PROCHALK® Semi-Permanent for weather- and water-resistant lines that hit and stick for a long time but will eventually wear away naturally. Exterior applications include concrete layout, roofing, metal fabrication.PROCHALK® Semi-Permanent for weather- and water-resistant lines that hit and stick for a long time but will eventually wear away naturally. Exterior applications include concrete layout, roofing, metal fabrication. See More
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PROCHALK® Semi-Permanent for weather- and water-resistant lines that hit and stick for a long time but will eventually wear away naturally. Exterior applications include concrete layout, roofing, metal fabrication.