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Marking chalk marks are temporary. Provides greater visibility in standard lighting conditions. Durable formula is weather-resistant and suitable for interior or exterior use. Use to show layout changes and corrections on metal, concrete, lumber, plastic, cardboard and other surfaces. IRWIN Tools STRAIT-LINE Standard Marking Chalk, 5-pound, Fluorescent Orange (65105)
From the Manufacturer
The 65105 Strait-Line 5lb Fluorescent Orange Chalk is what you need to help get things Strait. The Strait-Line 2.5lb blue chalk is great for outdoor use, carpentry, bricklaying, masonary, roofing,carpet installation,floor and wall tiling, painting, decorating and many other uses. Fluorescent orange is permanent color that will endure the wear and tear of the outside environment For more than 30 years, Strait-Line products have represented the standard for excellence and performance in marking tools.
Concrete Jedi
Reviewed in the United States on January 5, 2025
This has been our go to chalk for years. Performance and value are both checked here.
Joe
Reviewed in the United States on January 10, 2025
Yup, as described. Good Stuff. Using in 40mm Chalk Grenade rounds
Fierce Ginga
Reviewed in the United States on March 1, 2024
For the value you can't go wrong. Is there better kinds of chalk out there? Im sure.If you price check the local Menards you will notice how good a deal this is.plus I like using the orange as its not there forever.This tub of chalk should last me for years.
Mike Roseville Michigan
Reviewed in the United States on November 1, 2024
Chalk is great, but container damaged and leaks. Chalk was everywhere in the box probably lost half of the chalk. Will definitely look at a different brand next time.
Joshua J
Reviewed in the United States on January 14, 2024
Much easier to see in dimly lit spaces than other colors. I like how it’s slightly more permanent that blue. So far so good. I’d buy again
John Vauters
Reviewed in the United States on April 10, 2024
As a concrete finisher it works great for your chalk lines on especially like brick walls. It stands out like a sore thumb. Very easy to see. It don't Staind concrete driveways when you snap your chalk lines so you can cut them.
wayne lively
Reviewed in the United States on January 7, 2023
I wanted to fluorescent orange chalk. This seems to fit the bill.
Dave Woodcroft
Reviewed in Canada on December 28, 2022
The colour is so easy to see on all surfaces, but dark surfaces especially. It cleans of easily as well
April
Reviewed in Canada on November 3, 2019
Hard stuff to find in orange and the price was right.
Cory Gorse
Reviewed in Canada on November 13, 2019
Great colour. Perfect for concrete work without leaving an unsightly red or blue line or excess chalk
cj
Reviewed in the United States on April 7, 2016
good chalk, pours free and loose
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