Sika Mix Mortar Plus Plasticiser 25L

SikaMix Mortar Plasticiser 25L by Sika Limited is a professional-grade, ready-to-use plasticising and air-entraining liquid admixture engineered to improve the workability, durability, and cohesion of bricklaying mortars, renders, and screeds. Trusted by UK bricklayers, groundworkers, and rendering contractors, it acts as a direct lime alternative — simplifying mix preparation without compromising mortar quality. Its chloride-free formula makes it safe for use around embedded metals and reinforcement.

Key Features and Specifications

• Volume: 25 litres
• Colour: Brown liquid
• Type: Plasticising and air-entraining liquid admixture
• Dosage rate: 125–250 ml per 50 kg cement (always add to gauging water)
• Density: 0.98–1.02 g/cm³
• pH value: 7.4–9.4
• Total chloride ion content: <0.1% w/w — non-corrosive to embedded metals
• Certification: CE marked as mortar admixture for masonry
• Standard: Conforms to EN 934 Part 3 (2009) for air-entraining plasticising mortar admixtures
• Frost resistance: Provides freeze-thaw protection down to -2°C in wet and dry mortar
• Storage: Store in original unopened packaging in dry conditions at +5°C to +35°C

Applications

• Bricklaying and blockwork mortars — produces a smooth, ‘fatty’ mix with excellent workability
• Rendering and plastering — improves adhesion to dense concrete, masonry, steel, and tiles
• Pointing mortars — reduces shrinkage, cracking, and the butterfly effect
• Screeds — increases cohesion and reduces bleed and segregation
• Cold-weather construction — enhanced frost resistance extends the working season
• Lime replacement — eliminates the need for lime in standard mortar mixes, reducing efflorescence risk

Why Choose This Product

SikaMix Mortar Plasticiser 25L delivers consistent, batch-to-batch performance even with variable sand quality. The 25-litre container offers excellent economy for trade use — one litre treats approximately 200 litres of gauging water, covering around four 50 kg bags of cement. It is ready to use straight from the container, requires no pre-mixing, and is compatible with most Portland cement types. Backed by Sika’s global construction chemistry expertise, it is a reliable, specification-grade choice for both large-scale commercial projects and domestic masonry work.

Delivery in and Around London

We deliver SikaMix Mortar Plasticiser 25L to London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities and multi-pallet orders are welcome — contact us for volume pricing and scheduled delivery options.