Carson Crayons is an iconic Australian brand celebrated across the building, forestry, and civil construction industries for producing heavy-duty industrial marking tools. Specially formulated using a high-density wax and clay blend, Carson marking crayons—often referred to as layout chalk or keel—are engineered to deliver highly visible, fade-resistant, and waterproof marks on demanding surfaces. Built to withstand extreme worksite conditions without crumbling or melting in direct sunlight, Carson crayons effortlessly mark timber, concrete, steel, bitumen, stone, and rubber, whether the material is wet, dry, or rough. Available in a wide spectrum of bold colours, these versatile marking tools provide tradespeople, builders, foresters, and surveyors with reliable accuracy and extended marking mileage. Designed for maximum durability and effortless application, Carson Crayons ensure critical measurements, cutting guidelines, and layout notes stay clear and legible throughout every stage of your project. Browse the range of Carson Crayons at The Grit to equip your job site or workshop with top-tier Australian-made marking supplies designed for tough everyday trade performance.