{"id":42,"date":"2013-05-27T08:59:58","date_gmt":"2013-05-27T08:59:58","guid":{"rendered":"https:\/\/syunite.com\/?p=42"},"modified":"2026-08-22T12:36:42","modified_gmt":"2026-08-22T12:36:42","slug":"si-o-ring","status":"publish","type":"post","link":"https:\/\/syunite.com\/?p=42","title":{"rendered":"SI O-ring"},"content":{"rendered":"<h1>Silicone O-Rings for Electronic, Food and Medical Applications<\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/syunite.com\/wp-content\/uploads\/2013\/05\/Silicone-O-Ring-300x300.jpg\" alt=\"Silicone O-Ring Manufacturer - SI O-rings for electronic and food-grade sealing\" width=\"300\" height=\"300\" \/><\/p>\n<h2>Product Overview<\/h2>\n<p>Shiny Unite manufactures silicone (SI) O-rings, widely used for sealing electronic products, auto parts, electrical appliances and machinery. Silicone O-rings are durable and heatproof, and are a common choice where a wide temperature range and good ozone resistance are required.<\/p>\n<h2>Material &amp; Construction<\/h2>\n<p>Our silicone O-rings are moulded from silicone rubber and are available in a hardness range of 34 to 78 Shore A, with a service temperature range of -100&deg;C to 250&deg;C. Silicone offers excellent water and ozone resistance and good acid resistance. Special compounds can be supplied, including FDA, NSF and WRAS grades for food and potable-water applications.<\/p>\n<h2>Applications<\/h2>\n<ul>\n<li>Electronic products and electrical appliances<\/li>\n<li>Auto parts<\/li>\n<li>Fluid systems (static sealing)<\/li>\n<li>Food-grade applications<\/li>\n<li>Water media sealing<\/li>\n<li>Medical applications<\/li>\n<\/ul>\n<h2>Key Benefits<\/h2>\n<ul>\n<li>Excellent heat resistance up to 250&deg;C<\/li>\n<li>Excellent low-temperature flexibility down to -100&deg;C<\/li>\n<li>Excellent water and ozone resistance<\/li>\n<li>Available in FDA \/ NSF \/ WRAS special compounds<\/li>\n<\/ul>\n<h2>Customization &amp; Manufacturing<\/h2>\n<p>We produce silicone O-rings in custom sizes, hardness and colours to match your drawing or specification. For custom requirements, please send your dimensions or drawing for a quotation.<\/p>\n<h2>Technical Considerations<\/h2>\n<p>Silicone has poor tear and oil resistance compared with nitrile or fluorocarbon elastomers. For oil-sealing applications, NBR or FKM O-rings may be more suitable.<\/p>\n<h2>Related Products<\/h2>\n<ul>\n<li><a href=\"https:\/\/syunite.com\/?p=24\">NBR O-Rings<\/a> &ndash; general-purpose oil and fuel resistant sealing<\/li>\n<li><a href=\"https:\/\/syunite.com\/?p=31\">FKM O-Rings<\/a> &ndash; high-temperature and chemical-resistant sealing<\/li>\n<li><a href=\"https:\/\/syunite.com\/?p=52\">Custom O-Rings<\/a> &ndash; custom sizes, materials and hardness<\/li>\n<li><a href=\"https:\/\/syunite.com\/?p=45\">AS568 O-Rings<\/a> &ndash; standard imperial sizes with existing moulds<\/li>\n<\/ul>\n<h2>FAQ<\/h2>\n<h3>What material is a silicone O-ring made of?<\/h3>\n<p>Silicone rubber, an elastomer with excellent heat, cold, water and ozone resistance.<\/p>\n<h3>What is the temperature range of silicone O-rings?<\/h3>\n<p>Our silicone O-rings are rated from -100&deg;C to 250&deg;C.<\/p>\n<h3>Are food-grade silicone O-rings available?<\/h3>\n<p>Yes. FDA, NSF and WRAS grade silicone compounds can be supplied for food and potable-water applications.<\/p>\n<h3>Can you manufacture custom silicone O-rings?<\/h3>\n<p>Yes. We produce custom sizes, hardness and colours according to your drawing or specification.<\/p>\n<h3>What information is required for a quotation?<\/h3>\n<p>Please provide the inner diameter, cross-section diameter, required quantity, and the application or media to be sealed.<\/p>\n<p><a class=\"cta\" href=\"https:\/\/syunite.com\/?page_id=268\">Request a Quote<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Silicone O-Rings for Electronic, Food and Medical Applications Product Overview Shiny Unite manufactures silicone (SI) O-rings, widely used for sealing electronic products, auto parts, electrical appliances and machinery. Silicone O-rings are durable and heatproof, and are a common choice where a wide temperature range and good ozone resistance are required. Material &amp; Construction Our silicone [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":43,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[19],"class_list":["post-42","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rubber","tag-o-ring"],"views":1363,"_links":{"self":[{"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/posts\/42","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/syunite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=42"}],"version-history":[{"count":7,"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/posts\/42\/revisions"}],"predecessor-version":[{"id":971,"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/posts\/42\/revisions\/971"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/syunite.com\/index.php?rest_route=\/wp\/v2\/media\/43"}],"wp:attachment":[{"href":"https:\/\/syunite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/syunite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/syunite.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}