Everbuild Opti-Mix Concentrated Mortar Plasticiser 1L

Everbuild® Opti-Mix® Mortar Plasticiser – 1 L

Highly concentrated air-entraining liquid admixture offering the performance of standard plasticisers in a compact form. Opti-Mix® enhances mortar workability and durability, giving it a smooth, “buttery” consistency that simplifies application and improves finishing.

Key benefits

• Extremely concentrated—1 litre equals approximately 25 litres of conventional mortar plasticiser.
• Creates stable air bubbles to improve workability and trowelability.
• Helps prevent shrinkage, cracking, crazing and mild frost damage during curing.
• Improves long-term resistance to freeze/thaw cycles.
• Replaces lime in mixes, reducing the risk of efflorescence and smoothing variations across batches.

Typical applications

• Pointing mortars
• Renders
• Screeds
• Bricklaying mortars

Usage guidelines

• Dosage: approximately 5–10 ml per 50 kg of cement.
• Add Opti-Mix® into gauging water before mixing with dry ingredients—not directly into the dry mix.
• Store in a cool, dry place and protect from frost.

Product details

• Size: 1 L self-gauging plastic bottle (also available in 250 ml).
• Colour: Dark brown liquid.
• Compatibilities: Conforms to BS EN 934-3 standards.
• Shelf life: Typically up to 24 months from manufacture when stored correctly.

Good to know

Always conduct a trial batch to verify dosage and performance under your specific site conditions. Avoid overdosing and do not mix Opti-Mix® with other additives in the same gauging water.