Chalk Powder SOLA CPB 230 blue 230 g – SOLA measuring tool chalk powder

SOLA CPB 230 is a 230 g blue chalk powder formulated for visible temporary markings on construction and trade sites. Supplied as a loose powder, it is intended for use with manual chalk lines, refillable chalk boxes and for short-term manual marking. The pigment delivers high-contrast blue lines on a range of surfaces to support layout, alignment and cutting guides in carpentry, tiling, masonry and general site work.

Advantages

The product offers a compact, ready-to-use 230 g portion of blue chalk powder that is easy to store and load into standard chalk containers. Its loose-powder form allows quick refills and even distribution when shaken or tamped into chalk line tools. The blue pigment provides clear, high-contrast lines that are easy to see on many common building materials, while the formulation is intended for temporary markings that can be brushed or washed away as part of finishing work.

Suitable for

• Marking straight lines with chalk line reels and chalk boxes
• Temporary layout and alignment on wood, concrete, drywall and tile
• Carpentry, tiling, masonry and general on-site layout tasks
• Manual spot marking where temporary, visible contrast is required

When it may not be suitable

This blue chalk powder is designed for temporary, high-contrast markings and is not intended as a permanent marker. It may be less visible on very dark or glossy surfaces where contrast is reduced. For situations requiring waterproof, oil-resistant or permanent lines, a different marking method or product should be chosen.

Key specifications

• Form: loose powder
• Color: blue
• Net weight: 230 g
• Intended use: temporary marking and layout
• Compatibility: standard chalk line reels and chalk boxes

How to use

Fill a compatible chalk line reel or chalk box with the powder according to the tool manufacturer’s instructions. For manual marking, sprinkle a small amount of powder onto the surface and spread or press gently to create the desired visible line or spot. Strike the chalk line over the powdered filament to transfer a straight line onto the work surface. After use, excess powder can be brushed or washed away during cleaning or finishing.

What to consider before purchase

• Ensure the blue color provides sufficient contrast on the surfaces you will mark
• Confirm that your chalk reel or box accepts loose powder refills
• Choose powder rather than liquid or paste markers when temporary markings are required

Usage recommendations

Store the chalk powder in a dry place to prevent clumping. When filling tools, avoid overfilling to maintain smooth line transfer. For best visibility, apply to clean, dust-free surfaces and test a small area if surface finish or color may affect contrast.