Product Information
- Known in construction trades as "keel" or layout chalk
- Formulated for weather- and fade-resistant marking on most surfaces
- Special softer formula allows for superior marking in cold climates
- Use on lumber, concrete, metal, plastic, rubber, paper, cardboard, and ceramics
- Standard 1/2" hex shape fits the #109 peterson holder, #106 holder and #108 holder
- Marking range: -20°F to 150°F (-29°C to 66°C)