{"id":18083,"date":"2025-06-25T11:12:52","date_gmt":"2025-06-25T11:12:52","guid":{"rendered":"https:\/\/www.qualtechproductsindustry.com\/iso-15191973-older-bend-test-cylindrical-mandrel-earlier-version-discuss-the-specific-use-and-purpose-you-can-write-extensively-about-what-a-particular-astm-test-method-is-designe\/"},"modified":"2025-10-19T18:40:18","modified_gmt":"2025-10-19T18:40:18","slug":"iso-1519","status":"publish","type":"post","link":"https:\/\/www.qualtechproductsindustry.com\/cy\/iso-1519\/","title":{"rendered":"ISO 1519:1973 (hyn) Prawf Plygu (Mandrel Cylindrog) \u2013 Deall ei R\u00f4l wrth Asesu Hyblygrwydd Cotio"},"content":{"rendered":"<p>Mae Profion Plygu ISO 1519:1973, a elwir hefyd yn brawf Mandrel Silindrog, wedi bod yn gonglfaen wrth werthuso hyblygrwydd cotio ers degawdau. Mae'r dull profi hwn yn penderfynu pa mor dda y mae paent, farnais, a chotiau tebyg yn gwrthsefyll cracio pan g\u00e2nt eu plygu o amgylch mandrels silindrog o ddimensiynau amrywiol. Gallwch asesu gallu cotio yn gyflym i wrthsefyll dadffurfiad heb ddifrod,\u2026 <\/p>\n<div class=\"pmpro\">\n<div class=\"pmpro_card pmpro_content_message\">\n<h2 class=\"pmpro_card_title pmpro_font-large\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"var(--pmpro--color--accent)\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"feather feather-lock\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\" ry=\"2\"><\/rect><path d=\"M7 11V7a5 5 0 0 1 10 0v4\"><\/path><\/svg>Mae Angen Aelodaeth o'r Casgliad Mewnwelediadau a Chomentar<\/h2>\n<div class=\"pmpro_card_content\">\n<p> Rhaid i chi fod yn aelod o Gasgliad Mewnwelediadau a Chomentrau i gael mynediad at y cynnwys hwn.<\/p>\n<p><a class=\"pmpro_btn\" href=\"https:\/\/www.qualtechproductsindustry.com\/cy\/membership-checkout\/?pmpro_level=1\">Ymuno nawr<\/a><\/p>\n<\/div>\n<div class=\"pmpro_card_actions pmpro_font-medium\">Yn aelod yn barod? <a href=\"https:\/\/www.qualtechproductsindustry.com\/cy\/login\/?redirect_to=https%3A%2F%2Fwww.qualtechproductsindustry.com%2Fcy%2Fiso-1519%2F\">Mewngofnodwch yma<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The ISO 1519:1973 Bend Test, also known as the Cylindrical Mandrel test, has been a cornerstone in evaluating coating flexibility for decades. This test method determines how well paint, varnish, and similar coatings resist cracking when bent around cylindrical mandrels of various diameters. You can quickly assess a coating&#8217;s ability to withstand deformation without damage,... <\/p>\n<div class=\"pmpro\"><div class=\"pmpro_card pmpro_content_message\"><h2 class=\"pmpro_card_title pmpro_font-large\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"var(--pmpro--color--accent)\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"feather feather-lock\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\" ry=\"2\"><\/rect><path d=\"M7 11V7a5 5 0 0 1 10 0v4\"><\/path><\/svg>Mae Angen Aelodaeth o'r Casgliad Mewnwelediadau a Chomentar<\/h2><div class=\"pmpro_card_content\"><p> Rhaid i chi fod yn aelod o Gasgliad Mewnwelediadau a Chomentrau i gael mynediad at y cynnwys hwn.<\/p><p><a class=\"pmpro_btn\" href=\"https:\/\/www.qualtechproductsindustry.com\/cy\/membership-checkout\/?pmpro_level=1\">Ymuno nawr<\/a><\/p><\/div><div class=\"pmpro_card_actions pmpro_font-medium\">Yn aelod yn barod? <a href=\"https:\/\/www.qualtechproductsindustry.com\/cy\/login\/?redirect_to=https%3A%2F%2Fwww.qualtechproductsindustry.com%2Fcy%2Fiso-1519%2F\">Mewngofnodwch yma<\/a><\/div><\/div><\/div>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","footnotes":""},"categories":[536,534],"tags":[],"class_list":["post-18083","post","type-post","status-publish","format-standard","hentry","category-iso","category-science","pmpro-level-required","pmpro-level-1","pmpro-no-access"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ISO 1519:1973 (older) Bend Test (Cylindrical Mandrel) - Understanding Its Role in Coating Flexibility Assessment - QUALTECH PRODUCTS INDUSTRY<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.qualtechproductsindustry.com\/cy\/iso-1519\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ISO 1519:1973 (older) Bend Test (Cylindrical Mandrel) - Understanding Its Role in Coating Flexibility Assessment - QUALTECH PRODUCTS INDUSTRY\" \/>\n<meta property=\"og:description\" content=\"The ISO 1519:1973 Bend Test, also known as the Cylindrical Mandrel test, has been a cornerstone in evaluating coating flexibility for decades. This test method determines how well paint, varnish, and similar coatings resist cracking when bent around cylindrical mandrels of various diameters. You can quickly assess a coating&#8217;s ability to withstand deformation without damage,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.qualtechproductsindustry.com\/cy\/iso-1519\/\" \/>\n<meta property=\"og:site_name\" content=\"QUALTECH PRODUCTS INDUSTRY\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-25T11:12:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-19T18:40:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/koala.sh\/api\/image\/v2-wvng6-rlbfe.jpg?width=1216&#x26;height=832&#x26;dream\" \/>\n<meta name=\"author\" content=\"QUALTECH PRODUCTS INDUSTRY Science &amp; Research\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"QUALTECH PRODUCTS INDUSTRY Science &amp; Research\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 munud\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.qualtechproductsindustry.com\\\/iso-1519\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.qualtechproductsindustry.com\\\/iso-1519\\\/\"},\"author\":{\"name\":\"QUALTECH PRODUCTS INDUSTRY Science &amp; 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