Cement Dyes & Additives

Cement dyes & additives give you precise control over the colour, workability, and performance of your mortar, render, and concrete mixes. Whether you're matching existing brickwork, creating decorative finishes, or improving the durability of your mix in challenging conditions, these specialist products transform standard cement into a tailored solution for your specific project requirements.

Our Cement Colourants & Admixtures Range

From vibrant pigments to performance-enhancing additives, we stock products to meet both aesthetic and technical demands.

• Cement dyes and pigments: iron oxide-based colourants in black, red, yellow, brown, and buff shades for consistent, UV-stable colour throughout mortar and render.
• Plasticisers: improve workability and reduce water content, making mixes easier to spread while increasing final strength and frost resistance.
• Waterproofers: integral admixtures that reduce porosity and prevent moisture penetration in below-ground applications and exposed renders.
• Accelerators and retarders: control setting times to suit weather conditions or complex pours requiring extended working periods.
• Bonding agents: enhance adhesion between new and existing concrete or masonry for reliable repairs and overlays.

These products work best when paired with quality base materials, browse our full Cement & Aggregates selection to source everything for your mix.

Choosing the right additive depends on your application. For pointing and bedding, colour-matched dyes create seamless finishes. External renders benefit from waterproofing admixtures, while plasticisers suit general-purpose work where improved handling matters most. Always follow manufacturer dosage rates to maintain structural integrity.

Why Choose McMahons for Your Cement Additives?

With nearly two centuries serving Ireland's builders, McMahons understands that the right additive makes the difference between an adequate finish and a professional result. Our staff can advise on colour matching, dosage calculations, and product compatibility with your chosen Cement & Lime products. Ready to get your materials on site? Check our delivery service for convenient options across Ireland.