Built Right. Designed for Long-Term Performance
Protect new concrete from day one with repair and protection systems designed to maintain durability while reducing environmental impact.
Sika’s solutions for new build concrete repair are developed to address early-stage defects and support longer service life. By reducing the need for future repairs and optimising material use, these systems contribute to lower lifecycle impacts (see product-specific environmental data for details).
KEY BENEFITS:
✔ Formulations aligned with PAS 2080 carbon management principles
✔ Systems designed to address early-stage defects and improve durability
✔ Solutions that support extended service life and reduced maintenance requirements
✔ Options developed to reduce environmental impact compared with standard repair materials (see product data for quantified results)
Addressing Common New Build Defects
Surface pinholing, shutter damage, honeycombing, cracking and voids are common in new concrete structures. Early intervention helps maintain structural integrity and reduce future repair requirements.
Sika’s repair systems are designed to:
- Correct defects at an early stage
- Restore performance and finish quality
- Support long-term durability of the structure
Repair Mortars (MonoTop® Range)
Low-carbon repair mortars developed to reduce embodied CO₂ compared with conventional cement-based alternatives (specific reductions vary by product—see technical documentation).
Designed for high durability and effective repair of minor defects in new build applications.
Protective Coatings
(Sikagard®-5500)
Coatings that enhance resistance to environmental exposure and contribute to longer service life of concrete elements.
High-Performance Grouting (SikaGrout®-800)
Cementitious grout solutions for anchoring and filling applications where strength and precision are required.
Chemical Anchoring (AnchorFix® Range)
Anchoring systems for structural components in new builds, designed to ensure reliable fixing performance.
From Inspection to Protection
Addressing defects early is essential to maintaining performance and reducing long-term repair needs.
A typical repair approach includes:
Following appropriate repair procedures supports longer service life and reduces the need for additional materials over time.
Protecting Concrete Surfaces
Additional protection systems, such as anti-graffiti coatings, help maintain appearance and reduce maintenance cycles.
For example, protective coatings can:
- Reduce cleaning frequency
- Maintain surface quality
- Extend intervals between maintenance interventions
Supporting Environmental Performance
Environmental performance depends on product selection, application method, and project design.
- For transparent assessment: CO₂ impact data is available at product level (e.g. EPDs or internal data)
- Recycled content and formulation details vary by product
- Full technical and environmental information can be accessed via product datasheets
Get Expert Advice
For project-specific recommendations and technical support, contact the Sika team.
New Build - Repair Guide
From surface preparation to curing.
The information provided in this section is for general guidance only and does not replace the need for detailed application instructions. All Sika products must be used in accordance with the relevant Product Data Sheets (PDS), Method Statements, and applicable regulations. Users are responsible for verifying product suitability and compliance. For tailored technical advice, please contact Sika Technical Services.
DEFECT IDENTIFICATION & MARK-OUT
Surface Preparation:
Mark defective concrete
Concrete Removal:
- Using a high pressure water jet, 1,100bar (large area)
- OR with a hammer drill (medium area)
- OR hammer and chisel (small patch repairs)
Remove tie wires, nails etc.
Remove only defective concrete as instructured
Do not reduce structural integrity
CUTTING DEPTHS
Extent of Concrete Removal:
- Remove concrete minimum 15 mm behind main bars
Correct Substrate Preparation:
- Rough surface (2 mm minimum)
- Cut sides more than 90" to avoid under cutting and maximum 135° to reduce debonding around edges
- Substrate shall be sound with no loose material
Inform a supervisor immediately if there are any cracks in the substrate.
CLEANING REINFORCEMENT
How to Clean Reinforcement:
Remove all
- Tie wires
- Mortar/concrete
- Rust/scale
- Other loose material
Removal Techniques:
1. Steel wire brush or hand/power tools
- Technique applicable only in carbonated concrete and under environmental constraints where techniques 2 and 3 cannot be used.
- Reinforcement uniformly cleaned
2. Abrasive blast cleaning techniques
- Reinforcement uniformly cleaned
- If chlorides are present reinforcementshould be cleaned with water afterwards
3. High pressure water jet ting (1100 bar min)
- Reinforcement uniformly cleaned
Inform a supervisor immediately of any damaged reinforcement.
CORROSION APPLICATION
Application of Corrosion Protection:
- Apply two 1 mm thick coats (total 2 mm minimum)
First coat must be hardened before it is ready for the second coat.
Prior to applying the repair mortar, the corrosion protection must be dry.
BONDING PRIMER APPLICATION
Applying Bonding Primer (if specified):
- Wet the substrate
- Wipe away excess water
Application Techniques:
- For small patches brush firmly onto surface
HAND PLACED CONCRETE REPAIR MORTAR APPLICATION
Application Techniques:
- Press the repair mortar firmly into the repairarea using a trowel and/or hand
- Apply second coat, when first coat is dry ( if application depth exceeds products maxium coat thickness)
- Profile the surface and finish with a trowel
- For best results, finish the surface with a PVC or wooden trowel, do not spray additional water over the surface.
OVERHEAD CONCRETE REPAIR MORTAR APPLICATION
Application Technique:
- Apply mortar tightly behind reinforcementuntil bars are covered
- Press firmly to ensure pores in concretesubstrate are filled
- From same end apply second coat in samedirection as first
- Repeat coats until void is filled
- Smooth surface using a wooden trowel
LARGE SECTION MICRO CONCRETE APPLICATION
Surface Preparation
- Wet the substrate (if no bonding primer applied)
- Wipe away excess water
Small area: with sponge
Large area: with air pressure
- Fix shutter as required.
- Mix and pour
CONCRETE FAIRING COAT APPLICATION
Surface Preparation:
- Wet and clean the surface with water (180 bar)
Smoothing or Levelling Mortar:
- Apply vertically using toothed trowel
- Apply with trowel approximate 45° to surface
- When the first coat is hard, apply second coat
- After product has set, smooth surface usinga wooden trowel
Use different size toothed trowel for required coat thickness
CONCRETE REPAIR CURING
Curing Protection:
Protect application from
- Rain
- Sun
- Frost
- Wind
* Apply as soon as possible after application to avoid surfacecracking / crazing
Curing Methods:
- Plastic sheeting
- Fabric and water
- Other membranes
If no subsequent coating is to be applied on the surface an approved curing agent (e.g.Sika® Antisol®) could be used.
STORAGE AND APPLICATION CONDITIONS
Storage:
- Dry and cool conditions
- Undamaged original packaging
Application:
Protect area from
- Direct sunlight
- Wind
- Rain
- Frost
Temperature:
Check acceptable limits
- Ambient temperature
- Substrate temperature
Do not mix and apply the product in direct sunlight.
Protect Your Concrete – and Your Image
Sikagard®-850 Clear – Invisible Protection Against Graffiti & Posters
New concrete doesn't just need to be strong — it needs to stay clean, professional, and protected. Sikagard®-850 Clear is a high-performance, non-sacrificial anti-graffiti and anti-fly poster coating that shields surfaces from vandalism while preserving aesthetics. Whether it’s a wall, façade, or site hoarding, one simple application gives lasting, low-maintenance protection.
KEY ADVANTAGES:
Ready to use - no dilution with solvent necessary at the job site.
Permanent - graffiti can be typically removed more than 50 times without damaging the protection, or requiring a refresher coat, when using non-aggressive cleaning techniques.
Poster prevention – fly poster does not bond onto protected substrate or can be easily removed, even after many cleaning cycles.
Semi-matt aspect. Clear aspect when using the fair-faced concrete build-up.
No chemical agents required for cleaning.
With Sika, you can build with confidence from day one. Our sustainable repair and protection systems not only safeguard new concrete assets but also extend their service life while reducing environmental impact.
Get in touch with our team to explore the right solution for your project.