{"id":18305,"date":"2024-07-02T08:00:22","date_gmt":"2024-07-02T06:00:22","guid":{"rendered":"https:\/\/www.mr-chemie.de\/contrasts-choosing-the-right-contrast-paint-for-the-mt-daylight-test\/"},"modified":"2024-10-30T13:13:58","modified_gmt":"2024-10-30T12:13:58","slug":"contrasts-choosing-the-right-contrast-paint-for-the-magnetic-particle-daylight-inspection","status":"publish","type":"post","link":"https:\/\/www.mr-chemie.de\/en\/contrasts-choosing-the-right-contrast-paint-for-the-magnetic-particle-daylight-inspection\/","title":{"rendered":"&#8220;Contrasts&#8221; &#8211; choosing the right contrast paint for the Magnetic Particle Daylight Inspection"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18305\" class=\"elementor elementor-18305 elementor-18288\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a7f881 elementor-section-full_width elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-section-height-default\" data-id=\"3a7f881\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;none&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div data-dce-background-color=\"#DB0F2F\" class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8fc6293\" data-id=\"8fc6293\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div data-dce-advanced-background-color=\"#ffffff\" class=\"elementor-element elementor-element-1848fb5 elementor-cta--layout-image-left elementor-cta--mobile-layout-image-above elementor-cta--valign-middle elementor-cta--skin-classic elementor-animated-content elementor-widget elementor-widget-call-to-action\" data-id=\"1848fb5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/Titelbild-768x1024.jpeg);\" role=\"img\" aria-label=\"Titelbild\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h5 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tWhy do I need a contrast paint:\t\t\t\t\t<\/h5>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\t<p><i> <span style=\"font-size: small\">by T. Elias, Technical Sales Manager, MR Chemie<\/span><\/i><\/p><br>\n<p style=\"margin: 0cm\">The main criterion for deciding to use a background color is usually insufficient contrast formation between the workpiece surface to be tested and the magnetic particles in the test equipment used. However, as is often the case in NDT, it is precisely these contrasts that enable us to reliably evaluate our tests.So what else is there to say about contrast paint? Quite a lot!<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-44db3d4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"44db3d4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cccdb5c\" data-id=\"cccdb5c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e191106 elementor-widget elementor-widget-heading\" data-id=\"e191106\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The individual requirements for a contrast paint:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c776bff elementor-widget elementor-widget-text-editor\" data-id=\"c776bff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin: 0cm;\"><span style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif;\">In addition to the time factor due to the additional work step and the cost factor &#8211; including the post-processing of the test pieces using cleaners, for example &#8211; the required drying time, temperature resistance and covering power are often mentioned as further criteria when using contrast paints.<b><u> <\/u><\/b>Employee protection due to hazardous or odor-tainting ingredients and the environmental compatibility of the products are also always discussed.<b><u> <\/u><\/b>All of the points mentioned here are undoubtedly justified and have been used by us, among others, as an opportunity to adapt our contrast paints to a large number of test requirements and internal company regulations.<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f38a247 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f38a247\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d3267f9\" data-id=\"d3267f9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-462096d elementor-widget elementor-widget-spacer\" data-id=\"462096d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f844ea9 elementor-widget elementor-widget-heading\" data-id=\"f844ea9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The alternatives:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90ebd46 elementor-widget elementor-widget-text-editor\" data-id=\"90ebd46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin: 0cm;\"><span style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif;\">First of all, unfortunately we don&#8217;t have one for all cases. But with our wide range of contrast paints, we are well equipped for these and other problems. If, for example, you need to carry out a component test above 100 \u00b0C, our MR\u00ae 72 undercoat paint is also ideal for this. It offers short drying times, as does our MR\u00ae 72 LS, which can also be easily welded over up to a layer thickness of approx. 30\u00b5m (see also test report no. 13090 from SLV Berlin) and can also be painted over. If you would like to save yourself the additional work step of a more time-consuming subsequent cleaning, our MR\u00ae 727 could be the right product of choice, as it is easy to wipe off. Odour nuisance, which is of course always perceived individually, can be minimized with our MR\u00ae 72 AF variant (AF = acetone-free) or MR\u00ae 725 and MR\u00ae 726. High covering power is also achieved with our MR\u00ae 72 TF, which does not contain titanium dioxide. And last but not least, our MR\u00ae 721 is also available as an environmentally friendly, water-based alternative. In addition, we often offer a choice of application method, as most products are available in an aerosol can or in a container. Of course, we also offer a solid selection of accessories for our container variants, such as suitable spray guns and paint spray guns.<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d91d9b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d91d9b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-372db16\" data-id=\"372db16\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6fb4132 dce_masking-none elementor-widget elementor-widget-image\" data-id=\"6fb4132\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/ohne-Untergrundfarbe-mit-Kringel-768x1024.png\" class=\"attachment-large size-large wp-image-18363\" alt=\"\" srcset=\"https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/ohne-Untergrundfarbe-mit-Kringel-768x1024.png 768w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/ohne-Untergrundfarbe-mit-Kringel-225x300.png 225w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/ohne-Untergrundfarbe-mit-Kringel-1152x1536.png 1152w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/ohne-Untergrundfarbe-mit-Kringel.png 1500w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 1: Low color contrast between surroundings and crack area without the use of contrast paint<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2f302b0\" data-id=\"2f302b0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a3f33e8 dce_masking-none elementor-widget elementor-widget-image\" data-id=\"a3f33e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/mit-Untergrundfarbe-mit-Kringel-768x1024.png\" class=\"attachment-large size-large wp-image-18365\" alt=\"\" srcset=\"https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/mit-Untergrundfarbe-mit-Kringel-768x1024.png 768w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/mit-Untergrundfarbe-mit-Kringel-225x300.png 225w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/mit-Untergrundfarbe-mit-Kringel-1152x1536.png 1152w, https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2024\/06\/mit-Untergrundfarbe-mit-Kringel.png 1500w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 2: High color contrast between surroundings and crack area through the use of contrast paint<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1072a70 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1072a70\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c462aeb\" data-id=\"c462aeb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-461c092 elementor-widget elementor-widget-spacer\" data-id=\"461c092\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5bd43db elementor-widget elementor-widget-heading\" data-id=\"5bd43db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5482f73 elementor-widget elementor-widget-text-editor\" data-id=\"5482f73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin: 0cm;\"><span style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif;\">For all those who cannot do without a contrast paint, we offer complex solutions for the most gentle but safe and effective MT daylight testing possible. Certainly not all aspects have been covered in this article, but perhaps we have been able to provide some suggestions and your interest has been aroused. If so, please feel free to share your experiences or specific requirements with us and let us work together to find the right solution for you.<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38a60d9 elementor-widget elementor-widget-spacer\" data-id=\"38a60d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8a0ee2e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8a0ee2e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18fa4f5\" data-id=\"18fa4f5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2ebb5d5 elementor-widget elementor-widget-spacer\" data-id=\"2ebb5d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0cd09c elementor-widget elementor-widget-heading\" data-id=\"d0cd09c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Your contact<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-184eb26 elementor-widget elementor-widget-author-box\" data-id=\"184eb26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"author-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-author-box\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/in\/thomas-elias-1a5bb6227\/\" class=\"elementor-author-box__avatar\">\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.mr-chemie.de\/wp-content\/uploads\/2022\/09\/Thomas-1-200x300.jpg\" alt=\"Picture of Thomas Elias\" loading=\"lazy\">\n\t\t\t\t<\/a>\n\t\t\t\n\t\t\t<div class=\"elementor-author-box__text\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/in\/thomas-elias-1a5bb6227\/\">\n\t\t\t\t\t\t<h4 class=\"elementor-author-box__name\">\n\t\t\t\t\t\t\tThomas Elias\t\t\t\t\t\t<\/h4>\n\t\t\t\t\t<\/a>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-author-box__bio\">\n\t\t\t\t\t\t<p>Technical Sales Manager<\/p>\n<p>0151 23770679<br \/>\nt.elias@mr-chemie.de<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5f2bba elementor-widget elementor-widget-spacer\" data-id=\"a5f2bba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-91f4e1d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"91f4e1d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-23c6284\" data-id=\"23c6284\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The main criterion for deciding to use a background color is usually insufficient contrast formation between the workpiece surface to be tested and the magnetic particles in the test equipment used. However, as is often the case in NDT, it is precisely these contrasts that enable us to reliably evaluate our tests. So what else is there to say about contrast paint? Quite a lot!<\/p>\n","protected":false},"author":16,"featured_media":18365,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[201],"tags":[],"class_list":["post-18305","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mr-learn-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>&quot;Contrasts&quot; - choosing the right contrast paint for the Magnetic Particle Daylight Inspection - MR Chemie<\/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.mr-chemie.de\/en\/contrasts-choosing-the-right-contrast-paint-for-the-magnetic-particle-daylight-inspection\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"&quot;Contrasts&quot; - choosing the right contrast paint for the Magnetic Particle Daylight Inspection - MR Chemie\" \/>\n<meta property=\"og:description\" content=\"The main criterion for deciding to use a background color is usually insufficient contrast formation between the workpiece surface to be tested and the magnetic particles in the test equipment used. 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