Strait-Line Hi-Visibility Marking Chalk Yellow 8oz - Irwin

Overview The Forge 8oz Yellow Chalk Line Refill is a fine-grade powdered chalk designed specifically for use with chalk line reels. The bright yellow colour provides excellent visibility on dark or light surfaces such as concrete, timber, brick, steel, and roofing materials, creating crisp, accurate marking lines. Supplied in a sturdy 8oz (approximately 227g) plastic bottle with a twist-to-open cap and precision nozzle, it allows for easy, controlled pouring and mess-free refilling of chalk line reels. This reliable refill is perfect for tradies who need highly visible, long-lasting marks during bricklaying, tiling, framing, roofing, flooring, or general construction layout work. Why You’ll Love It Bright yellow colour delivers strong contrast and high visibility on most surfaces 8oz bottle with twist-to-open cap and nozzle for easy, controlled pouring Fine powder flows smoothly into chalk line reels with minimal clogging Built for Real Work Forge chalk refill is formulated to produce sharp, durable lines that stand out clearly and resist blowing away in wind or fading too quickly on the jobsite. The fine texture ensures smooth dispensing from standard chalk line reels, while the robust bottle protects the powder from moisture and makes refilling quick and clean. It’s straightforward, jobsite-proven gear suited to Aussie construction, carpentry, roofing, and masonry work — ideal for snapping accurate guide lines for brick courses, floor layouts, roof trusses, or any task where you need a clear, reliable mark that helps you work faster and more accurately. Perfect For Bricklayers, carpenters, roofers, tilers, and framers marking straight lines on concrete, timber, or steel Builders and tradies needing high-visibility marks for layout, cutting, or alignment tasks

Overview Medalist White Chalk Line Refill is a high-quality, fine-grade chalk powder designed for use in chalk line reels. The bright white colour provides excellent visibility on dark surfaces such as concrete, timber, brick, and steel, making it ideal for marking straight, accurate lines on building sites. Supplied in a convenient squeeze bottle with a precision nozzle, it allows easy, mess-free filling of chalk line reels without waste or spillage. This reliable refill is a must-have for tradies who need crisp, long-lasting marks that stand out clearly during bricklaying, tiling, framing, roofing, or general construction work. Why You’ll Love It Bright white colour delivers excellent contrast and visibility on most surfaces Convenient squeeze bottle with precision nozzle for clean, controlled refilling Fine powder flows smoothly into chalk line reels with minimal clogging Built for Real Work Medalist chalk line refill is formulated to produce sharp, highly visible lines that resist blowing away in wind or fading too quickly on site. The fine texture ensures smooth dispensing from standard chalk line reels, while the durable plastic bottle protects the powder from moisture and makes refilling quick and easy. It’s straightforward, jobsite-proven gear suited to Aussie construction, carpentry, and masonry work — perfect for snapping accurate guide lines for brick courses, floor layouts, roof trusses, or any task where you need a clear, reliable mark that helps you work faster and more accurately. Perfect For Bricklayers, carpenters, tilers, and framers marking straight lines on concrete, timber, or steel Builders and tradies needing high-visibility marks for layout, cutting, or alignment tasks

Overview The Forge 4oz Blue Chalk Line Refill is a fine-grade powdered chalk designed for use in chalk line reels. The vibrant blue colour offers excellent visibility and contrast on light or medium surfaces such as concrete, timber, brick, steel, and painted materials, creating crisp, accurate marking lines. Supplied in a compact 4oz plastic bottle with a precision nozzle and twist cap, it allows for easy, mess-free refilling without waste or spillage. This practical refill is perfect for tradies needing clear, reliable marks during bricklaying, tiling, framing, roofing, flooring, or general construction layout work. Why You’ll Love It Bright blue colour provides strong contrast and good visibility on most surfaces Compact 4oz bottle with precision nozzle for clean, controlled pouring Fine powder flows smoothly into chalk line reels with minimal clogging Built for Real Work Forge chalk refill is formulated to produce sharp, visible lines that resist blowing away in wind or fading too quickly on site. The fine texture ensures smooth dispensing from standard chalk line reels, while the sturdy bottle protects the powder from moisture and makes refilling quick and easy. It’s straightforward, jobsite-proven gear suited to Aussie construction, carpentry, and masonry work — ideal for snapping accurate guide lines for brick courses, floor layouts, roof trusses, or any task where you need a clear, reliable mark that helps you work faster and more accurately. Perfect For Bricklayers, carpenters, tilers, and framers marking straight lines on concrete, timber, or steel Builders and tradies needing clear, high-contrast marks for layout, cutting, or alignment tasks

Overview The Tool King Builders Line 100m is a high-quality 8-strand braided nylon line in bright orange, designed for accurate leveling, alignment, and marking on construction sites. Ideal for bricklaying, blockwork, rendering, tiling, and general building tasks, the strong braided construction resists stretching, fraying, and snapping while remaining highly visible. The 100-metre length on a sturdy spool makes it perfect for long runs on walls, foundations, or floors — a reliable, everyday essential for tradies and builders who need a tough, non-stretch line that stays taut and visible under Aussie sun and site conditions. Why You’ll Love It Bright orange colour for excellent visibility on building sites, even in bright sunlight 8-strand braided nylon construction for superior strength and minimal stretch Generous 100m length on a convenient spool for long runs and easy dispensing Built for Real Work Made from durable braided nylon, this Tool King builders line is engineered to handle the demands of daily site use — resisting abrasion, moisture, and repeated tensioning without fraying or losing tension. The 8-strand braid provides excellent tensile strength while remaining flexible enough to tie off securely or wind back neatly. It's straightforward, no-nonsense gear suited to Aussie construction sites — perfect for setting out brick courses, aligning formwork, marking straight lines for rendering, or any task where you need a reliable, highly visible guide line that won’t let you down mid-job. Perfect For Bricklayers, blocklayers, and masons setting out courses and maintaining level lines Builders, renderers, tilers, and tradies marking straight lines on walls, floors, or foundations

Overview Donaghys Nylon Builders Line (No. 8, 885 Tex) is a high-performance 50-metre braided nylon line in a vibrant red/orange colour, specifically engineered for accurate leveling, alignment, and marking on construction sites. The strong, low-stretch braided construction ensures the line stays taut over long runs, making it ideal for bricklaying, blockwork, rendering, tiling, and general building tasks. Wound on a durable red spool for easy dispensing and storage, this is a trusted, professional-grade line preferred by Aussie tradies who need reliable visibility and consistent tension without sagging or fraying under site conditions. Why You’ll Love It 50 metres of strong, low-stretch braided nylon (No. 8, 885 Tex) for long, taut runs Durable spool design allows smooth dispensing and neat storage on site or in the van Built for Real Work Donaghys builders line is manufactured from premium braided nylon that resists abrasion, moisture, and UV damage while maintaining minimal stretch under tension. The 8-strand construction delivers excellent tensile strength for setting out brick courses, aligning formwork, or marking straight lines for rendering and tiling. It’s built tough for daily jobsite use — easy to tie off securely, quick to wind back, and highly visible against concrete, brick, or timber. This is straightforward, professional gear that Australian bricklayers and builders rely on shift after shift. Perfect For Bricklayers, blocklayers, and masons setting out courses and maintaining level lines Builders, renderers, tilers, and tradies marking straight lines on walls, floors, or foundations

Overview Anchor Spot Survey Fluoro Yellow 350g is the blinding, high-vis yellow that every builder, sparkie, gas fitter and civil crew keeps on the truck. Inverted nozzle sprays clean lines or dots upside-down on dirt, concrete, bitumen, gravel or grass—perfect for marking power cables, gas lines, caution zones, footings or anything that absolutely must be seen before the shovel goes in. Why You’ll Love It Day-glo fluoro yellow that screams “STOP—DANGER” from a mile away. Dries in 2–5 minutes so you mark it and keep moving. Non-clog valve works right to the last drop, even when the can’s half crushed in the tray. Built for Real Work High-pigment acrylic formula in a bomb-proof can. One 350g can gives 80–100 metres of solid line or thousands of spots. It’s the exact same fluoro yellow you see on every roadwork, subdivision and Dial-Before-You-Dig site across Australia—stays bright for weeks, then wears off naturally with traffic and weather. Perfect For Sparkies and gas fitters marking underground services. Builders, council crews and landscapers marking caution zones, set-outs or trenches.

Overview Balchan Professional White Line Marking Paint 500g is the heavy-duty, super-opaque inverted aerosol that strata managers, warehouse fitters, schools and councils use for crisp, long-lasting white lines. Special upside-down nozzle gives sharpens edges on concrete, bitumen, pavers or grass—perfect for car parks, factory floors, tennis courts, safety walkways or temporary road markings. Why You’ll Love It Extra-large 500g can—up to 120–150 metres of 50–80 mm line per can. Brilliant traffic-grade white with massive hiding power, even over dark bitumen. Dries in 5–10 minutes so you can open the area the same day. Built for Real Work Australian-made with high-solids acrylic and non-clog inverted valve. One can easily outlasts two standard 350g cans and still sprays clean when it’s almost empty. Same paint used by professional line-marking contractors on shopping centres, schools and industrial estates—bright for months, then gradually wears away with traffic. Perfect For Strata & facility managers marking car parks and disabled bays. Warehouses laying safety walkways, forklift lanes and pallet zones. Schools & councils refreshing sports courts, netball lines or playground games.

Overview The Silver Streak Fire Trimmer Line 2.03mm x 15m is a durable general-purpose round nylon line that performs reliably around hard surfaces like concrete, fences and paths. This convenient clamshell pack is ideal for quick reloads or lighter trimming tasks. Why You’ll Love It Resists breakage when contacting rocks, edges and obstacles Consistent cuts through grass and light weeds Handy short length in a clamshell for easy storage and use Built for Real Work Made from a tough copolymer blend for increased strength and reduced wear. The round shape and 2.03mm thickness suit light to medium-duty petrol or electric trimmers, with a bright red colour for high visibility. Perfect For Homeowners maintaining lawns and edging around hard surfaces Tradies needing a reliable top-up for everyday yard work

Overview Donaghys Nylon Builders Line in Fluro Pink (No. 8, 885 Tex) is a high-performance 50-metre braided nylon line engineered for maximum visibility and accuracy on construction sites. The vibrant fluorescent pink colour stands out exceptionally well against concrete, brick, timber, and most backgrounds, even in bright sunlight or low-light conditions. The strong, low-stretch 8-strand braided construction keeps the line taut over long runs, making it perfect for bricklaying, blockwork, rendering, tiling, formwork alignment, and general building tasks. Wound neatly on a durable red spool, it’s a professional-grade line trusted by Aussie tradies who demand reliable tension and high visibility without sagging or fraying. Why You’ll Love It Fluro pink colour offers outstanding high-visibility, even in bright sunlight or dusty environments 50 metres of strong, low-stretch braided nylon (No. 8, 885 Tex) for long, taut runs Durable spool design allows smooth dispensing and neat storage on site or in the van Built for Real Work Manufactured from premium braided nylon, this Donaghys builders line resists abrasion, moisture, and UV damage while maintaining minimal stretch under tension. The 8-strand construction delivers excellent tensile strength for setting out brick courses, aligning formwork, or marking straight lines for rendering and tiling. It’s built tough for daily jobsite use — easy to tie off securely, quick to wind back, and highly visible against any background. This is straightforward, professional gear that Australian bricklayers and builders rely on for accurate, consistent results shift after shift. Perfect For Bricklayers, blocklayers, and masons setting out courses and maintaining level lines Builders, renderers, tilers, and tradies marking straight lines on walls, floors, or foundations

Overview Anchor Spot Survey Fluoro Orange 350g is the screaming high-visibility orange that every builder, surveyor, landscaper and civil crew keeps in the ute. Special inverted nozzle sprays clean lines or spots upside-down on concrete, bitumen, gravel, grass or dirt—perfect for marking trenches, footings, underground services, boundaries or anything that needs to be seen from 100 metres away before the machines roll in. Why You’ll Love It Day-glo fluoro orange that shows up like a beacon, even in low light. Dries in 2–5 minutes so you mark it and keep moving. Non-clog inverted valve works right to the last drop. Built for Real Work High-pigment acrylic formula in a tough can that survives the tray of the hilux. One 350g can lays down hundreds of metres of line or thousands of spots. It’s the exact same fluoro orange you see on every job site across Australia—lasts weeks outdoors but eventually wears off with traffic and weather, no permanent mess. Perfect For Tradies marking gas lines, power cables, footings or set-out points. Council crews, surveyors, landscapers or anyone needing screaming temporary visibility.