{"id":3312,"date":"2024-11-18T07:36:21","date_gmt":"2024-11-18T07:36:21","guid":{"rendered":"https:\/\/www.tengyusealant.com\/?p=3312"},"modified":"2024-11-23T08:05:05","modified_gmt":"2024-11-23T08:05:05","slug":"why-does-silicone-sealant-discolor","status":"publish","type":"post","link":"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/","title":{"rendered":"Why Does Silicone Sealant Discolor? You Must Know!"},"content":{"rendered":"<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_979342576\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_979342576 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2087283418\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"851\" height=\"315\" src=\"https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor.webp\" class=\"attachment-original size-original\" alt=\"why does silicone caulking discolor\" srcset=\"https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor.webp 851w, https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor-300x111.webp 300w, https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor-768x284.webp 768w, https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor-18x7.webp 18w, https:\/\/www.tengyusealant.com\/wp-content\/uploads\/2024\/11\/why-does-silicone-caulking-discolor-600x222.webp 600w\" sizes=\"(max-width: 851px) 100vw, 851px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_2087283418 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<p>Since silicone sealant has excellent high and low temperature resistance and weather resistance, it has been widely used in construction. However, we often encounter discoloration when using silicone sealant. This article will specifically analyze the causes and solutions of silicone sealant discoloration.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#1_Contact_with_rubber_and_other_materials\" >1. Contact with rubber and other materials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#2_Incompatibility_between_different_sealants\" >2. Incompatibility between different sealants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#3_The_substrate_is_not_clean\" >3. The substrate is not clean<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#4_Environmental_factors\" >4. Environmental factors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#5_The_quality_of_silicone_sealants_is_poor\" >5. The quality of silicone sealants is poor<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#How_to_avoid_silicone_sealants_discolor\" >How to avoid silicone sealants discolor?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#TNS721_One_Component_Silicone_Sealant_for_Curtain_Wall_Glass\" >TNS721 One Component Silicone Sealant for Curtain\u00a0Wall Glass\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#TNS731_Neutral_Weatherproof_Silicone_Sealant\" >TNS731 Neutral Weatherproof Silicone Sealant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.tengyusealant.com\/vi\/why-does-silicone-sealant-discolor\/#TNS771_Neutral_Silicone_Sealant_For_Windows_and_Doors_Installation\" >TNS771 Neutral Silicone Sealant For Windows and Doors Installation<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"1_Contact_with_rubber_and_other_materials\"><\/span><span style=\"font-size: 75%;\">1. Contact with rubber and other materials<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Silicone sealant discolor when it comes into direct contact with most rubbers (natural rubber, chloroprene rubber, EPDM rubber), which are widely used in curtain wall and door and window sealing (such as rubber strips, rubber pads, etc.).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Incompatibility_between_different_sealants\"><\/span><span style=\"font-size: 75%;\">2. Incompatibility between different sealants<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Different types of sealants cannot be mixed to use , which will affect each other and cause discoloration. For example, acid sealants will turn oxime sealants yellow, and the use of neutral oxime and neutral alcohol sealants at the same time will also cause yellowing.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_The_substrate_is_not_clean\"><\/span><span style=\"font-size: 75%;\">3. The substrate is not clean<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"4_Environmental_factors\"><\/span><span style=\"font-size: 75%;\">4. Environmental factors<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>This type of discoloration often occurs in neutral oxime sealants. The main reason for the discoloration is that the air contains acidic substances.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_The_quality_of_silicone_sealants_is_poor\"><\/span><span style=\"font-size: 75%;\">5. The quality of silicone sealants is poor<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Some manufacturers fill a large amount of white oil in silicone sealants. After the white oil evaporates, the sealant shrinks greatly, which often causes silicone sealant discolor and cracking of the glue seams.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_avoid_silicone_sealants_discolor\"><\/span><span style=\"font-size: 75%;\">How to avoid silicone sealants discolor?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1. Before construction, compatibility tests are necessary to ensure the compatibility of sealants with other materials. More compatible accessory materials can be selected, such as using silicone rubber products instead of rubber products to reduce the risk of yellowing.<\/p>\n<p>2. During construction, neutral sealants and acidic sealants must be used in isolation. Once neutral sealants encounter acidic substances, they will decompose to produce amine substances, which are easily affected by air oxidation and discoloration; during use, neutral sealants should be avoided from contact with corrosive environments such as acids and alkalis to ensure construction quality and effect.<\/p>\n<p>3. Choose sealants with guaranteed quality<\/p>\n<p>Tengyu chemical (longkou) Co. ,Itd is a professional supplier of sealants and adhesives in China with 12+ years of export experience, Integrate the Research &amp; Development, Quality Control, and Sales of Acrylic sealant, Silicone Sealant, Polyurethane Sealant, MS Sealant, Waterproofing Coating, Chemical Anchor Adheisve, Wood Glue, PU Foam, Anaerobic Adhesive, etc.<br \/>\nTengyu products engineers can provide sealant solutions for the project, including door and windows, curtain walls, IG glass, indoor decoration, bath and kitchen, etc.<\/p>\n<p>Here, we recommend the following sealants for you:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TNS721_One_Component_Silicone_Sealant_for_Curtain_Wall_Glass\"><\/span><a href=\"https:\/\/www.tengyusealant.com\/vi\/manufacturer\/one-component-curtain-wall-silicone-sealant\/\"><span style=\"font-size: 75%;\">TNS721 One Component Silicone Sealant for Curtain\u00a0Wall Glass\u00a0<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>TNS721 Siliocne sealant is a kind of Silicone Weatherproof Sealant with one component and neutral cured at room temperature, which has a excellent performance like strong adhesion, high strength, high elasticity, high modulus, strong ability to resist movement.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TNS731_Neutral_Weatherproof_Silicone_Sealant\"><\/span><a href=\"https:\/\/www.tengyusealant.com\/vi\/manufacturer\/neutral-weatherproof-silicone-sealant\/\"><span style=\"font-size: 75%;\">TNS731 Neutral Weatherproof Silicone Sealant<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>TNS731 Neutral Weatherproof Silicone Sealant is a one-part, durable, neutral- cure, architectural grade sealant. with excellent adhesion for use on a wide variety of materials in new or renovated weatherproofing applications. It cures into an elastic rubber body by reacting with moisture in the air to form an effective seal. Excellent weather resistance and load-bearing interface \u00b135% telescopic displacement.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TNS771_Neutral_Silicone_Sealant_For_Windows_and_Doors_Installation\"><\/span><a href=\"https:\/\/www.tengyusealant.com\/vi\/manufacturer\/waterproof-silicone-sealant-for-windows-and-doors-installation\/\"><span style=\"font-size: 75%;\">TNS771 Neutral Silicone Sealant For Windows and Doors Installation<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>TNS731 Neutral silicone sealant with high and low temperature resistant performance, remain performance constant within -40 \u00baC to 150 \u00baC. Suitable for all kinds of doors and windows glass installation, sealing and many other building and industrial applications.<\/p>","protected":false},"excerpt":{"rendered":"<p>Since silicone sealant has excellent high and low temperature resistance and weather resistance, it has been widely used in construction. However, we often encounter discoloration when using silicone sealant. This article will specifically analyze the causes and solutions of silicone sealant discoloration. 1. Contact with rubber and other materials Silicone sealant discolor when it comes[&#8230;..]\n","protected":false},"author":1,"featured_media":3383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3312","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Silicone Sealant Discolor: 5 Reasons and How to Prevent It<\/title>\n<meta name=\"description\" content=\"Tired of discoloration on silicone sealant when apply on curtain wall? 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