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What is black oxide used for?

June 29, 2023

We all know that concrete is a versatile material commonly used in construction and landscaping projects – but while its natural grey hue may seem pretty bog standard, there are some clever ways to transform its appearance and add a touch of elegance, depending on the aethestic results you're looking for.


One such method is using black oxide, a pigment that can be incorporated into concrete to create a stunning darkened effect. Black oxide is a powdered pigment derived from iron oxide which, when added to concrete, creates a deep black colour that can bring a sophisticated and contemporary look to any project.


Black oxide is typically mixed with water to form a slurry-like consistency before being added to the concrete mixture. The slurry should be evenly distributed throughout the mixture to achieve a uniform colour. Remember that it's important to follow the manufacturer's instructions regarding the recommended dosage of black oxide for the desired colour intensity.


This is just a simple way to say that, whether you're working on a residential or commercial project, adding black oxide can transform ordinary concrete into a unique design feature that is maybe even a little unexpected. So if you're interested in using black oxide hues for your concrete or want to learn more about concrete supplies and techniques, consider reaching out to the knowledgable team at Narellan Sand, Soil & Garden Supplies for expert guidance and a wide range of other high-quality products.

Additional FAQs

  • How else can you darken concrete colour?

    To darken the colour of concrete, alternative methods include using integral colour pigments, acid staining, or dyes. Each technique offers different effects and requires varying application processes.

  • How much black oxide should I add to concrete?

    The amount of black oxide to add to concrete depends on the desired colour intensity. It is recommended to consult the product instructions or seek professional advice to determine the appropriate dosage for your specific project.

  • What's the ratio of black oxide to cement?

    The ratio of black oxide to cement varies based on the desired colour and the brand of black oxide being used. It is advisable to refer to the manufacturer's instructions for accurate information on the pigment-to-cement ratio.

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