Soapstone

Basics

• A Talc Rock used in a similar manner to a Pencil / Grease Pencil but largely for Welding and other "Hot Work" instead of Woodwork / Construction etc
• It's main advantage is that it doesn't burn off, is easily visible under a Welding Hood / Tinted Face Shield / Torch Goggles , and it doesn't Contaminate the weld (need to fact check the last one)