SIGRAFLEX® Sealing Materials for the Pulp and Paper Industry

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Sealing materials guaranteeing reliability and service life of plants and systems and minimizing fugitive emissions and downtimes, thus reducing total costs of operation, are key components in pulp and paper mills.

Find the optimum graphite
gasket material

Let our Product Finder Flexible Graphite guide you to the optimum gasket material for your requirements.

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Our customers benefit from the high-quality and high-purity of SGL Carbon’s SIGRAFLEX packing yarns when producing braided packings. Since the quality and state of the yarn used is crucial to the properties of the braided packing, in addition to an adequate manufacturing method.

Especially our high-purity, continuous graphite rayon yarns, which have a carbon content ≥ 99,9% and are soft, compliant and resistant to media, are excellent for high speed pump applications and where minimum coating is desired. PFAS-free coatings are available.

SIGRAFLEX^® PAN Graphite Yarns

SGL Carbon’s SIGRAFLEX PAN graphite yarns are not only of high purity (carbon content ≥ 99%), but also extremely oxidation and media resistant and temperature stable. In addition they show a low friction coefficient. When specially coated, they also meet the latest Shell specification MESC SPE 85/204 for graphite.

SIGRAFLEX UNIVERSAL Sealing Sheet and Gaskets

SIGRAFLEX^® UNIVERSAL and UNIVERSAL PRO

SIGRAFLEX UNIVERSAL and UNIVERSAL PRO are adhesive-free gasket sheets. They are made from SIGRAFLEX flexible graphite foil reinforced with tanged stainless steel. The sheets are impregnated to reduce leakage and improve handling. In addition, the PRO version complies with TA Luft leakage requirements for all sheet thicknesses.

The solutions described in our SIGRAFLEX portfolio are as wide ranging as our customers’ demands on sealing materials for the pulp and paper industry.