KYK MegaTamir T503 | Two-Component Epoxy Adhesive and Repair Compound

22/07/2026

KYK MegaTamir T503 | Two-Component Epoxy Adhesive and Repair Compound

KYK MegaTamir T503 | Two-Component Epoxy Adhesive and Repair Compound

Product Description

KYK MegaTamir T503 is a two-component, solvent-free epoxy resin-based adhesive and repair compound designed for high-strength bonding and repair applications.

It provides a durable bond between new and existing concrete while ensuring excellent adhesion between various construction materials. Its advanced epoxy formulation allows application even on damp surfaces without the need for a primer, delivering outstanding bonding performance and shrinkage-free curing.

Suitable for professional construction and repair projects, KYK MegaTamir T503 offers long-lasting durability, high mechanical strength, and reliable structural performance.


Application Areas

KYK MegaTamir T503 is suitable for a wide range of bonding and repair applications, including:

  • Bonding new concrete to existing concrete
  • Adhesion of stone, brick, wood, metal, mortar, and epoxy-based materials
  • Installation of precast concrete elements
  • Fixing metal profiles to concrete or metal substrates
  • Repair of non-structural cracks and voids
  • Bonding GRP (Glass Reinforced Plastic) and epoxy components

It is widely used in reinforced concrete structures, industrial facilities, infrastructure projects, maintenance works, and general construction applications.


Advantages of KYK MegaTamir T503

FeatureBenefit
Epoxy resin formulationProvides exceptional bonding strength and long-term durability
Solvent-freeEnvironmentally friendly with low odor
Primer-free applicationCan be applied directly to prepared surfaces
Suitable for damp substratesOffers greater flexibility during application
High tensile strengthWithstands mechanical stresses and heavy-duty conditions
Shrinkage-free curingEliminates volume loss after hardening
Easy mixing and applicationCan be applied using a brush, roller, or spray equipment

Technical Specifications

PropertyValue
Chemical baseTwo-component epoxy resin
ColorGray
Component A2.50 kg
Component B1.25 kg
Application temperature+10°C to +30°C
Working timeApproximately 105 minutes
StandardTS EN 1504-3, Class R4
Packaging3.75 kg set (2.50 kg + 1.25 kg)
Shelf lifeStore in original unopened packaging in a dry environment

Application Instructions

Surface Preparation

Proper surface preparation is essential for maximum bonding performance.

  • The substrate must be clean, sound, and free from dust, oil, grease, rust, and loose particles.
  • Cement laitance, bitumen, and other contaminants must be completely removed.
  • Concrete surfaces should be roughened mechanically and cleaned with compressed air before application.

Mixing

  • Mix Component A (2.50 kg) with Component B (1.25 kg) using a low-speed mixer for approximately 5 minutes.
  • Continue mixing until a completely homogeneous consistency is achieved.
  • Once mixed, the material is ready for application.

Application

  • Apply using a brush, roller, or spray equipment.
  • On damp surfaces, work the material thoroughly into the substrate using a brush to maximize adhesion.
  • Fresh concrete should be placed before the material exceeds its working time.

Cleaning

Clean all application tools immediately after use with thinner or an appropriate organic solvent before the material hardens.


Application Recommendations

  • Do not apply to frozen surfaces or where freezing conditions are expected.
  • Avoid application during rainy weather, and protect the treated surface from rain for at least 24 hours.
  • Do not apply under direct sunlight, excessive heat, or strong winds.
  • Never add foreign materials, solvents, or water to the mixed product.
  • Protect the applied surface from excessive airflow during curing.

Frequently Asked Questions (FAQ)

What is KYK MegaTamir T503?

It is a solvent-free, two-component epoxy resin adhesive and repair compound designed to provide high-strength bonding for concrete, metal, wood, brick, stone, and similar construction materials.

Can it be applied to damp surfaces?

Yes. Its epoxy formulation provides excellent adhesion even on damp substrates.

When should fresh concrete be placed?

Fresh concrete should be poured within the product's working time, approximately 105 minutes after mixing.

What is the recommended application temperature?

The substrate and ambient temperature should be between +10°C and +30°C.

Does it comply with international standards?

Yes. KYK MegaTamir T503 complies with TS EN 1504-3 and meets the requirements of Class R4 repair materials.


Conclusion

KYK MegaTamir T503 is a versatile, high-performance epoxy adhesive and repair compound developed for professional construction, repair, and bonding applications.

Its exceptional adhesion, solvent-free formulation, and compatibility with damp substrates make it an ideal solution for bonding concrete, metal, stone, brick, wood, and other construction materials while delivering long-lasting structural reliability.

KYK MegaTamir T503 — Superior Adhesion, High Performance, Permanent Reliability.