HM-500 Modified Epoxy Injection Resin

Concrete Crack Repair | Buy in Karachi

HM-500 is a high-performance, two-component modified epoxy resin adhesive specifically formulated for the pressure injection of fine to medium cracks in concrete and masonry. It is the professional choice for restoring structural integrity and permanently preventing moisture ingress. Available in convenient dual cartridges from Araish Constructors, Karachi.

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Key Features

• Ultra-Low Viscosity: Capable of penetrating hairline cracks as fine as 0.1 mm under low injection pressure.

• Superior Bond Strength: Chemically “welds” the concrete back together, restoring full structural continuity.

• Moisture-Tolerant Formula: Specially engineered to be injected into damp or wet cracks without losing adhesion.

• Non-Shrink Curing: Maintains 100% intimate contact with crack faces during and after the curing process.

• Versatile Repair: Suitable for both critical structural elements and non-structural crack sealing.

• Equipment Compatible: Designed for use with standard pneumatic or manual pressure injection equipment.

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Typical Applications

• Structural Elements: Crack repair in load-bearing columns, beams, walls, and slabs.

• Infrastructure: Sealing cracks in bridge decks, viaducts, and large retaining walls.

• Waterproofing: Leak sealing in basements, lift pits, and underground car parks.

• Industrial Floors: Repairing stress cracks in warehouse floors and heavy machine foundations.

• Structural Retrofitting: Ideal for pre-injection consolidation before applying carbon fiber (CFRP) strengthening.

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Full Product Description

HM-500 Modified Epoxy Injection Resin is the definitive solution for situations where a crack has compromised the structural monolithic behavior of a building. Its extremely low viscosity—comparable to light oil—allows it to flow deep into the concrete matrix via capillary action or low-pressure injection, filling the entire depth of the crack.

Once the curing process is complete, the injected epoxy forms a bond to the concrete faces that is physically stronger than the surrounding concrete itself. This restores the element to its original load-carrying capacity. Given Karachi’s coastal environment, the moisture-tolerant formulation is particularly vital, allowing for successful injection in damp basements or below-grade structures where dry conditions are impossible to maintain.

Professional Services: Araish Constructors supplies HM-500 in dual cartridges compatible with standard injection guns. We also offer a certified application team to carry out specialized crack injection works to international industry standards.

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Technical Specifications

Property	Specification
Components	2 (Part A + Part B)
Viscosity	Ultra-Low (Injection Grade)
Minimum Crack Width	0.1 mm
Compressive Strength	$> 65$ MPa
Bond Strength	$\ge$ Concrete Substrate Strength
Colour	Amber
Shelf Life	18 months

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Frequently Asked Questions (FAQ)

What is epoxy crack injection used for in concrete?

Epoxy crack injection is a structural repair method used to “weld” cracked concrete back together. The resin penetrates the void and bonds the internal faces, restoring the element’s original structural continuity and load-bearing capacity.

Can epoxy injection repair wet or damp cracks?

Yes. HM-500 is a moisture-tolerant resin that can be successfully injected into damp cracks. For cracks that are actively leaking water under pressure, we typically perform a polyurethane water-stop injection first, followed by HM-500 for the final structural bond.

Where can I buy epoxy injection resin in Karachi?

Araish Constructors stocks HM-500 at our location in DHA Phase 5, Karachi. We provide both the product and certified application services for complex structural repair projects.

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Contact Araish Constructors Today

Restore your structure’s integrity with Karachi’s epoxy injection specialists.

• Call / WhatsApp: +92 330 3346156

• Address: 30th Commercial Street, DHA Phase 5, Karachi