{"title":"Marking Tools","description":"\u003cp\u003eIndustrial marking tools for steel, iron, concrete, pipe, wood, and plastic. We carry oil-based paint markers from \u003ca href=\"https:\/\/usmadesupply.com\/companies\/u-mark\" target=\"_self\" rel=\"noopener noreferrer\"\u003eU-Mark\u003c\/a\u003e, solid paint markers, valve-action markers, and specialty markers built for jobsites. Every marker is made in the USA with an aluminum barrel and a precision valve for consistent flow on rough, rusty, oily, and outdoor surfaces where standard markers fail.\u003c\/p\u003e\u003ch3\u003eWhich marker for which surface\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSurface\u003c\/th\u003e\n\u003cth\u003eBest marker type\u003c\/th\u003e\n\u003cth\u003eWhy\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot-rolled steel with mill scale, oil, or rust\u003c\/td\u003e\n\u003ctd\u003eSolid paint marker (crayon-style)\u003c\/td\u003e\n\u003ctd\u003eWrites through contamination without cleaning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe (steam, chilled water, gas, process)\u003c\/td\u003e\n\u003ctd\u003eOil-based valve-action paint marker\u003c\/td\u003e\n\u003ctd\u003ePermanent, weather-resistant, A13.1 color-coded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConcrete, timber, rebar\u003c\/td\u003e\n\u003ctd\u003eOil-based paint marker, broad tip\u003c\/td\u003e\n\u003ctd\u003eVisible at distance; survives weather\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless food equipment\u003c\/td\u003e\n\u003ctd\u003eRemovable or low-halogen paint marker\u003c\/td\u003e\n\u003ctd\u003eAvoids chloride stress-corrosion cracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold concrete below freezing\u003c\/td\u003e\n\u003ctd\u003eLow-temp solid paint marker\u003c\/td\u003e\n\u003ctd\u003eRated for sub-zero application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eBy application\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePipe and valve identification\u003c\/strong\u003e under ANSI\/ASME A13.1 is the most common industrial use, color-coded by hazard class with flow-direction arrows. Oil-based valve-action markers hold up on hot steam lines, insulated chilled water, buried utility marking, and exposed pipe runs in plants and refineries.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSteel fabrication and weld layout\u003c\/strong\u003e uses solid paint markers that write through mill scale, oil film, and light rust. Marks survive preheat and post-weld cleanup, so fabricators don't re-layout after grinding.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eJobsite and construction layout\u003c\/strong\u003e covers stud marking, framing, surveying reference, rebar ID, and concrete form marking. Multiple colors enable color-coded layout and hazard identification, and weather-resistant pigment holds up for months on exposed concrete and timber.\u003c\/p\u003e\u003ch3\u003eWhat is the difference between an oil-based paint marker and a solid paint marker?\u003c\/h3\u003e\u003cp\u003eOil-based paint markers have a liquid paint reservoir and a valve-action tip that dispenses pigment under pressure. They produce a smooth, glossy line and work on most surfaces including smooth metal and plastic. Solid paint markers are a compressed crayon of pigment, wax, and oil. They write like a grease pencil and cut through rust, scale, oil, and moisture that would clog a liquid marker. Fabricators typically use solid markers on raw steel and oil markers on finished or coated surfaces.\u003c\/p\u003e\u003ch3\u003eWill paint markers stick to rusty or oily steel?\u003c\/h3\u003e\u003cp\u003eSolid paint markers are designed for this. They physically deposit pigment by abrasion, so surface contamination doesn't prevent marking. Liquid oil-based markers also hold up well on lightly oiled or mill-scaled steel but may skip on heavy grease. For the worst surfaces, use a solid marker.\u003c\/p\u003e\u003ch3\u003eAre paint markers acceptable for ANSI\/ASME A13.1 pipe color coding?\u003c\/h3\u003e\u003cp\u003eYes. Paint markers are a standard method for applying A13.1 identification legends and flow-direction arrows to pipe. A13.1 specifies colors and label positions but not the marking medium, so either paint markers or pre-printed adhesive labels satisfy the standard. Paint markers are generally preferred in hot or insulated applications where adhesive labels can lift.\u003c\/p\u003e\u003ch3\u003eHow long do exterior paint marker marks last?\u003c\/h3\u003e\u003cp\u003eOil-based pigment on a clean, primed surface typically holds six months to two years in direct sun and weather before fading. On rough concrete and timber, the marks embed into the surface and last longer. For temporary layout marks you want to remove later, use a water-based or removable marker.\u003c\/p\u003e","products":[{"product_id":"100p-fine-line-industrial-paint-marker-yellow-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Yellow","description":"\u003cp\u003eThis box contains 12 high-performance industrial paint markers designed for precision marking. Featuring a valve-activated system, the markers deliver smooth paint flow from a durable aluminum barrel with an airtight cap built to endure demanding industrial environments. The oil-based, yellow paint offers excellent outdoor longevity, UV resistance, and adheres reliably to rusty or oily metals. Suitable for surfaces such as wood, glass, plastics, rubber tape, and concrete, these markers are ideal for automotive shops, recyclers, and surveyors. Each marker measures 5.69\" long with a drying time of approximately 45 seconds, operating effectively between -50° and 150°F.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Yellow (12\/box)","offer_id":44022797828273,"sku":"r\u0026r|UMARK10206FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL-Yellow_10206FL.jpg?v=1757829772"},{"product_id":"a30-broad-tip-paint-marker-red-6box","title":"U-Mark A30 Broad Tip Paint Marker – Red (6\/box)","description":"\u003cp\u003eThese broad-tip markers deliver wider, more visible lines, perfect for signs, large surfaces, and packaging. Equipped with a quick-draw belt holster featuring an integrated cap, they enable one-handed operation without the need to recap. Constructed with a robust 3\/4″ aluminum barrel and utilizing the patented Megaflow™ valve (US Patent No: 7,182,541 B1), these markers offer consistent, smooth paint flow. The sturdy tip resists wear and tear.\u003c\/p\u003e\n\u003cp\u003eAvailable only in boxes of 6.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"A30 Broad Tip Paint Marker – Red (6\/box)","offer_id":44022799499441,"sku":"r\u0026r|UMARK10304","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/A30_Red_10304.jpg?v=1758687866"},{"product_id":"a30-broad-tip-paint-marker-black-6box","title":"U-Mark A30 Broad Tip Paint Marker – Black (6\/box)","description":"\u003cp\u003eThe U-Mark A30 Broad Tip Paint Marker produces wider strokes for enhanced visibility and improved legibility. Perfect for marking signs, large surfaces, and packaging materials. Its quick-draw belt holster features an integrated cap, enabling one-handed use without the need to recap. Built with a robust 3\/4″ diameter aluminum barrel and patented Megaflow™ valve (US Patent No: 7,182,541 B1), it delivers a consistent, smooth paint flow. The sturdy tip withstands wear and abrasion.\u003c\/p\u003e\n\u003cp\u003eAvailable in packs of 6 markers, sold by the box.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"A30 Broad Tip Paint Marker – Black (6\/box)","offer_id":44022799892657,"sku":"r\u0026r|UMARK10301","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/A30_Black_10301.jpg?v=1758687874"},{"product_id":"100p-fine-line-industrial-paint-marker-blue-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Blue","description":"\u003cp\u003eThis box contains 12 U-Mark 100P Fine Line Industrial Paint Markers in blue, sold only by the box. Each marker delivers high-performance oil-based paint through a precision valve for consistent flow. Constructed with a durable aluminum barrel and an airtight cap, these markers are built for tough industrial environments. The paint offers excellent outdoor longevity, UV resistance, and strong adhesion even on rusty or oily metals. Ideal for marking on diverse surfaces like wood, glass, plastics, rubber, cardboard, ceramics, and concrete, they are widely used by automotive shops, steel recyclers, and surveyors. Marking temperature range: -50° to 150° F; dries in approximately 45 seconds.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Blue (12\/box)","offer_id":44022800384177,"sku":"r\u0026r|UMARK10202FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL_Blue_10202FL.jpg?v=1757829274"},{"product_id":"100p-fine-line-industrial-paint-marker-white-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – White","description":"\u003cp\u003eThis box contains 12 U-Mark 100P Fine Line Industrial Paint Markers in white, sold exclusively as a full box. Designed for industrial settings, these markers feature high-performance oil-based paint delivered through a precision valve for consistent flow. The robust aluminum barrel and airtight cap ensure durability under tough conditions. The paint offers excellent UV resistance, exceptional outdoor longevity, and adheres reliably to rusty or oily metals. Ideal for marking on a wide range of surfaces including damp or dry wood, glass, plastics, rubber tape, ceramics, concrete, and more. Perfect for professionals in automotive repair, steel recycling, and surveying.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – White (12\/box)","offer_id":44022800482481,"sku":"r\u0026r|UMARK10205FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL-White_10205FL.jpg?v=1757829414"},{"product_id":"a30-broad-tip-paint-marker-yellow-6box","title":"U-Mark A30 Broad Tip Paint Marker – Yellow (6\/box)","description":"\u003cp\u003eBroader markings deliver enhanced visibility and improved readability, making these markers perfect for use on signs, large surfaces, and packaging. The quick-draw belt holster features an integrated cap, enabling one-handed operation without the need to replace the cap. Constructed with a rugged 3\/4\" diameter aluminum barrel and equipped with the Megaflow™ patented valve (US Patent No: 7,182,541 B1), it provides a consistent, smooth paint flow. The durable tip resists wear and abrasion.\u003c\/p\u003e\n\u003cp\u003eSold only in a box of 6 markers.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"A30 Broad Tip Paint Marker – Yellow (6\/box)","offer_id":44022800580785,"sku":"r\u0026r|UMARK10306","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/A30_Yellow_10306.jpg?v=1758687882"},{"product_id":"100p-fine-line-industrial-paint-marker-red-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Red","description":"\u003cp\u003eThis box contains 12 U-Mark 100P Fine Line Industrial Paint Markers in red. Each marker features a precision valve that delivers consistent, smooth paint flow suitable for heavy-duty industrial applications. The durable aluminum barrel paired with an airtight cap ensures longevity under demanding conditions. The oil-based paint offers excellent outdoor durability and UV resistance, adhering reliably to rusty or oily metals. Ideal for marking on various surfaces—including wood, glass, plastic, rubber, cardboard, ceramics, tiles, and concrete—these markers are trusted by automotive professionals, steel recyclers, and surveyors. Marking dries in approximately 45 seconds and performs in temperatures from -50° to 150° F.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Red (12\/box)","offer_id":44022800842929,"sku":"r\u0026r|UMARK10204FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL_Red_10204FL.jpg?v=1757829263"},{"product_id":"100p-fine-line-industrial-paint-marker-green-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Green","description":"\u003cp\u003eThe U-Mark 100P Fine Line Industrial Paint Marker in green delivers precision-applied, high-performance industrial paint via a valve mechanism for consistent flow. Its sturdy aluminum barrel and airtight cap are designed to withstand rigorous industrial conditions. The oil-based paint offers superior outdoor durability, UV resistance, and strong adhesion to rusty and oily metals. Suitable for marking a wide range of surfaces such as metals, wood, glass, plastics, and concrete, this marker is ideal for professionals in automotive, steel recycling, surveying, and auto repair sectors. Sold by the box (12).\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Green (12\/box)","offer_id":44022800744625,"sku":"r\u0026r|UMARK10203FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL-Green_10203FL.jpg?v=1757829804"},{"product_id":"100p-fine-line-industrial-paint-marker-orange-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Orange","description":"\u003cp\u003eThis box contains 12 U-Mark 100P Fine Line Industrial Paint Markers in orange, sold exclusively by the box. Each marker features a precision valve for consistent, smooth paint flow. Its heavy-duty aluminum barrel and airtight cap are designed for tough industrial environments. The oil-based paint offers excellent outdoor durability, UV resistance, and adheres effectively to rusty and oily metals. Ideal for marking on various surfaces including metal, wood, glass, plastics, rubber tape, cardboard, ceramics, and concrete. Commonly used by automotive and steel recyclers, surveyors, and auto repair shops. Markers measure 5.69\" x 0.56\" with a drying time of about 45 seconds and work in temperatures from -50° to 150°F.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Orange (12\/box)","offer_id":44022801531057,"sku":"r\u0026r|UMARK10207FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL_Orange_10207FL.jpg?v=1757828986"},{"product_id":"100p-fine-line-industrial-paint-marker-black-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Black","description":"\u003cp\u003eAvailable in boxes of 12 markers, sold only by the box. This marker features high-performance industrial paint delivered via a precision valve for consistent and smooth application. Constructed with a durable aluminum barrel and an airtight cap to handle tough industrial environments. The oil-based paint offers superior outdoor durability, UV resistance, and firmly adheres to rusty and oily metal surfaces. Suitable for marking on rusty and oily metals, dry or damp wood, glass, plastics, rubber tape, cardboard, waxed cartons, ceramics, tiles, concrete, and more. Ideal for automotive professionals, steel recyclers, surveyors, and auto repair shops.\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Black (12\/box)","offer_id":44022801760433,"sku":"r\u0026r|UMARK10201FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL_Black_10201FL.jpg?v=1757828822"},{"product_id":"100p-fine-line-industrial-paint-marker-silver-12box","title":"U-Mark 100P Fine Line Industrial Paint Marker – Silver","description":"\u003cp\u003eThe U-Mark 100P Fine Line Industrial Paint Marker is designed for reliable marking on surfaces including rusty and oily metals, dry or damp wood, glass, plastics, rubber tape, cardboard, waxed cartons, ceramics, tiles, and concrete. Its precision valve ensures a steady paint flow, while the durable aluminum barrel and airtight cap withstand tough industrial conditions. The oil-based paint is highly resistant to UV exposure and outdoor wear, adhering effectively to challenging surfaces. Widely used by automotive professionals, steel recyclers, surveyors, and auto repair shops. Available in boxes of 12 markers.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"100P Fine Line Industrial Paint Marker – Silver","offer_id":44022801891505,"sku":"r\u0026r|UMARK10210FL","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/100PFL_Silver_10210.jpg?v=1757826255"},{"product_id":"a30-broad-tip-paint-marker-white-6box","title":"U-Mark A30 Broad Tip Paint Marker – White (6\/box)","description":"\u003cp\u003eThese markers produce broader lines for improved clarity and easy readability, making them suitable for marking signs, large items, and packaging. The quick-draw belt holster features an integrated cap, enabling one-handed use without the need to remove the cap. Built with a sturdy 3\/4″ diameter aluminum barrel and fitted with the Megaflow™ patented valve (US Patent No: 7,182,541 B1), it delivers consistent, smooth paint application. The tip is designed to withstand abrasion for long-lasting durability.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eAvailable only in boxes of six markers (priced per box).\u003c\/p\u003e","brand":"U-Mark","offers":[{"title":"A30 Broad Tip Paint Marker – White","offer_id":44022802022577,"sku":"r\u0026r|UMARK10305","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/A30_White_10305.jpg?v=1758687890"}],"url":"https:\/\/shop.usmadesupply.com\/collections\/marking-tools.oembed","provider":"US Made Supply","version":"1.0","type":"link"}