Accelerators & Admixtures
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£5.07 ex. VATSikaMix 3 in 1 is a water-resisting plasticiser and retarder designed to enhance the performance of renders and screeds while also helping to prevent efflorescence. It improves durability by reducing water penetration and lowering porosity, while its air-entraining properties help maintain workability for longer periods and prevent water bleeding. In addition, it inhibits the transmission of hygroscopic salts, contributing to a stronger, longer-lasting finish. Key Points: - Improves resistance to water penetration and reduces porosity. - Enhances durability and long-term performance of re -
£3.91 - £19.02 ex. VATAlphaChem Integral Waterproofer is a liquid admixture designed to reduce water absorption and make cement mixes less permeable. It also improves the workability of the mortar. Integral Waterproofer is suitable for use in rendering finishes and pointing mortars. It is also used in reconstructed stone and non-structural concrete members – particularly valuable in:‐ - Semi‐dry mixes. - Internal and external rendering. - Special finishes. - Pebbledash and Harling - Rough Cast. - Stucco etc. DOSAGE - 1 litre per 50‐100kg cement.Select options This product has multiple variants. The options may be chosen on the product page
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£4.83 ex. VATSikaMix Integral Waterproofer is a liquid/gel admixture designed to provide long-term protection against water penetration in mortar, render, and screed applications. By significantly reducing water permeability and surface absorption, it helps protect structures from water damage in demanding environments such as swimming pools, water tanks, roofs, external rendering, pointing, and below-ground construction. The formulation includes an air-entraining agent that improves workability without flattening the mix, eliminating the need for a separate plasticiser. It is also low in toxicity, chlorid
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£5.14 ex. VATSikaMix Frostproofer and Hardener is a chloride-free admixture designed to accelerate the setting and hardening of mortar, concrete, screeds, and renders. It provides reliable frost protection during the curing period in temperatures as low as -8°C, making it ideal for cold-weather construction. The formulation also enables faster finishing times, improves productivity by optimising mould usage, and can be used as a plugging admixture where rapid setting is required. Being non-corrosive, it is safe for use with metal components such as brick ties. Key Points: - Accelerates setting and har
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£61.48 ex. VATThe addition of ARDEX E25 Mortar Admix to ARDEX subfloor smoothing compounds is recommended for applications requiring high abrasion or point load resistance, such as temporary wearing surfaces or when applying floor paint or coatings (with compatibility testing and trial applications). It is also ideal for floors with underfloor heating, ensuring the heating is off for 48 hours before and after screeding and then gradually brought up to temperature. Additionally, ARDEX E25 is used with ARDEX K 15 Rapid Drying Self-Levelling Compound to enhance strength and durability, particularly w
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£10.75 ex. VATBond It Power Proof is a concentrated, 10 times stronger, integral water-resistant plasticiser that enhances resistance to water penetration, both internally and externally, while offering all the benefits of a standard mortar plasticiser. It improves the workability and plasticity of concrete, and effectively retards suction in multi-layer renders. This non-corrosive, chloride-free formula is CE approved and ideal for use in internal and external rendering, roof screeds, swimming pools, tanks, basement walls, reservoirs, and other areas prone to water penetration. Simply add the requi
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£4.97 - £6.90 ex. VATThis concentrated mortar plasticiser, 20 times stronger than standard alternatives, is designed to improve the workability of brick laying and plastering mortars while enhancing their resistance to freeze-thaw cycles. It eliminates the need for lime, reducing the risk of cracking and crazing in the mix. CE Approved, it is easy to use by simply adding the required amount to the gauging water. Key Points: 20 times stronger than standard mortar plasticisers Improves workability and handling of mortar Eliminates the need for additional lime Increases freeze-thaw resistanceSelect options This product has multiple variants. The options may be chosen on the product page
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£5.35 ex. VATThis premium quality, non-corrosive, 5-times stronger concentrate additive is designed to increase frost resistance and accelerate the setting time of cements by improving hydration rates. It is specially developed for bricklaying and rendering in low and sub-zero temperatures, enhancing workability, strength gain, and resistance to water penetration. The additive will not degrade steel wall ties, reinforcements, or other steel items, making it safe for use with metal structures. It is CE approved and should be added directly to the gauging water at a rate of 500ml (half a bottle) per
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£4.37 - £19.42 ex. VATBond It Frostproofer & Hardener is a high-performance building chemical that enhances frost resistance and accelerates cement setting by improving hydration. Specially designed for bricklaying and rendering in low and sub-zero temperatures, it increases workability, strength gain, and water resistance while allowing up to a 15% reduction in gauging water. The non-corrosive, chloride-free formulation ensures it does not degrade steelwork or wall ties. CE-approved, it also reduces curing time and shrinkage, with hot water recommended below 4°C and usage discouraged below 2°C if tSelect options This product has multiple variants. The options may be chosen on the product page
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£2.56 - £12.31 ex. VATSikaMix Mortar Plasticiser is a ready-to-use plasticising and air-entraining liquid admixture for mortars, renders, screeds, and plaster. It improves workability, consistency, cohesion, and adhesion while enhancing the durability of cement-based mixes. Its chloride-free formulation helps reduce shrinkage, cracking, efflorescence, and the risk of steel corrosion without adversely affecting setting times. Easy to use and highly economical, it also improves frost resistance for long-term performance. Key Points: - Improves workability – Enhances consistency, plasticity, and ease of applicatSelect options This product has multiple variants. The options may be chosen on the product page
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£7.11 ex. VATSika MaxMix® Concentrated Accelerator & Frostproofer is a chloride-free, air-entraining admixture designed to accelerate the setting and hardening of mortars and renders. Formulated for cold-weather construction, it provides frost protection at temperatures down to -4°C while eliminating the need for a separate frostproofing additive. The product improves workability, reduces water absorption and penetration, and is safe for use with embedded metal components such as brick ties and reinforcement. Its concentrated formula delivers economical performance, with 1 litre treating up to 100 kg of
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£52.88 ex. VATSika®-4a is a rapid-setting water stopping cement additive designed to seal areas of moderate water infiltration in concrete, rock, and masonry. When mixed with ordinary Portland cement and clean water, it creates a fast-acting plugging and fixing solution that is solvent-free, chloride-free, and easy to prepare on site. Key Points: - Rapid setting for quick leak plugging and repairs - Suitable for concrete, rock, and masonry applications - Chloride-free and solvent-free formula - Ready to use by mixing with clean water and ordinary Portland cement Shelf Life - 12 months Storage
