{"id":3333,"date":"2026-09-04T16:56:56","date_gmt":"2026-09-04T08:56:56","guid":{"rendered":"http:\/\/0"},"modified":"2026-09-04T10:14:34","modified_gmt":"2026-09-04T02:14:34","slug":"lsr-materials-choose-grade-by-function","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/de\/blog\/lsr-materials-choose-grade-by-function\/","title":{"rendered":"Welches LSR-Material erf\u00fcllt die tats\u00e4chliche Anforderung Ihres Bauteils?"},"content":{"rendered":"<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Auswahl <strong>LSR-Spritzgussmaterialien<\/strong> ist keine Frage der Auswahl des weichsten, klarsten oder am h\u00e4ufigsten verwendeten Silikons. Die Qualit\u00e4t muss zur Funktion des Bauteils, zum Substrat, das es ber\u00fchrt, zur Art der Aush\u00e4rtung und Sterilisierung sowie zu den Abnahmepr\u00fcfungen passen, die die Leistung nachweisen. Eine Materialentscheidung, die nur anhand der Datenblatt-Schlagzeile getroffen wird, kann sp\u00e4ter Probleme bei der Verbindung, der Druckverformungsr\u00fcckstellung, der Farbstabilit\u00e4t oder der Ma\u00dfhaltigkeit verursachen.<\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">F\u00fcr ein Projekt mit <a href=\"https:\/\/www.jcinjectionmolding.com\/de\/service\/liquid-silicone-rubber-lsr-molding\/\">Fl\u00fcssigsilikonkautschuk (LSR) Spritzguss<\/a>, beginnen Sie damit, die Produktanforderung in messbare Materialfunktionen zu \u00fcbersetzen. Dieser Artikel organisiert die Auswahl um diese Funktionen herum, sodass Qualit\u00e4t, Werkzeug und Prozess gemeinsam entwickelt werden k\u00f6nnen.<\/p>\n<h2 style=\"font-size: 28px;line-height: 2em\">Beginnen Sie mit der Funktion des Bauteils<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3355\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set.webp\" alt=\"LSR-functional-sample-set\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-functional-sample-set-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Eine Dichtung ben\u00f6tigt stabile Druckverformung und Dichtungsr\u00fcckstellung. Eine flexible Membran ben\u00f6tigt kontrollierte Durchbiegung und Rei\u00dffestigkeit. Ein Griff ben\u00f6tigt taktiles Gef\u00fchl, Abriebfestigkeit und eine vorhersehbare Verbindung zu seinem Substrat. Ein Fluidkontakt-Bauteil ben\u00f6tigt m\u00f6glicherweise Grenzwerte f\u00fcr Extrahierbares, Reinheit und Sterilisationsbelastung. Dies sind unterschiedliche Priorit\u00e4ten, auch wenn die Teile alle als Silikon beschrieben werden.<\/p>\n<table style=\"width: 100%;border-collapse: collapse;font-size: 18px;line-height: 1.8em\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #ccc;padding: 10px;text-align: left\">Funktion<\/th>\n<th style=\"border: 1px solid #ccc;padding: 10px;text-align: left\">Materialfragen<\/th>\n<th style=\"border: 1px solid #ccc;padding: 10px;text-align: left\">N\u00fctzliche Validierung<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Dichtung<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">H\u00e4rte, Druckverformungsrest, Chemikalienbelastung<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Leck- und Druckverformungsr\u00fcckstellungspr\u00fcfung<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Flex<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Rei\u00dffestigkeit, Dehnung, Erm\u00fcdungsverhalten<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Zyklus- und Zugpr\u00fcfung<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Verbund<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Substratkompatibilit\u00e4t und Aush\u00e4rtungschemie<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Sch\u00e4l-, Zug- oder Torsionspr\u00fcfung<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Erscheinungsbild<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Klarheit, Farbstabilit\u00e4t, Oberfl\u00e4chenbeschaffenheit<\/td>\n<td style=\"border: 1px solid #ccc;padding: 10px\">Definierter visueller Standard und Alterungspr\u00fcfung<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"font-size: 28px;line-height: 2em\">H\u00e4rte ist ein Konstruktionsparameter, keine Produktidentit\u00e4t<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3359\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test.webp\" alt=\"LSR-hardness-comparison-test\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-hardness-comparison-test-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Die Durometer-H\u00e4rte beeinflusst, wie ein Teil abdichtet, sich biegt, anf\u00fchlt und aus der Form l\u00f6st, aber die gleiche nominale H\u00e4rte kann sich in verschiedenen Geometrien unterschiedlich verhalten. Eine d\u00fcnne Lippe kann auch bei einer relativ festen Sorte nachgiebig sein, w\u00e4hrend ein dickes Pad aufgrund seines Querschnitts steif wirken kann. Geben Sie die tats\u00e4chliche Funktion, Kompression, Durchbiegung und R\u00fcckstellanforderung zusammen mit einem H\u00e4rtebereich an.<\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">\u00dcberpr\u00fcfen Sie, ob die Zug-, Dehnungs-, Rei\u00df-, Druckverformungs- und Temperaturdaten der Sorte unter Bedingungen erzeugt wurden, die f\u00fcr Ihr Teil relevant sind. Behandeln Sie ver\u00f6ffentlichte Werte als Vergleichsdaten, nicht als Zusage f\u00fcr jede geformte Geometrie. Das endg\u00fcltige Teil muss nach dem Prozess und einer eventuell erforderlichen Nachbehandlung getestet werden.<\/p>\n<h2 style=\"font-size: 28px;line-height: 2em\">Passen Sie die Aush\u00e4rtungschemie an Anwendung und Prozess an<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3348\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control.webp\" alt=\"LSR-cure-chemistry-control\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-cure-chemistry-control-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Platin-vernetztes LSR ist in anspruchsvollen Anwendungen \u00fcblich, aber die Wahl h\u00e4ngt dennoch von der Produktspezifikation ab. Aush\u00e4rtegeschwindigkeit, Formtemperatur, Pigmentsystem, Inhibitionsempfindlichkeit, Nachh\u00e4rtungsbedarf und Lagerbedingungen k\u00f6nnen das Prozessfenster beeinflussen. Halten Sie die Komponenten bis zum Dosieren und Mischen getrennt und dokumentieren Sie das gew\u00e4hlte Verh\u00e4ltnis und die Handhabungsbedingungen.<\/p>\n<ol style=\"font-size: 20px;line-height: 2em;padding-left: 2em\">\n<li>Best\u00e4tigen Sie die empfohlenen Aush\u00e4rte- und Lagerbedingungen des Lieferanten.<\/li>\n<li>\u00dcberpr\u00fcfen Sie alle Inhaltsstoffe oder Oberfl\u00e4chen, die die Aush\u00e4rtung hemmen k\u00f6nnen.<\/li>\n<li>Determine whether post-cure changes odor, volatiles, color, or dimensions.<\/li>\n<li>Validate cure state on the finished geometry rather than on a flat sample alone.<\/li>\n<\/ol>\n<h2 style=\"font-size: 28px;line-height: 2em\">Evaluate bonding as a system<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3384\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface.webp\" alt=\"LSR-substrate-bond-interface\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-substrate-bond-interface-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">When silicone is molded onto plastic, metal, glass, or another substrate, material choice is only one part of the bond. Surface energy, cleanliness, texture, geometry, primer use, cure temperature, and time all matter. A chemical bond may be strong under one condition but weak after humidity, heat, sterilization, or repeated flexing. A mechanical key, such as a hole, groove, or undercut, may provide a more robust load path when the design allows it.<\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Ask for bond data on the actual substrate and surface treatment. A supplier\u2019s generic compatibility chart can narrow the options, but it cannot replace testing on the final part. Keep the interface away from flash-prone edges and specify how bond coverage will be inspected.<\/p>\n<h2 style=\"font-size: 28px;line-height: 2em\">Separate medical, optical, and general-purpose requirements<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3358\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples.webp\" alt=\"LSR-grade-application-samples\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-grade-application-samples-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">A material selected for a general industrial seal should not be transferred to a fluid-contact or implant-related design without a new qualification review. Medical use can require controlled documentation and biological evaluation; optical use can require exceptional clarity and low visual distortion; electrical use may emphasize dielectric behavior and flame performance. Use the end-use specification to define which grade family is acceptable.<\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">Die <a href=\"https:\/\/www.jcinjectionmolding.com\/de\/about\/quality-control\/\">quality-control framework<\/a> is useful for linking lot identity and test records to the material decision. If the project needs controlled handling, review the <a href=\"https:\/\/www.jcinjectionmolding.com\/de\/about\/facility\/\">Produktionsumgebung<\/a> early so cleanliness and packaging expectations are included in the quote and validation plan.<\/p>\n<h2 style=\"font-size: 28px;line-height: 2em\">Use a short-list and a written down-select<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3364\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review.webp\" alt=\"LSR-material-downselect-review\" width=\"1672\" height=\"941\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review.webp 1672w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review-300x169.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review-1024x576.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review-768x432.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review-1536x864.webp 1536w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/09\/LSR-material-downselect-review-18x10.webp 18w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">A practical material review ends with a short-list of two or three candidate grades and a written reason for the selection. Record hardness, cure system, substrate compatibility, expected service environment, post-cure, color or clarity, documentation, and test plan. Then review whether the mold design, gate, venting, and process window support the chosen material.<\/p>\n<p style=\"font-size: 20px;line-height: 2em;text-align: left\">The best LSR grade is the one that meets the functional requirement with a controllable process and an evidence package appropriate to the product. A structured down-select prevents the common mistake of optimizing one property while quietly sacrificing sealing, adhesion, cleanliness, or long-term stability.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing LSR Injection Molding Materials is not a matter of selecting the softest, clearest, or most widely used silicone. The grade has to match the part\u2019s job, the substrate it touches, the way it will be cured and sterilized, and the acceptance tests that will prove performance. A material decision made only from a data-sheet [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3365,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3333","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/posts\/3333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/comments?post=3333"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/posts\/3333\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media\/3365"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media?parent=3333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/categories?post=3333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/tags?post=3333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}