Polymer Modified Repair Mortar

Polymer-modified repair mortar (PRMTM 400 code ) is a two-component mortar that contains two materials, powder and polymer liquid, and does not require much operation after application. This type of concrete repair mortar has higher mechanical characteristics, efficiency and performance and its setting is faster than one-component polymer base restoration mortar.

repair mortar is a mortar with a strength equal to or greater than the strength of concrete and has the property of fast setting and good adhesion to the concrete surface. From concrete repairs mortar use to repair in parts that are damaged and weakened.


What is concrete polymer repair mortar?

Concrete is one of the strongest and most durable materials made by human being. Materials that have sufficient strength to build heavy and high-rise structures. However, these high-strength materials are not without defects and need to be repaired and rebuilt during the life of the structures. Having a professional strategy during the repair and reconstruction of concrete is as important as the construction stage of civil structures. Points that show the difference between a successful repair of concrete structures and the continuation of a costly failure.

Polymer concrete repair mortar (PRMTM400) is one part of repairing mortars of Afzir company that is designed in two parts with the aim of performing concrete repairs. This polymer concrete mortar is a strong inhibitor in the continuation of erosion and corrosion of concrete and has the conditions of use in various horizontal and vertical structures.

Polymer concrete mortar is a modified type of concrete repair material that creates superior capabilities of concrete in construction structures such as industrial warehouses, parking lots, improving the resistance of roads to heavy loads and abrasions, etc.

Types of damage to concrete

Damage to concrete due to execution

Damage due to execution that needs to be repaired concrete including honeycombing, sanding, lack of cleaning inside the formwork before concreting, improper execution of formwork that causes joint in concrete, mold dislocation and elc.

Damage to concrete due to environmental conditions and operation

This type of damage is due to the impact of environmental conditions and operation, which includes the impact of corrosive substances in the surrounding environment, loss of concrete cover and as a result the appearance of rebar and It needs concrete repair materials.

It should be noted that the detection of damaged concrete types is often not visible to the naked eye and concrete testing is required.

Types of damaged concrete repair methods

What is the best way to repair concrete in a structure? Depending on the required thickness of the concrete repair mortar layer, specialized methods of concrete repair can be selected.

Mortar layer thickness less than 5 cm

In thicknesses less than 5 cm, repair mortar can be done in two ways. In the first method, after preparing the concrete surface, the mortar is sprayed on the damaged concrete surface manually or by using a special spraying device (shotcrete). In the second method, the damaged area can be repaired using a spatula.

Mortar layer thickness more than 5 cm

In this method, after preparing the concrete surface to apply the repair mortar, the formwork is molded and then the repair mortar is applied on the concrete surface.

In addition to the required thickness of the repair mortar layer, the conditions of execution and the place to be repaired (beam-roof-column) are effective in choosing the method of execution.

What are the destructive factors of concrete structures?

Concrete repair and reinforcement of concrete structures is a full-fledged construction process that requires a complete and planned strategy. In order to properly assess the project conditions and prepare the repairing plan and provide the preliminary conditions for the preparation of the concrete repair project, we must have a correct technical understanding of the type of failure and the cause of the concrete failure. In the following, we must evaluate sufficient information about the use conditions of the structure and how to choose the right concrete repair material to achieve stable and appropriate conditions.

Concrete failure can be the result of a combination of structural problems of the structure along with problems caused by improper use of the structure. Concrete cracking, scaling, leakage, premature or excessive wear, subsidence, deflection, and disintegration are all set of failures that ultimately lead to concrete failure and structural damage. To properly use polymer concrete mortar or any other repair program, you must have a proper technical understanding of the types of concrete failure conditions at the project level and plan to create a successful repair strategy and choose the appropriate method of concrete repair by examining the cause of the failures.

What is the market for polymer concrete mortar?

The global market for the production and use of concrete repair mortar is developing. Thermal polymer mortar is one of the materials that has a significant growing trend in this field. In 2012, the market value of concrete repair mortars was estimated at $ 2 billion, which is expected to grow to $ 3.6 billion by 2027. The growing trend of the market for various types of concrete repair mortars is over 7% per year.

Numerous factors influence the development of market value up to the price of concrete repair. Certainly the increase in population and the need to build more instruments is the main reason for consuming more of these compounds. At the same time, the demand for extending the life of existing buildings is also influential. However, for almost a century, humans have been using concrete to build their structures, and there are certainly plenty of dilapidated buildings in dire need of major repairs. The need for the global market value of ready-mixed concrete repair mortars, especially polymer-based concrete repair mortar, makes it more visible and definitely affects the price of concrete repair mortar. Afzir Company is active in the field of selling concrete repair mortar, and customers and contractors can inquire about the amount of materials needed to purchase and the price of different types of concrete mortar with a single call, after receiving advice from the company’s experts.

Key Features

  • Fast setting and good adhesion to the substrate surface
  • High compressive and flexural strength
  • Mortar without shrinkage to prevent surface cracks
  • Suitable slump with execution method
  • High viscosity concrete repair mortar
  • Maximum resistance in the shortest time
  • Resistant to environmental conditions such as corrosive materials and freezing cycles
  • Having a coefficient of thermal expansion close to concrete to prevent the separation of the repair mortar from the substrate concrete due to expansion due to heat change
  • Full compatibility with all types of concrete


  • Using 400 ™ PRM polymer concrete repair mortar, we are able to repair all kinds of damage related to concrete members, including damage caused by execution and operation, and damage caused by destructive environmental conditions.


  • In two components: powder (25 kg) and polymer liquid (5 liters)


  • grey paste (after mixing)

technical specifications

Mechanical Properties
Compressive strength

28.5 MPa

tensile strength

5.51 MPa

flexural strength

8.27 MPa

Application Instructions

The steps of repairing damaged concrete include the following steps:

  • Removal of damaged concrete to apply repair mortar
  • Dust removal using air pressure or washing the surface with water, for better mixing of concrete repair mortar with old concrete
  • Execution of concrete restorative mortar on the surface using a suitable method
  • Processing of concrete repair mortar

technical documents

Technical Data Sheet (TDS)


Safety Data Sheet (SDS)




Photo Gallery

Frequently Asked Questions

Is polymer repair mortar used to repair concrete surfaces?

Polymer repair mortar is commonly used for a wide range of concrete repair applications including honeycomb, bolt holes, accidental damage, fractures and filling gaps and cavities.

Is polymer repair mortar suitable for repairing concrete coatings on rebars?

Yes, this type of mortar is a good option for coating on rebars.

Is polymer repair mortar used for vertical surfaces?

Yes, due to its instant setting, polymer repair mortar is a good choice for use on vertical surfaces.

How many components does polymer repair mortar have?

This polymer repair mortar is in two components: powder (25 kg) and polymer liquid (5 liters).

How to apply repair mortar in thicknesses less than 5 cm?

After preparing the concrete surface, the mortar is sprayed on the damaged concrete surface by spraying manually or by using a special spraying device (shotcrete). In the second method, the damaged area can be repaired using a spatula.

What measures should be taken to apply a mortar layer thickness of more than 5 cm?

After preparing the concrete surface to apply the repair mortar, formwork (molding) is performed and then the concrete surface repair mortar is applied.

Is Afzir Company Polymer Concrete Repair Mortar, used for chemical and corrosive environments?

In the chemical composition of polymer concrete repair mortar, strong compounds with anti-corrosion ability of concrete are used, which are suitable for working in chemical environments.

Does the polymer concrete repair mortar suffer from surface cracks after application?

This mortar is non-shrinking; therefore, it prevents the formation of surface cracks.

Why does not separation from the bed surface occur after working with polymer repair mortar?

Due to having a coefficient of thermal expansion close to concrete, it prevents the repair mortar from separating from the bed concrete because it suffers from expansion due to heat change.


Afzir Company will provide you concrete resurfacing solutions with concrete repairing mortars.


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