{"id":13596,"date":"2025-10-22T09:06:43","date_gmt":"2025-10-22T08:06:43","guid":{"rendered":"https:\/\/www.wood-finishes-direct.com\/blog\/?p=13596"},"modified":"2025-10-23T20:05:17","modified_gmt":"2025-10-23T19:05:17","slug":"which-stain-blocking-primer-is-best","status":"publish","type":"post","link":"https:\/\/www.wood-finishes-direct.com\/blog\/which-stain-blocking-primer-is-best\/","title":{"rendered":"Video &#8211; Stain Blocking Primers &#8211; Which is Best?"},"content":{"rendered":"\n<p>Are all stain blocking primers made equal?<\/p>\n\n\n\n<p>When dealing with old stains or discoloured surfaces, a standard undercoat often fails to cover problem areas. A dedicated stain-blocking primer is essential. We compared four leading water-based options  &#8211; \n<a href=\"https:\/\/www.wood-finishes-direct.com\/product\/ronseal-one-coat-stain-block\" target=\"_blank\">\nRonseal One Coat Stain Block<\/a>, \n<a href=\"https:\/\/www.wood-finishes-direct.com\/product\/dulux-trade-aqua-uniprimer\" target=\"_blank\">\nDulux Trade Aqua Uni Primer<\/a>, \n<a href=\"https:\/\/www.wood-finishes-direct.com\/product\/crown-trade-px4-all-purpose-primer\" target=\"_blank\">\nCrown Trade PX4<\/a>, and \n<a href=\"https:\/\/www.wood-finishes-direct.com\/product\/zinsser-bulls-eye-1-2-3\" target=\"_blank\">\nZinsser Bulls Eye 1-2-3<\/a>. Following a light sanding and a single coat application, one primer outperformed the others in terms of opacity and coverage. Watch to discover which product delivers the best base for a flawless top coat.<\/p>\n\n\n\n<script type=\"application\/ld+json\"> \n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"VideoObject\",\n  \"description\": \"If you've got a project covered in old stain or mystery marks, a standard undercoat won\u2019t hide it \u2013 you need a proper stain-blocking primer. We tested four popular water-based options: Ronseal One Coat Stain Block, Dulux Trade Aqua Uni Primer, Crown Trade PX4 and Zinsser Bulls Eye 1-2-3. After a light sand and single coat, one product clearly outperformed the rest for opacity. Watch the test and see which primer you should trust before painting.\",\n  \"embedUrl\": \"https:\/\/www.youtube.com\/embed\/CstPRZxoHPc\",\n  \"name\": \"Stain Blocking Primer Test. Which Is Best?\",\n  \"thumbnailUrl\": [\n    \"https:\/\/i.ytimg.com\/vi\/CstPRZxoHPc\/maxresdefault.jpg\"\n  ],\n  \"uploadDate\": \"2025-10-19T09:07:12-07:00\"\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Are all stain blocking primers made equal? When dealing with old stains or discoloured surfaces, a standard undercoat often fails to cover problem areas. A dedicated stain-blocking primer is essential. We compared four leading water-based options &#8211; Ronseal One Coat Stain Block, Dulux Trade Aqua Uni Primer, Crown Trade PX4, and Zinsser Bulls Eye 1-2-3. [&hellip;]<\/p>\n","protected":false},"author":42,"featured_media":13616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"video","meta":{"footnotes":""},"categories":[296,562],"tags":[],"class_list":["post-13596","post","type-post","status-publish","format-video","has-post-thumbnail","hentry","category-how-to-guides","category-videos","post_format-post-format-video"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Video - Stain Blocking Primers - Which is Best? - Wood Finishes Direct<\/title>\n<meta name=\"description\" content=\"Watch our comparison of Ronseal Onecoat Stain block, Dulux Trade Aqua, Uniprimer Crown trade PX4 and Zinza Bullseye 123.\" \/>\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.wood-finishes-direct.com\/blog\/which-stain-blocking-primer-is-best\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Video - Stain Blocking Primers - Which is Best? - Wood Finishes Direct\" \/>\n<meta property=\"og:description\" content=\"Watch our comparison of Ronseal Onecoat Stain block, Dulux Trade Aqua, Uniprimer Crown trade PX4 and Zinza Bullseye 123.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wood-finishes-direct.com\/blog\/which-stain-blocking-primer-is-best\/\" \/>\n<meta property=\"og:site_name\" content=\"Wood Finishes Direct\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/woodfinishesdirect\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-22T08:06:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-23T19:05:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wood-finishes-direct.com\/blog\/wp-content\/uploads\/2025\/10\/maxresdefault-11.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Erica D-B\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Erica D-B\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.wood-finishes-direct.com\/blog\/which-stain-blocking-primer-is-best\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.wood-finishes-direct.com\/blog\/which-stain-blocking-primer-is-best\/\"},\"author\":{\"name\":\"Erica D-B\",\"@id\":\"https:\/\/www.wood-finishes-direct.com\/blog\/#\/schema\/person\/db72ab4b32ba13861bb6f1a6dd707a18\"},\"headline\":\"Video &#8211; 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