OX Trade Blue Marking Chalk 226g
This OX Trade blue line marking chalk comes in a 226g (8oz) bottle and is a trade grade chalk for snapping visible lines on the job site. It is built for layout work where a clear, long lasting line is needed, and the high visibility blue shows up well on concrete, timber and most building materials. It suits indoor and outdoor use.
Key Features
- Trade grade job site line marking chalk
- Long lasting and high visibility lines
- 226g (8oz) bottle refills a chalk reel
- Shows up on concrete, timber and most surfaces
- Suits indoor and outdoor layout work
Specifications
- Colour: blue
- Pack size: 226g (8oz)
- Grade: trade
- Use: chalk lines and job site layout marking
Applications
- Snapping layout lines on concrete and timber
- Marking out footings, slabs and walls
- Setting out battens, studs and roofing lines
- Refilling a chalk reel for site work
What You Need To Complete The Job
Use this chalk in a chalk reel, and keep the white and yellow colours for different surfaces. See the General Hand Tools range for more marking tools.
Frequently Asked Questions
When should I use blue marking chalk?
Blue is the standard colour for layout chalk on concrete, timber and most light to medium coloured surfaces. It shows up clearly and is the colour most chalk reels come with. For dark surfaces, white or yellow chalk is easier to see, and yellow works in low light. On most site materials a blue line is the one that reads best in normal daylight, which is why it is the standard choice for layout.
How long does the line last?
The chalk is a trade grade, long lasting line chalk, so the snapped line stays visible through the layout work. As with any chalk, heavy rain or heavy foot traffic can shorten the line. It is not a permanent marking product, but it holds up through normal site conditions.
Will this chalk work in a chalk reel?
Yes. The 226g bottle is sized to refill a chalk reel, and the chalk is a line marking grade that flows through the reel and snaps onto the surface. Use a reel with a good string tension and a straight pull for the cleanest line.
Is this chalk suitable for indoor work?
Yes. The chalk suits indoor and outdoor layout work. On indoor jobs it is useful for marking out floors and walls before setting out, and the blue line is easy to see on most surfaces. The chalk wipes or brushes off surfaces after the mark is no longer needed.



