14/07/2026
Over time, reinforced concrete structures may develop cracks, reinforcement corrosion, surface deterioration, and porous areas due to environmental conditions, mechanical stresses, and aging. These damages can reduce the structural performance and shorten the service life of buildings.
Sika repair mortars are high-performance repair solutions developed for restoring and protecting concrete surfaces. Manufactured in accordance with the EN 1504 European standard, these products provide reliable solutions for improving the durability of both new and existing structures.
With their excellent adhesion, high mechanical strength, and long-lasting protection properties, Sika repair mortars are widely preferred in various applications, from industrial facilities and infrastructure projects to residential buildings.
Sika MonoTop®-610 is a single-component mortar developed to protect reinforcement steel against corrosion and improve bonding between concrete and steel.
It is used as the first layer in concrete repair systems and provides a strong bonding surface, ensuring that subsequent repair mortars adhere securely to the substrate.
Main features:
Sika MonoTop®-612 is an R4 class, polymer-modified, fiber-reinforced repair mortar designed for structural concrete repairs.
Thanks to its high mechanical strength, it is particularly suitable for repairing structural elements such as:
Sika MonoTop®-620 is an R3 class surface finishing and smoothing mortar developed for fine repair applications.
It is used to create smooth and aesthetically improved concrete surfaces by correcting surface defects and imperfections.
SikaRepair®-640 is an R2 class, polymer-modified concrete repair mortar designed for practical and reliable repair of damaged concrete surfaces.
It is suitable for repairing surface defects and restoring concrete appearance.
SikaRepair®-645 is an R2 class finishing mortar designed for fine surface corrections, pore filling, and smoothing applications.
It provides an improved surface appearance and helps achieve a uniform concrete finish.
Sika repair mortar systems offer several advantages for concrete restoration projects:
✔ High mechanical strength ✔ Excellent adhesion to concrete and steel ✔ Resistance against freeze-thaw cycles ✔ Protection against reinforcement corrosion ✔ Easy application and fast repair process ✔ Compliance with EN 1504 European standards
With Sika’s wide range of repair products, the most suitable mortar can be selected according to the type and severity of concrete damage. This helps extend the service life of reinforced concrete structures while improving their durability and safety.
Sika repair mortars are manufactured according to the EN 1504 European standard, which defines requirements for concrete repair and protection products.
For protecting reinforcement steel against corrosion, Sika MonoTop®-610 is recommended as part of a complete concrete repair system.
Sika MonoTop®-620 and SikaRepair®-645 are suitable solutions for thin-layer applications, surface smoothing, and finishing works.
Sika MonoTop®-612 is an R4 class repair mortar with high mechanical strength, making it suitable for structural concrete repair applications.
Yes. Sika repair mortars can be used for both indoor and outdoor concrete repair applications when applied according to technical requirements.
