Addressing cracks in concrete is crucial for maintaining the structural integrity and safety of these areas.
Each product has been carefully selected to meet fire safety standards, structural reliability, and application ease - helping contractors, engineers and maintenance teams carry out reliable concrete repairs in even the harshest conditions. Keeping concrete repair safe and reliable in LUL-regulated zones means using approved materials that don’t compromise on strength or safety. Promain supplies a full range of concrete repair mortar products that meet the strict criteria for London Underground (LUL APR) use.
These repair mortars are designed for durability and ease of use in both indoor and outdoor applications, where structure, appearance, and long-term performance matter most.
Concrete Repair
Concrete repair is a crucial process for maintaining and restoring damaged concrete structures, including concrete floors, walls, and buildings. Over time, concrete can deteriorate due to various factors such as corrosion, structural damage, and water infiltration, leading to cracks, holes, and spalling. Effective concrete repair solutions are essential to prevent further damage and ensure the longevity of concrete surfaces. In the UK, concrete repair products and services are widely available, offering a range of solutions for quick repairs, including epoxy repair mortar, concrete repair mortar, and other specialised products.
Structural Integrity Starts with Proper Repair
Concrete structures in public and industrial spaces suffer wear from chemicals, vibration, foot traffic and weather exposure. If left untreated, cracks, spalling or exposed steel reinforcement can lead to greater corrosion and costly damage, making crack repair essential.
Promain offers solutions built for fast action and long-term results—restoring concrete surfaces, sealing expansion joints, and treating damaged concrete without compromising safety.
Why LUL APR-Approved Concrete Repair Matters
Products approved for LUL use must meet strict standards for fire resistance and smoke development. That’s why every item we supply under this category is fully compliant, safe for confined or enclosed settings, and effective for long-term use across infrastructure projects.
Common Problems Fixed with Concrete Repair Mortar
-
Fine cracks in walls, ceilings or floors
-
Crack repairs in walls, ceilings, or floors
-
Spalling or surface wear caused by impact or freeze-thaw cycles
-
Delamination or scaling near structural joints
-
Rusting or exposed steel reinforcement
-
Chemical erosion in industrial or rail areas
-
Open voids or holes needing reliable fill
Types of Repairs Our Mortars Can Handle
Whether it’s filling structural voids, smoothing rough finishes or replacing worn joints, Promain repair mortars are designed to restore durability and appearance.
These repair mortars cure quickly, bond strongly to cement, brickwork, and stone, and produce high performance results in both interior and exterior environments, with some formulations being pourable for easy application.
Epoxy Repair Mortar
Epoxy repair mortar is a high-performance, heavy-duty solution for concrete repairs, offering excellent chemical resistance and durability. This type of mortar is suitable for outdoor applications, including concrete floors, walkways, and bridges, as well as indoor applications, such as concrete walls and floors. Epoxy repair mortar is often used to fill fine cracks and holes in concrete surfaces, providing added protection against further damage. With its anti-slip properties, epoxy repair mortar is an ideal solution for high-traffic areas, including tarmac and asphalt surfaces.
Steel Reinforcement
Steel reinforcement is a critical component of concrete structures, providing strength and stability to buildings, bridges, and other concrete constructions. However, steel reinforcement can be susceptible to corrosion, which can lead to concrete deterioration.
Effective concrete repair solutions, including epoxy repair mortar and concrete repair mortar, can help to protect steel reinforcement and prevent further damage. By sealing cracks and holes in concrete surfaces, these mortars can help to prevent water infiltration and reduce the risk of corrosion.
Preparation and Application
Preparation and application are crucial steps in the concrete repair process. Before applying epoxy repair mortar or concrete repair mortar, the surface must be cleaned and prepared, including removing any dirt, dust, or debris. The mortar must then be mixed according to the manufacturer’s instructions and applied to the damaged area using a brush, trowel, or other suitable tool.
It is essential to follow the manufacturer’s instructions for application and curing times to ensure a successful repair. For further information on preparation and application, customers can visit our dedicated website or contact our customer service team.
Quick Repairs with Confidence
Our epoxy repair mortar products are ideal for quick turnaround in heavy duty or high traffic zones. They also offer excellent chemical resistance, helping protect concrete floors and vertical surfaces in stations, loading bays, or tunnels.
Cold Weather Repairs? No Problem.
Some repair mortars are formulated to cure properly even in cold conditions, meaning you won’t need to delay critical work when temperatures drop. This ensures year-round availability for contractors and facilities managers.
Precision Repair for Bridges, Platforms and Concrete Floors
From platform edges and bridge ramps to depot entrances and stairs, our repair mortars are suitable for use on all types of surfaces, even in locations where anti slip finishes are required for safety.
Safety and Environmental Considerations
When working with concrete repair products, including epoxy repair mortar and concrete repair mortar, it is essential to consider safety and environmental factors. These products can contain chemicals that may be hazardous to health and the environment, so it is crucial to follow safety guidelines and use protective equipment, such as gloves and masks. Additionally, customers should ensure that they dispose of any waste materials responsibly and in accordance with UK regulations. By choosing high-quality, environmentally friendly concrete repair products, customers can help to minimise their environmental impact while ensuring a successful and long-lasting repair.
For more information on safety and environmental considerations, customers can review our product datasheets and safety guidelines, available for download on our website.
LUL-Approved Mortar Repair Products Supplied by Promain
Mapei Planitop 200 - Smoothing mortar for fine cracks and surface repairs. Ideal for vertical and overhead work where a fine finish is required.
Fosroc Conbextra TS - Precision grout used under baseplates or to fill voids where excellent chemical resistance is essential.
Mapei Mapegrout T60 - High performance mortar with fibres added for additional strength on overhead, inclined or wall surfaces.
Fosroc Conbextra HF - Grout designed for deep-section pours that cures effectively in cold weather.
Fosroc Paveroc - Durable repair mortar for outdoor surfaces and concrete floors. Offers slip resistance and fast setting.
Fosroc Patchroc GP - Fast-curing mortar perfect for quick repairs to ramps, roads and heavy-duty access points.
Fosroc Thioflex 600 Gun Grade - Flexible joint sealant for use on expansion joints in asphalt and concrete. Provides added protection against water ingress and debris.
Save Time and Reduce Costs
Using the right mortar the first time around saves labour and reduces rework. All of our products are supplied with technical data, recommended depth, and application methods so you can get the job done right.
Easy to Mix, Apply and Cure
These mortars are easy to mix, apply by brush or trowel, and cure in short timeframes. Suitable for both rapid repairs and more involved maintenance work.
Trusted for UK Rail and Industrial Buildings
From concrete bridges to station platforms and commercial floors, Promain’s product range is suitable for use across infrastructure settings throughout the UK.
Colour Variants Available
Some repair mortars come in multiple colour options, allowing you to visually blend the repair with the surrounding surface.
Compatible with a Wide Range of Materials
Promain’s repair mortars bond with cement, tarmac, brickwork, stone and previously painted or untreated concrete surfaces.
Products in Stock and Ready to Ship
We hold active stock levels to ensure fast dispatch. Delivery methods may vary based on the weight of the products, with heavier items requiring pallet shipping and lighter products sent via parcel carrier. All repair mortars are sold ex vat and can be reviewed directly through our dedicated website.
Long-Term Durability
Our mortars are tested for resistance to water, salts, frost and chemicals, enhancing durability and providing long-lasting performance over many years.
Interior or Exterior Repairs – One Range Covers All
From indoor stations to exposed structures, our repair mortars cover all environments without needing separate systems.
Professional Support, Every Step of the Way
Need help choosing the right mortar for the job? Our technical advisors can guide you through product selection, application, and post-repair finish.
Customer-Focused Service
Whether you’re maintaining public infrastructure or managing a private facility, Promain provides the support, stock and repair knowledge to help you maintain concrete with confidence.
Order with Confidence – Contact Us Today
Promain is more than a supplier - we’re your partner in repair. Browse our repair mortars online, compare product reviews, or speak with a specialist. We’re here to help you repair concrete surfaces properly, using quality materials from trusted suppliers.
Ready to restore your concrete with Promain’s LUL APR-approved range? Place your order online or contact us today for further information.
FAQs:
What is concrete repair mortar?
Concrete repair mortar is a formulated mix used to repair and restore damaged concrete by filling cracks, holes or voids while keeping the surface durable and secure.
What is mortar in concrete?
Mortar in concrete acts as a binder, combining sand, cement and water to create a paste that bonds aggregates and surfaces together.
What is the best mortar for concrete repair?
It depends on the job, but for overhead work or general repairs, Mapei Mapegrout T60 and Fosroc Patchroc GP offer excellent strength, fast curing, and long-term results.
How do you use DAP concrete and mortar repair?
Promain does not supply DAP products. Instead, we recommend Mapei Planitop 200 or Fosroc Paveroc for quality, approved repairs suitable for demanding environments.