Irwin 4935526 Strait Line Midnight Black Permanent Marking Chalk Refill

Key Features

• Visible after weeks of weather exposure and jobsite wear
• Reduces need for spray sealant
• Stains surfaces

Marking chalk exterior permanent 4 pound refill color=midnight black Stains surfaces; visible after weeks of weather exposure and jobsite wear. Reduces need for spray sealant. The flip-top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping.

IRWIN STRAIT-LINE? (r) Marking chalks have a newly engineered flip-top cap that keeps the chalk in the bottle where you want it and stops it from spilling out in areas that you don't. The flip-top cap, available on all IRWIN STRAIT-LINE? (r) chalk bottles, seals the chalk in an air-tight chamber, keeping out moisture and reducing the risk of clumping. Stains surfaces; visible after weeks of weather exposure and jobsite wear. Reduces need for spray sealant. The flip-top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping.