{"id":8414,"date":"2026-08-03T09:22:24","date_gmt":"2026-08-03T08:22:24","guid":{"rendered":"https:\/\/www.abrasteel.com\/blog\/flap-discs-shipyards\/"},"modified":"2026-08-03T09:57:22","modified_gmt":"2026-08-03T08:57:22","slug":"flap-discs-shipyards","status":"publish","type":"post","link":"https:\/\/www.abrasteel.com\/en\/blog\/abrasive-discs\/flap-discs-shipyards\/","title":{"rendered":"Flap Discs for Shipyards in 2026"},"content":{"rendered":"<article style=\"width:100%;max-width:1040px;box-sizing:border-box;margin:0 auto;padding:0 0 clamp(48px,10vw,80px);color:#232323;font-family:Manrope,Arial,sans-serif;font-size:clamp(16px,4vw,18px);line-height:1.68;overflow-wrap:anywhere;word-break:break-word;\">\n<header style=\"padding:clamp(14px,4vw,18px) 0 clamp(22px,6vw,28px);border-bottom:1px solid #e8ebef;margin-bottom:24px;\">\n<p style=\"margin:0 0 10px;color:#cc0000;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;\">Abrasive discs<\/p>\n<p style=\"max-width:900px;margin:0;color:#555f66;font-size:clamp(17px,4.4vw,20px);line-height:1.58;\">A technical guide to <strong style=\"color:#111;font-weight:800;\">flap discs for shipyards<\/strong>: dressing hull and reinforcement welds before priming, working in confined spaces, and separating consumables between naval and stainless steel.<\/p>\n<\/header>\n<nav aria-label=\"Table of contents\" style=\"margin:0 0 30px;padding:clamp(16px,4vw,20px) clamp(16px,5vw,22px);background:#ffffff;border:1px solid #e8ebef;border-top:3px solid #023a51;\">\n<p style=\"margin:0 0 12px;color:#023a51;font-size:15px;font-weight:800;text-transform:uppercase;\">Table of contents<\/p>\n<ol style=\"margin:0 0 0 22px;padding:0;font-size:clamp(16px,4vw,17px);line-height:1.62;\">\n<li style=\"margin:0 0 5px;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#claves-astilleros-laminas\">7 criteria for choosing flap discs in shipyards<\/a><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#preparacion-soldadura-astilleros\">Weld preparation on hull and reinforcements before priming<\/a><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#errores-astilleros-laminas\">Common mistakes using flap discs on the slipway<\/a><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#productos-astilleros-laminas\">Abrasteel flap discs for shipyards<\/a><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#abrasteel-astilleros-laminas\">Abrasteel as a technical supplier for shipyards<\/a><\/li>\n<li style=\"margin:0;padding-left:4px;\"><a style=\"color:#023a51;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"#preguntas-frecuentes\">Frequently Asked Questions (FAQs)<\/a><\/li>\n<\/ol>\n<\/nav>\n<div style=\"margin:0 0 26px;\">\n<p style=\"margin:0 0 10px;\"><strong style=\"color:#111;font-weight:800;\">These are the 7 criteria we recommend reviewing:<\/strong><\/p>\n<ol style=\"margin:0 0 18px 24px;padding:0;\">\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Access in confined spaces: double bottom, bulkheads and tanks<\/strong><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Work at height, on the slipway and on scaffolding<\/strong><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Paint anchor profile required before priming<\/strong><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Separating consumables between naval and stainless steel<\/strong><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Exposure to salt air and constant humidity at the dock<\/strong><\/li>\n<li style=\"margin:0 0 5px;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Sequence with welding: dressing the bead before painting<\/strong><\/li>\n<li style=\"margin:0;padding-left:4px;\"><strong style=\"color:#111;font-weight:800;\">Continuity of supply through the drydocking window<\/strong><\/li>\n<\/ol><\/div>\n<p style=\"margin:0 0 18px;\">A weld bead is not ready for paint the moment it cools. Before priming, it needs dressing, blending into the surrounding plate, and finishing to a surface the paint can actually anchor to. That final pass on the <strong style=\"color:#111;font-weight:800;\">hull<\/strong>, reinforcements and bulkheads is the job of <strong style=\"color:#111;font-weight:800;\">flap discs for shipyards<\/strong>, and it is a different task from removing heavy burr or cutting plate.<\/p>\n<p style=\"margin:0 0 18px;\">The difficulty is not only the metal. Much of that weld dressing happens in <strong style=\"color:#111;font-weight:800;\">confined spaces<\/strong> such as the double bottom or ballast tanks, in forced positions with limited ventilation. Other passes are worked on the slipway, at height, on scaffolding, with the disc held in one hand while the other braces the body. The abrasive has to perform under those conditions, not just on a test bench.<\/p>\n<p style=\"margin:0 0 18px;\">Then there is the environment. The shipyard sits next to the water, with constant <strong style=\"color:#111;font-weight:800;\">salinity<\/strong> and humidity that speed up corrosion on any poorly protected surface. And one rule allows no exceptions: consumables for naval steel and for stainless steel are never shared, because an iron particle embedded in a stainless part can start a corrosion spot that only shows up months after handover.<\/p>\n<p style=\"margin:0 0 22px;\">This article focuses on that <strong style=\"color:#111;font-weight:800;\">pre-paint finishing<\/strong> stage, not on sectioning profiles or removing heavy burr. For those operations in the same sector, the reference is our content on <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/blog\/discos-abrasivos\/discos-corte-astilleros\/\">cutting discs for shipyards<\/a> and grinding discs for shipyards. If the work is on the weld bead itself, our guide on <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/blog\/guides-and-tutorials\/welding-flap-discs\/\">flap discs for welding<\/a> may also help, and for the full family, the parent content is <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/blog\/abrasive-discs\/abrasive-flap-discs-solutions-for-surface-treatment\/\">flap discs<\/a>.<\/p>\n<figure style=\"margin:24px 0 30px;padding:14px;background:#f9fafb;border:1px solid #e8ebef;\">\n    <img decoding=\"async\" style=\"display:block;width:100%;height:auto;aspect-ratio:3\/2;object-fit:cover;background:#ffffff;\" src=\"https:\/\/www.abrasteel.com\/images\/discos-laminas-destacada.webp\" alt=\"Abrasteel flap discs for weld dressing in shipyards\"><figcaption style=\"margin:10px 0 0;color:#555f66;font-size:15px;\">In shipyards, the flap disc prepares the surface so the paint can anchor, not just so it looks smooth.<\/figcaption><\/figure>\n<h2 id=\"claves-astilleros-laminas\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">7 criteria for choosing flap discs in shipyards<\/h2>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">1. Access in confined spaces: double bottom, bulkheads and tanks<\/h3>\n<p style=\"margin:0 0 16px;\">Much of the weld dressing on a ship is done inside <strong style=\"color:#111;font-weight:800;\">confined spaces<\/strong>: the double bottom, ballast tanks, watertight bulkheads. There, the disc has to fit the working gap, allow a short grip, and not throw so much dust that the operator has to step out every few minutes to ventilate. Machine size drives the choice more than it would in an open workshop.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">2. Work at height, on the slipway and on scaffolding<\/h3>\n<p style=\"margin:0 0 16px;\">A large part of the hull is dressed on the <strong style=\"color:#111;font-weight:800;\">slipway<\/strong>, on scaffolding or an elevated platform, with the operator holding the disc in one hand and the body in a forced position. Under those conditions, a light disc that does not vibrate excessively and keeps control even when the attack angle is off due to posture matters more than anything else.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">3. Paint anchor profile required before priming<\/h3>\n<p style=\"margin:0 0 16px;\">Naval paint does not grip well on a surface that is too smooth, nor on one full of deep marks. Dressing must leave a uniform <strong style=\"color:#111;font-weight:800;\">roughness profile<\/strong> that gives the primer mechanical anchorage, neither polished nor uneven. That detail decides whether the paint lasts as planned or fails ahead of schedule.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">4. Separating consumables between naval and stainless steel<\/h3>\n<p style=\"margin:0 0 16px;\">A single shipyard often mixes <strong style=\"color:#111;font-weight:800;\">naval steel<\/strong> plate with stainless elements such as handrails or ducting. Using the same disc on both materials transfers iron particles onto the stainless steel and triggers corrosion from cross-contamination weeks after handover. Separating references by material is not optional.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">5. Exposure to salt air and constant humidity at the dock<\/h3>\n<p style=\"margin:0 0 16px;\">The work happens next to the water, with constant <strong style=\"color:#111;font-weight:800;\">salinity<\/strong> and humidity. A consumable that degrades in storage humidity loses performance before its working life is up, and a poorly dressed surface starts oxidising almost before it gets its first coat of primer.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">6. Sequence with welding: dressing the bead before painting<\/h3>\n<p style=\"margin:0 0 16px;\">The flap disc always comes after the bead, never before: weld first, dress the transition between the <strong style=\"color:#111;font-weight:800;\">bead<\/strong> and the plate second, and only then paint. Skipping or reordering that step leaves proud edges that break the paint film on the first thermal cycle or the first load in service.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">7. Continuity of supply through the drydocking window<\/h3>\n<p style=\"margin:0;\">A <strong style=\"color:#111;font-weight:800;\">drydocking<\/strong> has a fixed sail-away date, and surface dressing cannot stop for lack of discs. Having a supplier that guarantees stock through the entire working window, with no shortages mid-shift, matters as much as the abrasive&#8217;s own performance.<\/p>\n<h2 id=\"preparacion-soldadura-astilleros\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">Weld preparation on hull and reinforcements before priming<\/h2>\n<p style=\"margin:0 0 16px;\">On a ship, pre-paint preparation is not a single process: it changes by area of the vessel. The <strong style=\"color:#111;font-weight:800;\">outer hull<\/strong> carries long weld runs and needs a uniform pass over a wide surface. Internal reinforcements and ribs concentrate short welds in tight angles. Watertight bulkheads combine long beads with limited access due to the confined space around them.<\/p>\n<p style=\"margin:0 0 16px;\">Knowing that difference stops you applying the same criterion to all three areas. The table below summarises the dominant demand and the selection criterion depending on where the <strong style=\"color:#111;font-weight:800;\">weld<\/strong> is dressed before priming.<\/p>\n<div style=\"overflow-x:auto;margin:24px 0;border:1px solid #e8ebef;\">\n<table style=\"width:100%;min-width:680px;border-collapse:collapse;background:#fff;\">\n<thead>\n<tr>\n<th style=\"padding:14px;background:#023a51;color:#fff;text-align:left;font-weight:800;border-bottom:1px solid #e8ebef;\">Area<\/th>\n<th style=\"padding:14px;background:#023a51;color:#fff;text-align:left;font-weight:800;border-bottom:1px solid #e8ebef;\">Dominant demand<\/th>\n<th style=\"padding:14px;background:#023a51;color:#fff;text-align:left;font-weight:800;border-bottom:1px solid #e8ebef;\">Selection criterion<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Outer hull<\/td>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Wide surface, finish uniformity.<\/td>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Steady progress, disc comfortable over long runs.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Reinforcements and ribs<\/td>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Tight angles, limited access.<\/td>\n<td style=\"padding:14px;border-bottom:1px solid #e8ebef;vertical-align:top;\">Compact disc, good control in narrow areas.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:14px;vertical-align:top;\">Bulkheads and tanks<\/td>\n<td style=\"padding:14px;vertical-align:top;\">Confined space, limited ventilation.<\/td>\n<td style=\"padding:14px;vertical-align:top;\">Low dust, small machine footprint.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Outer hull: uniformity over a wide surface<\/h3>\n<p style=\"margin:0 0 16px;\">Over long runs of <strong style=\"color:#111;font-weight:800;\">hull<\/strong>, an irregular pass leaves patches with more anchorage than others, and that shows up as an uneven paint thickness an inspector spots at a glance. Keeping a steady advance, without dwelling on one spot more than another, is what gives a homogeneous profile along the whole bead.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Reinforcements and ribs: control in tight angles<\/h3>\n<p style=\"margin:0 0 16px;\">Internal reinforcements concentrate short joints in corners and plate intersections where a large disc will not fit properly. There, <strong style=\"color:#111;font-weight:800;\">control<\/strong> matters more than working speed: a disc that allows short, precise passes without cutting into sound plate around the bead is what counts.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Bulkheads and confined spaces: ventilation and machine size<\/h3>\n<p style=\"margin:0 0 16px;\">Inside a tank or a double bottom, dust builds up fast and ventilation depends on a portable extractor. A disc that generates less fine particle, combined with a small machine that can move in the <strong style=\"color:#111;font-weight:800;\">working gap<\/strong>, cuts the number of trips out to ventilate and shortens the real dressing time.<\/p>\n<h2 id=\"errores-astilleros-laminas\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">Common mistakes using flap discs on the slipway<\/h2>\n<p style=\"margin:0 0 16px;\">The most serious mistake is sharing a disc between naval steel and stainless steel. Even if the abrasive looks clean, it carries iron particles that later cause corrosion on the stainless part, a failure that can surface under <strong style=\"color:#111;font-weight:800;\">warranty<\/strong> long after the ship is delivered.<\/p>\n<p style=\"margin:0 0 16px;\">Another common failure is accepting a dressing pass that is too smooth. When the goal is only to leave the weld free of visible marks, it is easy to over-polish and lose the <strong style=\"color:#111;font-weight:800;\">anchorage<\/strong> the primer needs, a defect that goes unnoticed until the paint starts lifting.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Dressing without adapting the disc to the confined space<\/h3>\n<p style=\"margin:0 0 16px;\">Entering a bulkhead or double bottom with the same machine used on open deck forces awkward postures and working blind into corners. Matching the size of the <strong style=\"color:#111;font-weight:800;\">disc<\/strong> and tool to the actual gap prevents incomplete dressing that only shows up at paint inspection.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Not planning stock for the drydocking window<\/h3>\n<p style=\"margin:0 0 16px;\">When a drydocking has a fixed sail-away date, running out of discs mid-shift for the crew stalls dressing work and puts the schedule at risk. Calculating expected consumption and securing <strong style=\"color:#111;font-weight:800;\">continuity of supply<\/strong> before starting avoids that stoppage.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Ignoring the effect of storage humidity<\/h3>\n<p style=\"margin:0 0 16px;\">Storing discs near the dock, exposed to humidity and salt air, degrades the backing before use. A consumable kept in poor storage conditions loses performance even though it looks new, and that invisible wear shows up as an <strong style=\"color:#111;font-weight:800;\">uneven<\/strong> finish partway through the shift.<\/p>\n<h3 style=\"margin:26px 0 8px;color:#023a51;font-size:clamp(20px,5.2vw,22px);line-height:1.25;font-weight:800;\">Skipping the order between weld and paint<\/h3>\n<p style=\"margin:0 0 16px;\">Starting to prime over a half-dressed area, or leaving dressing for later because of time pressure, forces rework or accepting a zone with less <strong style=\"color:#111;font-weight:800;\">anchorage<\/strong>. Weld, dress, then paint is an order that allows no shortcuts if the goal is paint that lasts.<\/p>\n<h2 id=\"productos-astilleros-laminas\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">Abrasteel flap discs for shipyards<\/h2>\n<div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:18px;margin:24px 0;\">\n<div style=\"border:1px solid #e8ebef;background:#fff;padding:16px;\"><img decoding=\"async\" style=\"display:block;width:100%;height:clamp(150px,44vw,185px);object-fit:contain;background:#f9fafb;margin:0 0 14px;\" src=\"https:\/\/www.abrasteel.com\/images\/disco-laminas-turbo-inox-abrasteel.jpg\" alt=\"Abrasteel Turbo Inox flap disc for stainless steel in shipyards\"><\/p>\n<h3 style=\"margin:0 0 8px;color:#023a51;font-size:clamp(19px,5vw,21px);line-height:1.25;font-weight:800;\">Turbo Inox flap disc<\/h3>\n<p style=\"margin:0 0 10px;color:#555f66;font-size:16px;line-height:1.55;\">Reference dedicated to stainless steel, with no <strong style=\"color:#111;font-weight:800;\">cross-contamination<\/strong> from naval steel.<\/p>\n<p style=\"margin:0;\"><a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/abrasive-discs\/blade-discs\/\">View family<\/a><\/p>\n<\/div>\n<div style=\"border:1px solid #e8ebef;background:#fff;padding:16px;\"><img decoding=\"async\" style=\"display:block;width:100%;height:clamp(150px,44vw,185px);object-fit:contain;background:#f9fafb;margin:0 0 14px;\" src=\"https:\/\/www.abrasteel.com\/images\/disco-laminas-heavy-duty-abrasteel.jpg\" alt=\"Abrasteel Heavy Duty flap disc for weld dressing on hull\"><\/p>\n<h3 style=\"margin:0 0 8px;color:#023a51;font-size:clamp(19px,5vw,21px);line-height:1.25;font-weight:800;\">Heavy Duty flap disc<\/h3>\n<p style=\"margin:0 0 10px;color:#555f66;font-size:16px;line-height:1.55;\">Built for long <strong style=\"color:#111;font-weight:800;\">hull<\/strong> runs and continuous work on the slipway.<\/p>\n<p style=\"margin:0;\"><a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/abrasive-discs\/blade-discs\/\">View family<\/a><\/p>\n<\/div>\n<div style=\"border:1px solid #e8ebef;background:#fff;padding:16px;\"><img decoding=\"async\" style=\"display:block;width:100%;height:clamp(150px,44vw,185px);object-fit:contain;background:#f9fafb;margin:0 0 14px;\" src=\"https:\/\/www.abrasteel.com\/images\/disco-laminas-zafir-abrasteel.jpg\" alt=\"Abrasteel Zafir flap disc for finishing in confined spaces\"><\/p>\n<h3 style=\"margin:0 0 8px;color:#023a51;font-size:clamp(19px,5vw,21px);line-height:1.25;font-weight:800;\">Zafir flap disc<\/h3>\n<p style=\"margin:0 0 10px;color:#555f66;font-size:16px;line-height:1.55;\">Compact format, useful on reinforcements and <strong style=\"color:#111;font-weight:800;\">confined spaces<\/strong>.<\/p>\n<p style=\"margin:0;\"><a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/abrasive-discs\/blade-discs\/\">View family<\/a><\/p>\n<\/div><\/div>\n<p style=\"margin:0 0 16px;\">The full range is on the <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/abrasive-discs\/blade-discs\/\">Abrasteel flap discs<\/a> page, ordered by material and performance. For the prior cutting and grinding stage in the same sector, check our content on <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/blog\/discos-abrasivos\/discos-corte-astilleros\/\">cutting discs for shipyards<\/a> and grinding discs for shipyards. You can also check the <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/wp-content\/uploads\/2022\/06\/Catalogo2017.pdf\">technical catalogue<\/a> to review formats and stock.<\/p>\n<h2 id=\"abrasteel-astilleros-laminas\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">Abrasteel as a technical supplier for shipyards<\/h2>\n<p style=\"margin:0 0 16px;\">At Abrasteel we work with shipyards and naval workshops that need a reliable consumable for the pre-paint finishing stage, not just a disc that removes material fast. The technical conversation starts with the <strong style=\"color:#111;font-weight:800;\">area<\/strong> of the ship: hull, reinforcement or bulkhead, the space available, and the finish the paint specification calls for.<\/p>\n<ul style=\"margin:0 0 16px 22px;padding:0;\">\n<li style=\"margin:0 0 8px;\">We help define references separated by material to avoid cross-contamination between naval steel and stainless steel.<\/li>\n<li style=\"margin:0 0 8px;\">We provide <strong style=\"color:#111;font-weight:800;\">stock<\/strong> and continuity of supply through the entire drydocking window.<\/li>\n<li style=\"margin:0 0 8px;\">We review disc format with your technical team based on the confined space or elevated area being worked.<\/li>\n<li style=\"margin:0;\">We advise on the finish needed so the naval paint gets proper <strong style=\"color:#111;font-weight:800;\">anchorage<\/strong>.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;\">If your shipyard combines dressing on hull, reinforcements and confined spaces within the same drydocking, we can help you organise consumables by area and material so separation does not rely solely on each operator&#8217;s judgement. You can reach us via <a style=\"color:#cc0000;font-weight:700;text-decoration:underline;text-underline-offset:3px;\" href=\"https:\/\/www.abrasteel.com\/en\/contact\/\">contact<\/a> to review your case.<\/p>\n<h2 id=\"preguntas-frecuentes\" style=\"margin:clamp(38px,9vw,54px) 0 18px;padding-bottom:10px;border-bottom:2px solid #e8ebef;color:#023a51;font-size:clamp(24px,6vw,30px);line-height:1.18;font-weight:700;\">Frequently Asked Questions (FAQs)<\/h2>\n<div style=\"margin:0 0 28px;border-top:1px solid #e8ebef;\">\n<details open style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">Why does a weld bead need dressing before painting in a shipyard?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">Because naval paint needs a roughness profile to anchor to. A bead left undressed has proud edges and sharp transitions the paint film cannot fully cover, and those spots fail first once the ship enters service.<\/p>\n<\/div>\n<\/details>\n<details style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">Can I use the same flap disc on naval steel and stainless steel?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">It is not recommended. Sharing a consumable between the two materials deposits iron particles on the stainless steel, which can start corrosion from cross-contamination weeks or months after handover. Keeping references separated by material is the safer approach.<\/p>\n<\/div>\n<\/details>\n<details style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">What finish does a naval surface need before priming?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">A uniform profile, neither mirror-polished nor marked with deep gouges, that gives the primer mechanical anchorage. The specific grit and disc type depend on each project&#8217;s paint specification; our guide on flap discs for welding covers that product-level detail.<\/p>\n<\/div>\n<\/details>\n<details style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">How do you dress a weld inside a double bottom or a tank?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">With a machine and disc small enough to fit the working gap, active auxiliary ventilation, and frequent breaks for the dust that builds up. The confined space drives the choice of equipment more than the material being dressed.<\/p>\n<\/div>\n<\/details>\n<details style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">What is the difference between dressing the outer hull and the internal reinforcements?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">The hull has long runs and needs steady progress to avoid patches with different anchorage. Reinforcements concentrate short welds in tight angles, where disc control matters more than working speed.<\/p>\n<\/div>\n<\/details>\n<details style=\"border-bottom:1px solid #e8ebef;background:#ffffff;\">\n<summary style=\"cursor:pointer;list-style-position:outside;padding:16px 0;color:#023a51;font-size:clamp(18px,4.8vw,21px);line-height:1.25;font-weight:800;\">How do I avoid running out of discs mid-drydocking?<\/summary>\n<div style=\"padding:0 0 16px;color:#232323;\">\n<p style=\"margin:0;\">By calculating expected consumption for the whole working window and confirming with the supplier that stock covers those days without shortages. A drydocking has a fixed sail-away date, and a stoppage for lack of consumable puts the entire schedule at risk.<\/p>\n<\/div>\n<\/details><\/div>\n<div data-abrasteel-sticky-cta=\"true\" aria-label=\"Abrasteel quick actions\" style=\"position:fixed;right:max(12px,env(safe-area-inset-right));bottom:max(12px,env(safe-area-inset-bottom));z-index:9999;width:min(260px,calc(100vw - 24px));max-height:calc(54vh - 24px);background:#ffffff;border:1px solid rgba(2,58,81,.16);box-shadow:0 18px 44px rgba(2,58,81,.20);overflow:auto;\">\n<div style=\"height:6px;background:linear-gradient(90deg,#cc0000 0%,#cc0000 38%,#023a51 38%,#023a51 100%);\"><\/div>\n<p><button type=\"button\" aria-label=\"Close notice\" onclick=\"this.closest('[data-abrasteel-sticky-cta]').style.display='none';\" style=\"position:absolute;top:10px;right:10px;z-index:2;width:32px;height:32px;border:1px solid #e8ebef;background:#ffffff;color:#023a51;font-size:18px;line-height:1;font-weight:800;cursor:pointer;\">x<\/button><\/p>\n<div style=\"padding:clamp(12px,3.5vw,16px) clamp(12px,3.5vw,16px) clamp(10px,3vw,14px);\">\n<p style=\"margin:0 0 6px;color:#cc0000;font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;\">Abrasteel support<\/p>\n<p style=\"margin:0 0 8px;color:#023a51;font-size:clamp(18px,4.8vw,20px);line-height:1.18;font-weight:800;\">Dressing welds in a shipyard?<\/p>\n<p style=\"margin:0 0 12px;color:#555f66;font-size:clamp(14px,4vw,16px);line-height:1.45;\">We help you separate consumables by area and material.<\/p>\n<\/div>\n<p><a style=\"display:block;padding:clamp(11px,3.2vw,13px) 14px;background:#cc0000;color:#fff;font-size:clamp(14px,3.8vw,15px);font-weight:800;text-align:center;text-decoration:none;\" href=\"https:\/\/www.abrasteel.com\/en\/contact\/\">Ask for technical advice<\/a><a style=\"display:block;padding:clamp(11px,3.2vw,13px) 14px;background:#000;color:#fff;font-size:clamp(14px,3.8vw,15px);font-weight:800;text-align:center;text-decoration:none;\" href=\"https:\/\/www.abrasteel.com\/wp-content\/uploads\/2022\/06\/Catalogo2017.pdf\" target=\"_blank\" rel=\"noopener\">Download catalogue<\/a><\/div>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>A guide to flap discs for shipyards: weld dressing before priming, confined-space access and separating consumables between naval and stainless steel.<\/p>\n","protected":false},"author":1,"featured_media":3061,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[178],"tags":[],"class_list":["post-8414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-abrasive-discs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/posts\/8414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/comments?post=8414"}],"version-history":[{"count":2,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/posts\/8414\/revisions"}],"predecessor-version":[{"id":8429,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/posts\/8414\/revisions\/8429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/media\/3061"}],"wp:attachment":[{"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/media?parent=8414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/categories?post=8414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.abrasteel.com\/en\/wp-json\/wp\/v2\/tags?post=8414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}