Dulux Avista Oxide Black 10KG — Professional Concrete Colouring Pigment

The Dulux Avista Oxide Black is a premium-quality, UV-stable synthetic iron oxide pigment designed for colouring concrete, mortar, render, and resurfacing compounds. This 10-kilogram bag provides rich, consistent jet-black colour that is lightfast, alkali-resistant, and weatherproof — ensuring your decorative concrete retains its deep, bold appearance for years to come.

Formulated specifically for use within the Dulux Avista concrete colouring and resurfacing system, this oxide can be mixed into concrete at the batching stage, added to resurfacing compounds for colour-through effects, or used in conjunction with Dulux Avista Colour Hardener for intensified surface colour. Its fine particle size ensures even dispersion and consistent colour development throughout the mix.

Key Features & Benefits

• UV-Stable Pigment: Synthetic iron oxide resists fading under harsh Australian sunlight — colour stays true for the life of the concrete.
• Alkali & Weather Resistant: Chemically stable in the high-pH environment of cement and unaffected by rain, heat, and frost.
• Consistent Colour: Fine, uniform particle size ensures even dispersion with no streaking or colour variation between batches.
• Versatile Application: Suitable for integral concrete colouring, resurfacing compounds, renders, mortars, and grouts.
• 10KG Economy Size: Ample quantity for medium to large decorative concrete projects or multiple smaller jobs.

Ideal Applications

• Integral colouring of concrete for driveways, paths, and patios
• Colour-through resurfacing compounds
• Coloured mortar and render
• Tinting of grouts and cement-based repair products
• Decorative concrete features and landscaping elements

Usage Guidance

The dosage rate depends on the desired colour intensity and the cement content of your mix. As a general guide, oxide pigments are added at 2–8% by weight of cement. For a standard black concrete, 4–6% typically produces a rich, deep colour. Always conduct a small test mix to confirm the colour before committing to a full batch, as the final shade is influenced by the cement type, sand colour, water content, and curing conditions. Mix the oxide thoroughly with the dry cement and sand before adding water to ensure even distribution.

Frequently Asked Questions

1. How much Oxide Black do I need for my concrete project?

As a general guide, oxide pigments are added at 2–8% by weight of the cement content. For a standard black concrete mix using 350 kg of cement per cubic metre, a 4% dosage equals 14 kg of oxide per cubic metre. For smaller projects — such as a resurfacing compound — follow the specific product instructions. When in doubt, mix a small test batch first to confirm colour satisfaction.

2. Will the colour fade over time?

No. Dulux Avista Oxide pigments are synthetic iron oxides — chemically stable compounds that do not fade under UV exposure. Unlike organic dyes or low-quality natural oxides, they maintain their colour integrity for the lifetime of the concrete. Any apparent fading is typically due to surface wear exposing the natural concrete colour beneath, not pigment degradation.

3. Can I mix Oxide Black with other oxide colours?

Yes. Oxides can be blended to create custom shades. Adding Oxide Black to Oxide Red produces deeper burgundy tones; blending with Oxide Yellow creates earthy browns. For consistent results, pre-blend the dry oxides thoroughly before adding to the cement mix, and record your blend ratios for future batches.

4. Is Oxide Black safe to handle?

Oxide pigments are finely powdered and can create dust during handling. Wear a dust mask, safety glasses, and gloves when mixing. Avoid inhaling dust and wash skin thoroughly after contact. The pigment will stain clothing and porous surfaces, so wear appropriate workwear and protect surrounding areas during mixing.

5. Can I use this oxide with any brand of cement or resurfacing compound?

Yes — iron oxide pigments are compatible with all standard Portland cements and cement-based products. However, for best results within the Dulux Avista system, use with Dulux Avista Resurfacing Compound and Colour Hardener to ensure consistent colour and performance across all components of your decorative concrete project.

6. Does the oxide affect the strength of the concrete?

At standard dosage rates (2–8% by weight of cement), oxide pigments have no significant effect on concrete strength or workability. Very high dosage rates beyond 10% may slightly increase water demand — if additional water is needed, compensate with a proportionate increase in cement to maintain the water-cement ratio.