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Repair Admixtures

Specialist repair admixtures are key additives designed to enhance the performance of construction materials in various conditions. These products offer solutions for improving workability, water resistance, curing times, and even cold-weather application. They are commonly used in concrete, masonry, and mortar repairs, ensuring stronger, longer-lasting results. Different types include waterproofers to reduce water absorption, plasticisers for workability, accelerators to decrease curing times, and winter additives to enable application in low temperatures. For product compatibility and recommendations, customers are advised to contact technical support.

There are 47 products.

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Fosroc Cebex 100

Fosroc Cebex 100

Fosroc Cebex 100 is an expanding and plasticising powder admixture for site batched cementitious grouts where a reduced water/cement ratio and positive expansion is required. Applications include bed grouting, duct grouting, non-shrink infilling and jointing. Cebex 100 is a suitable pre-stressing grout admixture when complying with BS 8110...

Price £7.96 (incl. VAT)
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Sika Accelerator

Sika Accelerator

Sika Accelerator is a chloride free liquid admixture for set acceleration and rapid hardening of cement based mortar, concrete, screeding and render. Also provides frost protection in the wet mortar during the setting period; even in sub-zero temperatures (down to –8°C). May also be used neat with cement as a plugging aid. Non-corrosive to...

Price £27.90 (incl. VAT)
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SikaBond SBR+

SikaBond SBR+

SikaBond SBR+ is a white liquid, which has numerous uses as an admixture, primer, bonding agent and sealer. Polymer Emulsions of this type have been used extensively over the last 20 years by the building industry as an admixture for cement and concrete applications, including repair and renovation, surfacing of floors and bonding generally....

Price £74.58 (incl. VAT)
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Sika MaxMix Cement Colour

Sika MaxMix Cement Colour

A concentrated one shot cement colourant that provides a permanent colour to all types of mortars, rendering, concrete and pointing. The liquid disperses evenly through the mix, to give a uniform shade for each mix batch - shading can be adjusted to give a wide variety of colour depths. Economical - just 25ml of product needed per 10kg...

Price £89.58 (incl. VAT)
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Cromar AlphaChem Mortar...

Cromar AlphaChem Mortar Plasticiser

Cromar AlphaChem Mortar Plasticiser, otherwise known as Pink Mix, is a pink coloured liquid admixture used in bricklaying and plastering mortars. Enhances workability and freeze thaw resisitance in sand and cement mixes Reduces the likelihood of cracking and crazing Super strength pink formula Complies with EN934-3 (2009) Pink colour...

Price £12.76 (incl. VAT)
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Ronacrete RonaScreed...

Ronacrete RonaScreed FastDry Prompt

Fast drying liquid screed additive for site batched screeds - formerly known as RonaScreed 8 Day Overlay. Reduces on site delays - much more cost effective than cement replacement products Lay flooring over 50mm screeds after 4 days Over 75mm and 100mm screeds after 6 days Conforms to BS EN 13813 Early commissioning of underfloor...

Price £99.66 (incl. VAT)
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Fosroc Conplast UW

Fosroc Conplast UW

Fosroc Conplast UW is an underwater concrete admixture used to minimise washout of concrete placed underwater. When added to concrete, Conplast UW produces a gel in the water phase which surrounds the cement particles and other fine components of the concrete mix and protects them from excessive washout both during placement and once the...

Price £236.88 (incl. VAT)
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Sika MaxMix Frostproofer & Accelerator

Sika MaxMix Frostproofer & Accelerator

Sika MaxMix Frostproofer and Accelerator is a highly concentrated chloride free air entraining admix which is designed specifically for cold weather working, eliminating the requirement for a second frost proofing admix.  It reduces the setting time of sand and cement based mortars, renders, screeds etc and is the ideal choice for a cold...

Price £60.23 (incl. VAT)
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Sika MaxMix Mortar Plasticiser

Sika MaxMix Mortar Plasticiser

Sika MaxMix Mortar Plasticiser is a highly concentrated air entraining liquid plasticising admixture which is 25 times the strength of conventional products.  It forms extremely stable air bubbles in mortar mixes - this improves the workability of mortar, giving it a “buttery” consistency and helps prevent shrinkage, cracking, crazing and...

Price £36.64 (incl. VAT)
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Ronacrete Ronafix Universal

Ronacrete Ronafix Universal

Admixture for thin bonded, floating and unbonded screeds and toppings.  Applications include: Floor screeds, concrete repair Waterproof renders Slurry coats/levelling and protective Heavy-duty floor toppings Protection of steel reinforcement Bedding and bonding mortars Tanking and waterproofing Conforms to BS EN 934-2 Open to...

Price £39.86 (incl. VAT)
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SikaMix Powdered Mortar Plasticiser

SikaMix Powdered Mortar Plasticiser

SikaMix Powdered Mortar Plasticiser (PMP) is a pre-measured air entraining admixture which complies to EN 934 and replaces or complements the use of lime in sand and cement bricklaying and rendering. Features and Benefits  Ready to use sachets - tub contains 250 sachets Improved workability Increases durability Reduces shrinkage...

Price £46.51 (incl. VAT)
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Sika Rendermix

Sika Rendermix

Sika Rendermix is a water resisting plasticiser for improving renders and screeds.  Features and Benefits Air entraining. Prevents water bleeding. For exterior renders and screeds. Mortar improver for pebble dashing finish. Conforms to EN934-3 Air Entraining/Plasticising Admixtures.  More Information Delivery Info

Price £26.23 (incl. VAT)
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SikaCem 810

SikaCem 810

SikaCem 810 is a modified SBR polymer admixture. It is a patented latex combination of SBR, silica fume and superplasticiser for bonding and improving mortars, renders and screeds.  Improved workability Improved mechanical properties, such as abrasion and impact Improved resistance to freeze/thaw cycles Reduced shrinkage and cracking...

Price £157.19 (incl. VAT)
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Mapei Mapecure SRA

Mapei Mapecure SRA

Curing admixture with the ability to reduce hydraulic shrinkage and the formation of micro-cracks. Typical application in Construction and repair of: Floor joists and motorway viaduct piers Industrial floors Multi-storey car parks Hydraulic works, such as canals, overflow channels, tanks, etc Prefabricated concrete elements such as...

Price £16.73 (incl. VAT)
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Sika MaxMix Waterproofer

Sika MaxMix Waterproofer

Sika MaxMix Waterproofer is a highly concentrated waterproofing and air entraining admixture for sand and cement which is 25 times the strength of conventional products. It forms extremely stable air bubbles in sand/cement mixes. This improves the workability of mortar/render giving it a “buttery” consistency and helps prevent shrinkage,...

Price £60.12 (incl. VAT)
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Fosroc Auracast 200

Fosroc Auracast 200

Fosroc Auracast 200 is a cement admixture formulated using a unique combination of the latest generation of polycarboxylate polymers which act synergistically to outperform conventional superplasticisers. Specifically developed for the precast concrete industry coupling superior high range water reducing capabilities and excellent dispersion...

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Ronacrete RonaScreed SBR

Ronacrete RonaScreed SBR

Admixture for site batched screeding mortars and fine concretes, used to lay new screeds and toppings as thin as 10mm bonded. The cured mortar bonds securely to suitably prepared surfaces and is water-resistant. Bonded screeds from 10mm Open to foot traffic next day, heavy traffic after 3 – 5 days Excellent wear resistance Lay flooring...

Price £37.99 (incl. VAT)
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Sika Wintermix

Sika Wintermix

Sika Wintermix is air entraining chloride free liquid admixture for mortar and concrete which also acts as an accelerator for work in sub - zero temperatures.  Features and Benefits Increased frost resistance during setting. Non - corrosive to imbedded metal (chloride ion free) Eases tamping down and alignment Improves...

Price £17.98 (incl. VAT)
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Cromar AlphaChem...

Cromar AlphaChem Accelerator, Frostproofer & Hardener

Cromar AlphaChem Accelerator, Frostproofer & Hardener is heat‐generating accelerator for cement based mixes. Suitable for use as an aid to cold weather working when the heat generated will offset the retarding effect of low temperatures Designed to aid the use of cement in cold weather, even at sub-zero temperatures Accelerates setting...

Price £18.48 (incl. VAT)
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Fosroc Nitobond SBR

Fosroc Nitobond SBR

Fosroc Nitobond SBR is a modified styrene butadiene rubber emulsion which is supplied as a ready to use white liquid. It is designed to improve the qualities of site-batched cementitious mortars and slurries. For improving and bonding concrete repair mortars, floor toppings and screeds, waterproof renders and cementitious slurries Being...

Price £110.82 (incl. VAT)
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Keim Concretal-SD (Fine...

Keim Concretal-SD (Fine Filler Dilution)

Keim Concretal-SD (Fine Filler Dilution (Spezialvergütung)), a water-dilutable dilution for KEIM Fine Finishing Mortar to produce blowhole grout. Blowhole grout: 25KG KEIM Concretal-FSP 0.2 (Fine Finishing Mortar) 4.5L Water 1.5L KEIM Concretal-Fine Filler Dilution Note: The name of this product will change in early 2023 - also...

Price £84.00 (incl. VAT)
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Cromar Liquid Mortar Tone

Cromar Liquid Mortar Tone

Liquid mortar tone is an Iron Oxide based liquid dye that's formulated to provide a permanent colour to all types of mortars, rendering, concrete and pointing.  Permanent cement colourant Mix at a rate to suit your own requirements Add more liquid to increase the intensity of the colour mix Do not add to other admixtures. Please...

Price £60.07 (incl. VAT)
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Cromar AlphaChem Integral...

Cromar AlphaChem Integral Waterproofer

Cromar AlphaChem Integral Waterproofer is a liquid additive specifically designed to improve water resistance in concrete and mortar for use in applications where this is a necessity. Enhances water resistance in concrete and mortar Improves plasticity and workability of mortar mixes Do not pre mix with other admixtures Do not use in...

Price £18.77 (incl. VAT)
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Cromar AlphaChem SBR Bond

Cromar AlphaChem SBR Bond

Cromar AlphaChem SBR Bond is a rubber bonding compound with excellent waterproofing qualities in cement, giving increased workability, reducing shrinkage and cracking in repairs and screeding mixes. Waterproofing, bonding & sealing aid Increases workability, durability and flexibility in mortar Prevents shrinkage and cracking...

Price £72.48 (incl. VAT)
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Fosroc Resivit

Fosroc Resivit

Fosroc Resivit is a liquid admixture which is added to mortars and concrete during production in order to accelerate their setting and hardening to quickly attain increased mechanical resistance. Complies with BS EN 934-2, BS 5075 Part 1 and with ASTM C494 Type C Acts as a catalyst in the initial hydration reactions of the cement,...

Price £0.00 (incl. VAT)
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Sika Parex Fixopierre

Sika Parex Fixopierre

Parex Fixopierre is a water vapour-permeable and microporous substrate porosity regulator and key coat admixture, particularly suitable for lime or earth based substrates where high breathability of the substrate is required or where a high absorption substrate is expected. Improves the adhesion of façade renders by reducing the risk of the...

Price £89.89 (incl. VAT)
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Mapei Mapetard ES

Mapei Mapetard ES

Set-retarding admixture for rapid-setting cementitious mortar. Consumption: one 250g bottle per 25kg bag of Planitop Smooth & Repair R2 or Planitop Smooth & Repair R4 Available as a box of 25 x 250g For professional use only More Information Delivery Info

Price £118.25 (incl. VAT)
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Mapei Mapescreed 704

Mapei Mapescreed 704

Mapei Mapescreed 704 is a special acrylic-based plasticising and water-reducing admixture for cementitious screeds, for internal and external screeds on which ceramic, natural stone, parquet, resilient, carpet, etc. flooring is to be laid. Suitable for: Low-shrinkage screeds that must set to foot traffic in 12-24 h Screeds with a high...

Price £137.51 (incl. VAT)
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Sika UCS Pak

Sika UCS Pak

Sika UCS Pak is a powdered underwater/anti-washout admixture formulated to increase the cohesion of concrete, enabling significant reductions in both binder washout in underwater concrete and static segregation for piled concrete in absorbent ground. Strong increase in cohesion Extended workability Superior anti-washout properties...

Price £302.50 (incl. VAT)
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SikaMix Plus

SikaMix Plus

SikaMix Plus is a ready to use plasticising liquid admixture for mortars and plaster. Increases workability and improves the quality of mortars, renders and plasters. It is a liquid ultra stable ‘micro’ air entraining mortar plasticiser designed to enhance the workability and freeze thaw resistance of brick and block laying mortars....

Price £13.19 (incl. VAT)
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Instarmac UltraCrete...

Instarmac UltraCrete Perma-Soil Stabiliser

Turns excavated spoil into backfill within minutes. Ideal for use with small utility excavations, backfilling poles, water meters and water tobies. Appendix A9 approved Can be re-excavated Cost saving Eliminates the need to haul away spoil Reduces the need for virgin aggregates More Information Delivery Info

Price £1083.22 (incl. VAT)
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Cromar Powder Mortar Tone

Cromar Powder Mortar Tone

Cromar Powder Mortar Tone is a permanent Oxide Powder cement colouring. Permanent cement colourant. For all types of mortar, rendering, concrete and pointing Please note: Colours shown against products are simply a representation and are not exact. More Information Delivery Info

Price £34.46 (incl. VAT)
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Cromar AlphaChem 3 in 1...

Cromar AlphaChem 3 in 1 Admixture

Cromar AlphaChem 3 in 1 Admixture is a triple action admixture that waterproofs, plasticises and retards render mixes to assist workability and reduce water penetration. Allows larger areas to be covered in one application. Air entraining, chloride free admixture that waterproofs, plasticises and retards in one application Improves...

Price £19.57 (incl. VAT)
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Enhancing Material Performance with Repair Admixtures

Specialist repair admixtures are chemical additives that significantly improve the properties of materials like concrete, mortar, and cement. These admixtures provide solutions to common construction challenges, enhancing durability, flexibility, and overall performance, particularly in demanding environments. They are ideal for creating more resilient repairs, especially in conditions that threaten the longevity of building materials.

 

Tailored Solutions for Every Condition

Repair admixtures offer vital benefits that address specific issues, such as water absorption, freezing temperatures, and extended curing times. These additives enhance the workability of construction materials and improve their resistance to environmental stress, making them indispensable for contractors and builders dealing with fluctuating site conditions.

 

Ideal Applications for Repair Admixtures

These products are often used in repairing concrete, masonry, and other cement-based materials. They are especially valuable for outdoor surfaces, underground constructions, and cold-storage areas like freezers or walk-in chillers.

  • Combat Water Ingress – Waterproofers reduce water absorption in substrates, protecting against moisture damage.
  • Boost Workability – Plasticisers improve workability and increase freeze-thaw resistance, reducing the chances of cracking and crazing.
  • Accelerate the Process – Accelerators and hardeners shorten setting, curing, and drying times, speeding up the repair process.
  • Seamless Colour Matching – Colourants help match existing masonry, mortar, and cement colours.
  • Cold-Weather Application – Winter additives enable the use of materials in cold or sub-zero temperatures, ensuring proper curing even in harsh environments.
  • Frost Protection – Frostproofers prevent frost from interrupting curing, offering essential protection in cold climates.