ProChalk Permanent for weatherproof and waterproof lines that aren’t going to go away any time soon. Most users are choosing this level of intensity for applications that are going to be covered. This level is engineered for more extreme conditions. Exterior applications include exterior layout, extreme conditions, concrete layout, long-term applications.
Professional grade permanent weatherproof marking chalk
Applications include exterior layout, concrete layout, roofing, metal fabrication
For weatherproof and waterproof lines that aren't going to go away any time soon Used for more extreme conditions
Made in the USA