ECOFIT EP900 Injection Epoxy Resin

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Ultra-Low Viscosity Epoxy Resin for Crack Injection and Concrete Repair

Product Overview

ECOFIT EP900 Injection Epoxy Resin is a high-strength, two-component, low-viscosity epoxy resin specifically formulated for the repair and strengthening of concrete, stone, and masonry structures. By penetrating deeply into fine cracks and voids, this product creates a strong and permanent bond that restores the structural integrity and load-bearing capacity of the element. ECOFIT EP900 is highly resistant to chemical attack, moisture, and temperature fluctuations, making it suitable for a wide range of structural and non-structural applications.

Technical Specifications

Component A (Resin)

  • Appearance: Clear / Light Yellow Liquid

  • Density at 23 °C: ~1.53 g/cm³

  • Viscosity at 23 °C: ~120,000 mPa·s

Component B (Hardener)

  • Appearance: Yellow Liquid

  • Density at 23 °C: ~1.00 g/cm³

  • Viscosity at 23 °C: ~2,600 mPa·s

Mixed Product (A+B)

  • Mixed Color: Dark Grey

  • Mixing Ratio (by weight): 100 parts A : 15 parts B

  • Mixing Ratio (by volume): 100 parts A : 23 parts B

  • Density at 23 °C: ~1.46 g/cm³

  • Gel Time at 23 °C (150 g): ~540 minutes

  • Load-Bearing Time:

    • at 23 °C: 3-4 days

    • at 60 °C: 14 hours

  • Hardness (Shore D): 90

Mechanical Properties

  • Tensile Strength: 16.7 MPa

  • Strain at Break: 2.4%

  • Flexural Strength: 48.1 MPa

  • Flexural Modulus: 6580 MPa

  • Compressive Strength: 152 MPa

  • Compressive Modulus: 4570 MPa

  • Glass Transition Temperature (Tg) (DSC): 174 °C

  • Linear Shrinkage: < 0.1%

Note: These values are typical and may vary slightly based on environmental conditions and test methods. For more precise data, please contact the technical team at the Iranian Concrete Repair Institute.

Typical Applications

ECOFIT EP900 is widely used for:

  • Structural Crack Repair: Filling fine, hairline to large cracks in concrete, brick, stone, and masonry elements (including columns, beams, foundations, walls, and slabs).

  • Structural Reinforcement: Restoring the integrity and load-bearing capacity of damaged structures.

  • Waterproofing: Preventing water and corrosive agents from penetrating the structure.

  • Void Filling: Filling voids and cavities within concrete and masonry to enhance strength.

  • Industrial Floor Repair: Repairing and strengthening concrete floors in industrial environments subjected to dynamic loads and chemical exposure.

  • Bridge and Marine Structure Repair: Mending fatigue or corrosion-induced cracks in bridge decks, piers, and for sealing.

  • Laminating: Creating a strong bond between new and old concrete layers.

Key Advantages of ECOFIT EP900

  • Superior Adhesion and Mechanical Strength: Forms an exceptionally strong and permanent bond with concrete, steel, stone, and other construction materials.

  • Low Viscosity: Allows for excellent penetration into even the finest cracks and capillaries (down to 100 microns).

  • High Durability: Provides a long-lasting repair solution that is resistant to environmental factors and degradation.

  • Chemical Resistance: Stable against a wide range of chemicals.

  • Minimal Shrinkage: Negligible shrinkage upon curing ensures a complete and watertight seal.

  • Moisture Tolerance: Certain formulations are suitable for use in damp conditions.

  • Cost-Effectiveness: An economical solution compared to traditional "demolish and rebuild" methods.

  • Quick & Easy Installation: Reduces project downtime and minimizes disruption to ongoing activities.

  • Restores Aesthetics: Improves the appearance of repaired surfaces and increases property value.

  • Environmentally Friendly: Minimizes waste and environmental impact compared to traditional repair methods.

Standards and Compliance

ECOFIT EP900 Injection Epoxy Resin is produced in compliance with international standards for epoxy injection resins used in structural applications. These standards cover tests related to tensile, compressive, flexural, and bond strength to concrete, as well as other physical and mechanical properties. Some common standards this product may conform to include:

  • ASTM D1652: Standard Test Method for Epoxy Content.

  • ASTM D638: Standard Test Method for Tensile Properties of Plastics.

  • ASTM D790: Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics.

  • ASTM D695: Standard Test Method for Compressive Properties of Rigid Plastics.

  • ASTM C881/C882: Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete.

  • AASHTO T237: Standard Test Method for Slant Shear Strength of Concrete.

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