the source of machined components and the relationship between process, size, and performance becomes critical to the success of these parts in application. Therefore, it is important to make certain that the particular shape being used is produced by DuPont in the size and composition specified during the qualification process, and that it is backed by the assurance of "Authentic DuPont™ Vespel® Shape" certification. Users can be assured of the integrity of their product by purchasing only Authentic DuPont™ Vespel® shapes from an authorized DuPont distributor.

About DuPont

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 90 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

Source: DuPont


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