Generic Iron Oxide Black Pigment, 25kg Bag, UV Stable Cement Colorant

Iron Oxide Black Pigment

The Generic Iron Oxide Black Pigment provides a high-tinting solution for integral coloring in cementitious mixes, concrete products, and masonry mortars. This synthetic mineral additive delivers deep, consistent black tones across large-scale construction projects. It maintains chemical stability in high-pH environments typical of concrete and mortar applications.

Built for the Job

Site supervisors and pre-cast manufacturers utilize this powder to achieve uniform aesthetics in paving blocks, roof tiles, and stamped concrete. Unlike organic dyes, this synthetic magnetite-based material resists fading under intense UV exposure and harsh weather conditions. It integrates directly into the mix during the dry-batch phase to ensure even distribution without clumping or streaking.

• In-situ concrete coloring for driveways, walkways, and architectural structural elements.

• Manufacturing of colored masonry units, including bricks, blocks, and stone veneers.

• Tinting of mortar joints and renders to match or contrast with facade materials.

Product Highlights

Alkali and UV Resistance

The chemical structure remains inert when mixed with lime and cement, preventing color leaching or degradation over time.

High Tinting Strength

• Fine particle size ensures maximum surface coverage of cement grains.
• Achieves deep black or slate grey shades with low dosage rates.

Technical Specifications

What’s Included

• 1 x 25kg Multi-wall Paper Bag of Iron Oxide Black Powder

On-Site & Workshop Notes

• Maintain consistent water-to-cement ratios across batches to prevent shade variations caused by efflorescence.

• Blend the pigment with dry sand and cement for at least 60 seconds before adding water to ensure streak-free results.

• Limit dosage to a maximum of 10% of the total cement weight to avoid compromising the structural integrity of the concrete.

• Store in a dry location; reseal opened bags immediately to prevent moisture absorption and contamination.