Epoxy Repair

Epoxy Repair is a category of resin-based construction materials used to repair, bond, fill or reinstate selected defects in concrete and other compatible substrates.

Most epoxy repair systems contain an epoxy resin and a compatible curing agent. Some formulations also include mineral fillers, aggregates or other additives to achieve the required consistency and mechanical properties.

Different grades are designed for:

• Concrete crack repair.

• Surface patching.

• Edge and corner repairs.

• Filling localised cavities.

• Bonding concrete components.

• Industrial floor repairs.

• Selected structural restoration.

• Equipment foundation repairs.

Yaseen Construction Products sources epoxy repair materials for concrete repair specialists, industrial contractors, civil engineering companies, infrastructure contractors and procurement teams.

What Is Epoxy Repair Material?

Epoxy repair material is a resin-based compound used to restore or bond compatible substrates.

Unlike cementitious repair mortar, epoxy materials cure through a chemical reaction between resin and hardener.

The cured material’s properties depend on:

• Resin chemistry.

• Hardener type.

• Filler content.

• Mixing ratio.

• Application thickness.

• Substrate preparation.

• Curing temperature.

• Exposure conditions.

Epoxy repair materials should be selected according to the actual repair requirement rather than treated as universal concrete repair products.

Types of Epoxy Repair Materials

Epoxy Repair Paste

Epoxy repair paste is a thick, generally non-sag compound designed for selected surface and localised repairs.

Depending on the formulation, it may be used for:

• Filling small cavities.

• Repairing concrete edges.

• Surface patching.

• Bonding suitable components.

• Reprofiling damaged areas.

The maximum application thickness must be verified.

Epoxy Repair Putty

Epoxy putty is a mouldable or trowel-applied compound used for localised repairs.

Suitable grades may be used for:

• Filling holes.

• Repairing chipped edges.

• Reprofiling damaged corners.

• Sealing selected defects.

• Repairing compatible industrial components.

The product’s strength, chemical resistance and substrate compatibility must be confirmed.

Epoxy Crack Repair Resin

Low-viscosity epoxy resins are available for injecting suitable cracks in concrete.

Selected formulations may be used for approved structural crack bonding.

Crack movement, moisture conditions and the cause of cracking must be assessed before injection.

Epoxy Repair Compound

Filled epoxy repair compounds contain resin, hardener and selected fillers.

They may be used for:

• Concrete surface reinstatement.

• Industrial floor patching.

• Localised equipment foundation repairs.

• Selected high-strength repair applications.

The permitted repair depth and load-bearing properties depend on the formulation.

Fast-Curing Epoxy Repair Material

Fast-curing epoxy grades are available for selected maintenance applications where reduced downtime is required.

Pot life, curing time and early strength depend on temperature and formulation.

Chemical-Resistant Epoxy Repair Material

Specialised epoxy repair compounds may be formulated for resistance to specified chemicals.

Chemical resistance must be verified for the actual substance, concentration, temperature and exposure duration.

Epoxy Repair Technical Specifications

Actual specifications must be verified using the selected manufacturer’s technical data sheet.

How Epoxy Repair Materials Work

Epoxy repair systems cure through a chemical reaction between the resin and hardener.

After correct mixing, the material develops a hardened resin structure.

Depending on the formulation, this can provide:

• Adhesion to compatible substrates.

• Mechanical strength.

• Resistance to selected chemicals.

• Dimensional stability.

• Abrasion resistance.

• Localised repair capability.

These properties are product-specific.

A strong epoxy compound cannot compensate for unsound concrete, ongoing structural movement or an incorrectly designed repair.

Epoxy Repair vs Cementitious Repair

Epoxy and cementitious repair systems should be selected according to substrate compatibility, repair geometry, exposure conditions and structural requirements.

Epoxy Repair vs Epoxy Repair Mortar

Epoxy Repair is a broad product category covering several resin-based repair forms.

Epoxy Repair Mortar is a more specific formulation containing epoxy resin, hardener and graded fillers or aggregates.

Epoxy repair mortar is commonly used for selected patching and reinstatement applications where a trowel-applied, aggregate-filled repair material is required.

Liquid epoxy resin or epoxy putty should not automatically be treated as equivalent to epoxy repair mortar.

Epoxy Repair for Concrete Cracks

Selected epoxy resins may be used to repair stable concrete cracks.

Before repair, the contractor should assess:

• Crack width.

• Crack depth.

• Crack movement.

• Structural significance.

• Concrete condition.

• Moisture.

• Repair accessibility.

Structural crack injection requires engineer approval.

Epoxy crack repair does not eliminate the cause of cracking.

Epoxy Repair for Spalled Concrete

Epoxy repair compounds may be suitable for selected localised spalling repairs.

However, larger areas of deteriorated concrete may require a cementitious repair system or another engineer-approved method.

Where reinforcement corrosion is present, the repair must address the underlying deterioration mechanism.

Epoxy Repair for Industrial Floors

Specialised epoxy repair compounds are used for selected industrial floor repairs.

Applications may include:

• Localised surface defects.

• Damaged floor edges.

• Small cavities.

• Equipment impact damage.

• Selected chemical-resistant repairs.

Product selection should consider:

• Traffic loading.

• Abrasion.

• Chemical exposure.

• Repair depth.

• Return-to-service time.

• Substrate moisture.

Epoxy Repair for Concrete Edges and Corners

Non-sag epoxy pastes and putties may be used to restore selected damaged edges and corners.

The repair material must be suitable for:

• Repair geometry.

• Expected loading.

• Bond requirements.

• Application orientation.

• Environmental exposure.

Epoxy Repair for Equipment Foundations

Selected epoxy repair systems may be used for localised defects around equipment foundations.

The repair design must consider:

• Vibration.

• Dynamic loading.

• Bond strength.

• Thermal movement.

• Repair depth.

• Chemical exposure.

Epoxy repair compounds should not be substituted for specified machinery grouts without engineering approval.

Epoxy Repair for Marine and Coastal Structures

Specialised epoxy repair materials may be used in approved coastal or marine applications.

Selection should consider:

• Chloride exposure.

• Moisture conditions.

• Chemical exposure.

• UV exposure.

• Substrate movement.

• Repair durability.

Not every epoxy repair material is suitable for continuous immersion or wet-surface application.

Surface Preparation

Before applying epoxy repair material:

• Identify the cause of damage.

• Remove loose and unsound concrete.

• Prepare sound repair edges.

• Remove dust and contamination.

• Remove oil and grease.

• Check substrate moisture.

• Prepare the required surface profile.

• Inspect exposed reinforcement.

• Apply primer where specified.

• Confirm application temperature.

Poor surface preparation is a common cause of epoxy repair failure.

Mixing and Application Guidelines

Before Mixing

• Review the approved repair method.

• Confirm the correct product grade.

• Check the product shelf life.

• Prepare suitable mixing equipment.

• Confirm the mixing ratio.

• Check the pot life.

• Prepare the repair area.

Mixing

• Combine resin and hardener in the specified proportions.

• Mix thoroughly using suitable equipment.

• Add fillers only where instructed.

• Avoid excessive air entrainment.

• Do not add unapproved solvents.

• Do not alter the mixing ratio.

• Use the material within its working time.

Paste and Putty Application

• Press the material firmly onto the prepared substrate.

• Fill the defect completely.

• Avoid trapping air.

• Maintain the permitted repair thickness.

• Shape the repair as required.

• Finish before the material begins to set.

Liquid Resin Application

• Prepare the crack or repair area.

• Install injection ports where required.

• Mix the resin according to instructions.

• Inject or place using the approved method.

• Control injection pressure.

• Allow the material to cure.

After Application

• Protect the repair from contamination.

• Avoid premature loading.

• Maintain the required curing temperature.

• Inspect the completed repair.

• Confirm the specified cure before returning the area to service.

Common Epoxy Repair Problems

Poor Adhesion

Possible causes include:

• Weak concrete.

• Dust or contamination.

• Incorrect surface profile.

• Excessive substrate moisture.

• Incompatible primer.

Incomplete Curing

Possible causes include:

• Incorrect mixing ratio.

• Poor mixing.

• Low temperature.

• Expired material.

• Contamination.

Cracking or Debonding

Possible causes include:

• Structural movement.

• Thermal movement.

• Excessive repair thickness.

• Incompatible material selection.

• Poor substrate preparation.

Excessive Heat During Curing

Epoxy materials generate heat during curing.

Large mixed quantities or thick repairs may cause excessive temperature rise.

The manufacturer’s maximum mixing quantity and placement thickness must be followed.

Relevant Standards

The applicable standard depends on whether the product is a bonding resin, injection material, filled repair compound or another epoxy repair system.

Compliance must be supported by manufacturer documentation.

Selecting the Correct Epoxy Repair Material

Buyers should confirm:

• Repair objective.

• Concrete condition.

• Structural or non-structural application.

• Crack or cavity dimensions.

• Repair depth.

• Vertical, horizontal or overhead application.

• Substrate moisture.

• Required bond strength.

• Compressive strength.

• Chemical exposure.

• Traffic or equipment loading.

• Pot life.

• Curing time.

• Applicable standards.

• Packaging and project quantity.

Structural repairs require engineer approval.

Packaging and Material Consumption

Epoxy repair materials are generally supplied in pre-proportioned resin and hardener kits.

Some filled repair systems include a separate aggregate or filler component.

Consumption depends on:

• Repair dimensions.

• Material density.

• Surface irregularity.

• Application losses.

For a filled repair cavity:

Material required (kg) = Repair volume (litres) × Mixed density (kg/litre)

For example, a 12-litre repair cavity filled with a material having an assumed mixed density of 1.8 kg/litre requires approximately 21.6 kg before waste.

For surface application:

Theoretical consumption (kg/m²) = Applied thickness (mm) × Mixed density (kg/litre)

Actual consumption should follow the manufacturer’s declared yield.

Equivalent Brands and Product References

Yaseen Construction Products can review sourcing enquiries against relevant epoxy repair and bonding ranges, including:

• Sikadur epoxy repair and bonding products.

• Fosroc Nitomortar epoxy repair systems.

• Mapei Eporip and approved epoxy repair products.

• Other approved specialist construction chemical manufacturers.

Equivalent products must be compared using intended application, mixing ratio, consistency, bond strength, mechanical properties, moisture tolerance and curing requirements.

Brand references are for technical comparison and product identification. They do not imply manufacturer affiliation, guaranteed availability or automatic equivalence.

Epoxy Repair Material Price and Bulk Procurement

Pricing depends on:

• Epoxy formulation.

• Resin and filler content.

• Structural performance.

• Chemical resistance.

• Repair thickness.

• Curing time.

• Packaging.

• Manufacturer.

• Order quantity.

• Delivery destination.

For project comparisons, evaluate cost per kilogram and cost per litre of installed repair material.

International Epoxy Repair Material Supply

Yaseen Construction Products supplies and exports epoxy repair materials for concrete restoration, industrial floor repairs, structural maintenance and infrastructure rehabilitation across the UAE, Saudi Arabia, Qatar, Oman, Kuwait and African countries, including Nigeria, Kenya, Ghana, Tanzania, Uganda, Ethiopia, South Africa, Egypt, Morocco, Rwanda, Zambia, Mozambique and Senegal.

We support concrete repair contractors, industrial maintenance teams, civil engineering companies, infrastructure contractors and procurement teams with specification-based sourcing, bulk quotations and international shipment arrangements.

Product availability, pricing and delivery schedules depend on formulation, packaging, quantity and destination.