639141 - Flat Soapstone Markers 5-Inch (6-Pack)

Industrial Grade Flat Soapstone Markers

The Weld-Aid 639141 constitutes a package of six (6) flat soapstone markers, designed for professional metal fabrication and welding applications. Each marker measures 5 inches in length and is cut from high-quality natural terrestrial talc schist. This material is selected for its consistent grain structure, ensuring smooth application without crumbling or scratching the base metal. The flat geometric profile (typically rectangular in cross-section) is specifically engineered to fit standard industrial flat soapstone holders, providing mechanical stability that prevents the marker from rotating during use or rolling off inclined worktables.

Soapstone is chemically inert and possesses high thermal stability, making it the industry-standard medium for temporary layout markings on ferrous and non-ferrous substrates. Unlike wax-based crayons or paint markers, soapstone does not carbonize or burn away instantly when exposed to the radiant heat of oxy-fuel cutting torches or welding arcs. Furthermore, the markings are non-contaminating; they do not introduce impurities into the weld pool that could lead to porosity or inclusions. The white markings provide excellent contrast on dark mild steel and mill scale, yet can be easily removed via mechanical abrasion or solvent cleaning once fabrication is complete.

This 6-pack configuration ensures a ready supply of consumables for high-volume production environments. The markers are suitable for use on a wide range of materials including carbon steel, stainless steel, and aluminum. They are an essential consumable for pipefitters, boilermakers, and structural fabricators requiring precise, heat-resistant layout lines.