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Silicone, EPDM, NBR, HNBR, butyl, natural rubber and chloroprene contain no per- or polyfluorinated substances. The three FKM grades are fluorinated, as is the PTFE we use in laminates. If your application requires freedom from PFAS, tell us when you enquire. We will then check the formulation and supplier documentation for your grade and look for an alternative in another family.",[],[],{"_uid":618,"headline":619,"component":553,"contentbloks":620},"d5e690f8-ef2e-4c8f-b469-1e3c96c39906","What is PTFE?",[621],{"_uid":622,"settings":623,"component":387,"textblocks":626,"background_color":20},"ffe6dec1-8bdf-4ff3-9cdd-bb44587c25f3",[624],{"_uid":625,"hide":41,"component":265,"margin_top":20,"padding_top":20,"margin_bottom":20,"padding_bottom":20},"dc8df7e5-6027-4449-a038-4285ae85bfda",[627],{"_uid":628,"text":629,"button":637,"headline":638,"component":404},"fd00e09c-a35a-4da4-bcb6-0fb2b9f04034",{"type":44,"attrs":630,"content":631},{"backgroundColor":46},[632],{"type":49,"attrs":633,"content":634},{"textAlign":46},[635],{"text":636,"type":54},"PTFE, polytetrafluoroethylene, is a fluoropolymer with very high chemical resistance, a low coefficient of friction and a very smooth surface. In sealing technology it is used both as a material in its own right and in laminates with elastomers. In a laminate, PTFE takes the direct contact with the medium, while the elastomer provides elasticity and recovery.",[],[],"sb-page",[],-30,[],0,"a8170ec9-6127-4d45-99fc-0c66b330824c",[],[647,649,651],{"path":648,"name":152,"lang":195,"published":24},"materials",{"lang":650,"path":160,"name":158},"de",{"lang":650,"path":160,"name":158},[],[654,655],{"name":26,"id":27,"uuid":19,"slug":28,"url":29,"translated_name":30,"full_slug":31},{"name":146,"id":147,"uuid":143,"slug":148,"url":148,"translated_name":141,"full_slug":149},{"age":657,"cache-control":214,"connection":215,"content-encoding":216,"content-type":217,"date":658,"etag":659,"referrer-policy":220,"sb-be-version":221,"server":222,"strict-transport-security":223,"transfer-encoding":224,"vary":225,"via":226,"x-amz-cf-id":660,"x-amz-cf-pop":228,"x-cache":229,"x-content-type-options":230,"x-frame-options":231,"x-permitted-cross-domain-policies":232,"x-request-id":661,"x-runtime":662,"x-xss-protection":235},"4617","Tue, 20 Oct 2026 11:30:58 GMT","W\u002F\"48210c2fbfc557bba4322d9f72b6eb17\"","VVFn4ZVNbWKrSYJ3MrojkZ1QN8VhyqnwifXA_tYc77k5RjiGOjiUtA==","996b6cf4-d6ee-40bb-94e0-4a6933db0879","0.062630",[664],{"name":158,"created_at":240,"published_at":665,"updated_at":242,"id":159,"uuid":155,"content":666,"slug":160,"full_slug":160,"sort_by_date":46,"position":641,"tag_list":954,"is_startpage":41,"parent_id":643,"meta_data":46,"group_id":644,"first_published_at":665,"release_id":46,"lang":955,"path":46,"alternates":956,"default_full_slug":160,"translated_slugs":957},"2026-10-20T07:53:29.211Z",{"seo":667,"_uid":250,"body":671,"component":639,"page_information":953},[668],{"_uid":246,"component":247,"seo_title":669,"custom_slug":20,"robots_index":24,"seo_description":670},"Werkstoffe: Silikon, EPDM, NBR, FKM und mehr","22 Elastomer-Qualitäten in acht Gruppen, von Silikon bis FKM: Shore-Härte, Temperaturbereich und Nachweise wie FDA und DIN EN 681 im Überblick.",[672,680,766,783,831,862,874],{"_uid":253,"buttons":673,"headline":674,"settings":677,"component":268,"home_style":41,"description":679},[],[675],{"_uid":257,"element":258,"headline":676,"alignment":20,"component":260,"element_style":261},"Werkstoffe für Dichtungen und Halbzeug",[678],{"_uid":264,"hide":41,"component":265,"margin_top":20,"padding_top":266,"margin_bottom":20,"padding_bottom":267},"Acht Elastomergruppen, 22 Qualitäten: Wir bieten Werkstoffe mit Härten von 25 bis 85 Shore A und je nach Mischung für Temperaturen von −55 bis +275 °C. Erhältlich als Rollen, Platten, Folien, Zuschnitte und Formteile, je nach Ausführung von 0,3 bis 60 mm Dicke und bis 1.500 mm Breite. Passt keine Qualität zu Ihren Anforderungen, passen wir die Rezeptur an.",{"_uid":271,"lead":681,"button":682,"headline":685,"settings":688,"component":288,"card_style":289,"layout_style":290,"show_numbers":24,"features_list":690,"background_color":381},"Die Gruppe legt fest, gegen welche Medien und welche Temperaturen ein Werkstoff überhaupt arbeitet. Wie hart, wie kältefest und wie dick er dann ist, steht in der Qualität. Zu jeder Gruppe gehören eine bis zehn davon.",[683],{"_uid":275,"link":684,"label":146,"variant":33,"component":34},{"id":143,"url":20,"linktype":21,"fieldtype":22,"cached_url":148},[686],{"_uid":280,"element":281,"headline":687,"alignment":20,"component":260,"element_style":283},"Welche Gruppe für welche Aufgabe",[689],{"_uid":286,"hide":41,"component":265,"margin_top":20,"padding_top":287,"margin_bottom":20,"padding_bottom":287},[691,701,710,719,728,737,746,756],{"_uid":293,"text":692,"headline":700,"component":303},{"type":44,"attrs":693,"content":694},{"backgroundColor":46},[695],{"type":49,"attrs":696,"content":697},{"textAlign":46},[698],{"text":699,"type":54},"Zwei Qualitäten, 35 bis 65 Shore A, −45 bis +220 °C. Rolle und Platte, farbig einstellbar. Beide mit FDA-Nachweis, auch für wiederholten Kontakt mit Lebensmitteln.","Silikon (VMQ)",{"_uid":305,"text":702,"headline":314,"component":303},{"type":44,"attrs":703,"content":704},{"backgroundColor":46},[705],{"type":49,"attrs":706,"content":707},{"textAlign":46},[708],{"text":709,"type":54},"Zehn Qualitäten, 25 bis 75 Shore A, −55 bis +150 °C. Für Wasser, Dampf und Witterung. Zwei mit FDA-Nachweis, zwei nach DIN EN 681, Polymeranteil 100 % EPDM.",{"_uid":316,"text":711,"headline":325,"component":303},{"type":44,"attrs":712,"content":713},{"backgroundColor":46},[714],{"type":49,"attrs":715,"content":716},{"textAlign":46},[717],{"text":718,"type":54},"Drei Qualitäten, 55 bis 70 Shore A, −40 bis +125 °C. Ölbeständig. Eine ozonbeständig, eine für Transformatoren, Polymeranteil 100 % NBR.",{"_uid":327,"text":720,"headline":336,"component":303},{"type":44,"attrs":721,"content":722},{"backgroundColor":46},[723],{"type":49,"attrs":724,"content":725},{"textAlign":46},[726],{"text":727,"type":54},"Drei Qualitäten, 60 bis 75 Shore A, −20 bis +275 °C, bis 20 mm. Für aggressive Medien und Hitze. Eine mit FDA-Nachweis, Fluorgehalt 66 %. Fluorhaltig, also nicht PFAS-frei.",{"_uid":338,"text":729,"headline":347,"component":303},{"type":44,"attrs":730,"content":731},{"backgroundColor":46},[732],{"type":49,"attrs":733,"content":734},{"textAlign":46},[735],{"text":736,"type":54},"Eine Qualität, 65 bis 85 Shore A, −20 bis +150 °C. Ölbeständig wie NBR, mit mehr Reserve bei Temperatur und Alterung. Abnahme ab 500 kg.",{"_uid":349,"text":738,"headline":358,"component":303},{"type":44,"attrs":739,"content":740},{"backgroundColor":46},[741],{"type":49,"attrs":742,"content":743},{"textAlign":46},[744],{"text":745,"type":54},"Eine Qualität, 50 bis 60 Shore A, −30 bis +80 °C. Sehr gasdicht, deshalb dort verbaut, wo Gas nicht durch die Dichtung wandern darf.",{"_uid":360,"text":747,"headline":755,"component":303},{"type":44,"attrs":748,"content":749},{"backgroundColor":46},[750],{"type":49,"attrs":751,"content":752},{"textAlign":46},[753],{"text":754,"type":54},"Eine Qualität, 60 bis 70 Shore A, −40 bis +70 °C, weiß, mit FDA-Nachweis. Hohe Elastizität und sehr guter Widerstand gegen Abrieb.","Naturkautschuk (NR)",{"_uid":371,"text":757,"headline":765,"component":303},{"type":44,"attrs":758,"content":759},{"backgroundColor":46},[760],{"type":49,"attrs":761,"content":762},{"textAlign":46},[763],{"text":764,"type":54},"Eine Qualität, 50 bis 60 Shore A, −40 bis +70 °C. Haftet an Stahl, deshalb im laminierten Brückenlager. Beständig gegen Witterung und Salzwasser im Außenbau.","Chloropren (CR)",{"_uid":383,"settings":767,"component":387,"textblocks":769,"background_color":405},[768],{"_uid":386,"hide":41,"component":265,"margin_top":20,"padding_top":287,"margin_bottom":20,"padding_bottom":267},[770],{"_uid":390,"text":771,"button":779,"headline":780,"component":404},{"type":44,"attrs":772,"content":773},{"backgroundColor":46},[774],{"type":49,"attrs":775,"content":776},{"textAlign":46},[777],{"text":778,"type":54},"Für sechs unserer Qualitäten liegt ein FDA-Nachweis für den Lebensmittelkontakt vor, zwei entsprechen der DIN EN 681 für Rohrleitungsdichtungen. 19 der 22 Qualitäten sind frei von per- und polyfluorierten Verbindungen, für 21 stehen Datenblätter bereit. Welche zusätzlichen Nachweise Ihr Markt erfordert, klären wir vor Ihrer ersten Bestellung.",[],[781],{"_uid":402,"element":281,"headline":782,"alignment":20,"component":260,"element_style":283},"Nachweise für Ihre Werkstoffwahl",{"_uid":407,"lead":20,"button":784,"headline":785,"settings":788,"component":288,"card_style":418,"layout_style":419,"show_numbers":41,"features_list":790,"background_color":405},[],[786],{"_uid":411,"element":412,"headline":787,"alignment":20,"component":260,"element_style":414},"Was Sie bestellen können, und ab wann",[789],{"_uid":417,"hide":41,"component":265,"margin_top":20,"padding_top":267,"margin_bottom":20,"padding_bottom":287},[791,801,811,821],{"_uid":422,"text":792,"headline":800,"component":303},{"type":44,"attrs":793,"content":794},{"backgroundColor":46},[795],{"type":49,"attrs":796,"content":797},{"textAlign":46},[798],{"text":799,"type":54},"ab einer Rolle bestellbar","5 Qualitäten",{"_uid":433,"text":802,"headline":810,"component":303},{"type":44,"attrs":803,"content":804},{"backgroundColor":46},[805],{"type":49,"attrs":806,"content":807},{"textAlign":46},[808],{"text":809,"type":54},"bei den anderen, HNBR ab 500 kg","ab 10 Rollen",{"_uid":444,"text":812,"headline":820,"component":303},{"type":44,"attrs":813,"content":814},{"backgroundColor":46},[815],{"type":49,"attrs":816,"content":817},{"textAlign":46},[818],{"text":819,"type":54},"Dicke, je nach Gruppe","0,3 bis 60 mm",{"_uid":455,"text":822,"headline":830,"component":303},{"type":44,"attrs":823,"content":824},{"backgroundColor":46},[825],{"type":49,"attrs":826,"content":827},{"textAlign":46},[828],{"text":829,"type":54},"Breite bei Rolle und Platte","bis 1.500 mm",{"_uid":466,"cols":467,"headline":832,"services":835,"settings":860,"component":519},[833],{"_uid":470,"element":281,"headline":834,"alignment":20,"component":260,"element_style":472},"Vier Lieferformen aus denselben Rezepturen",[836,842,848,854],{"_uid":475,"icon":837,"text":839,"button":840,"headline":841,"component":484},{"id":477,"alt":478,"name":20,"focus":20,"title":20,"source":20,"filename":479,"copyright":20,"fieldtype":39,"meta_data":838,"is_external_url":41},{"alt":478,"title":20,"source":20,"copyright":20},"0,3 bis 60 mm, bis 1.500 mm breit. Auch als Hartgummi, Moosgummi, Zellkautschuk, mit Gewebeeinlage oder elektrisch leitfähig.",[],"Platte und Rolle",{"_uid":486,"icon":843,"text":845,"button":846,"headline":847,"component":484},{"id":488,"alt":489,"name":20,"focus":20,"title":20,"source":20,"filename":490,"copyright":20,"fieldtype":39,"meta_data":844,"is_external_url":41},{"alt":489,"size":492},"Ab 0,3 mm, für Dichtflächen und für Isolation. 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Dort, wo der Zuschnitt zu viel Verschnitt lässt.",[],"Formteil",[861],{"_uid":518,"hide":41,"component":265,"margin_top":20,"padding_top":287,"margin_bottom":20,"padding_bottom":267},{"_uid":521,"text":863,"button":864,"headline":868,"settings":871,"component":536,"contactperson":873},"Nennen Sie Medium, Temperatur und die Stelle im Bauteil. 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REACH bewerten wir qualitätsbezogen anhand der Rohstoff- und Lieferantendokumentation, der Rezepturinformationen und der jeweils aktuellen ECHA-Kandidatenliste. Wo erforderlich, sichern wir die RoHS-Konformität durch Prüfungen akkreditierter Labore ab.",[],[],{"_uid":574,"headline":900,"component":553,"contentbloks":901},"Was sagt die Shore-Härte aus?",[902],{"_uid":578,"settings":903,"component":387,"textblocks":905,"background_color":20},[904],{"_uid":581,"hide":41,"component":265,"margin_top":20,"padding_top":20,"margin_bottom":20,"padding_bottom":20},[906],{"_uid":584,"text":907,"button":915,"headline":916,"component":404},{"type":44,"attrs":908,"content":909},{"backgroundColor":46},[910],{"type":49,"attrs":911,"content":912},{"textAlign":46},[913],{"text":914,"type":54},"Die Shore-Härte beschreibt den Widerstand eines Elastomers gegen das Eindringen eines definierten Prüfkörpers. Bei technischen Elastomeren wird meist die Shore-A-Skala verwendet. 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