We are committed to providing outstanding glassy carbon products for a wide range of high-tech applications. Thanks to over 30 years of experience in the field of manufacturing and processing of ultrapure SIGRADUR® glassy carbon products we are able to satisfy highest customer demands. Please feel free to contact us for product inquiries or custom glassy carbon product solutions:


Phone: +49-8271-818610
Fax: +49-8271-7372

HTW Hochtemperatur Werkstoffe GmbH
Gemeindewald 41
D-86672 Thierhaupten