KYK MegaFloor BYS Z121 | Quartz-Based Concrete Surface Hardener (Grey, Red, Green)

22/07/2026

KYK MegaFloor BYS Z121 | Quartz-Based Concrete Surface Hardener (Grey, Red, Green)

KYK MegaFloor BYS Z121 | Quartz-Based Concrete Surface Hardener (Grey, Red, Green)

Product Description

KYK MegaFloor BYS Z121 is a cement and mineral-based, quartz-containing, pre-colored concrete surface hardener designed for improving the durability and appearance of fresh concrete surfaces.

Applied as a dry shake powder on fresh concrete, it significantly increases abrasion resistance, surface hardness, dust resistance, and aesthetic quality. Its ready-to-use formulation provides a practical solution for industrial and commercial concrete floors exposed to heavy traffic.

Applications

KYK MegaFloor BYS Z121 is suitable for:

  • Warehouses and industrial facilities
  • Factories and production areas
  • Shopping malls and commercial spaces
  • Restaurants and high-traffic public areas
  • Interior and exterior horizontal concrete surfaces
  • Fresh concrete floor applications

It is especially preferred where durable, wear-resistant, and visually attractive concrete surfaces are required.

Advantages of KYK MegaFloor BYS Z121

Enhanced Surface Strength with Quartz Aggregate

The quartz content increases the hardness, abrasion resistance, and impact strength of concrete surfaces.

Improved Wear Resistance

Provides superior resistance against mechanical wear and heavy pedestrian or vehicle traffic.

Dust-Free Surface Performance

Reduces water absorption and prevents surface dusting, creating cleaner and longer-lasting floors.

Decorative Color Options

Available in Grey, Red, and Green color options to provide both functional and aesthetic solutions.

Smooth Surface Finish

After the surface reaches suitable hardness, high-speed power troweling creates a dense and smooth final finish.

Additional Curing Protection

For improved dust resistance and prevention of shrinkage cracks, KYK MegaFloor Cure Z201 is recommended after application.

Application Instructions

Surface Preparation

  • The substrate concrete must be sound, dense, and properly leveled.
  • The structural concrete should have a minimum strength class of C25.
  • Dust, dirt, and construction residues must be removed before concrete placement.

Dry Shake Application and Finishing

  1. Fresh concrete should be leveled and prepared until it reaches a consistency where a hand mark of approximately 3–5 mm can be formed.
  2. Approximately 2/3 of the material is evenly distributed over the surface.
  3. Allow the material to absorb moisture from the concrete.
  4. Work the material into the surface using a mechanical power trowel.
  5. Apply the remaining 1/3 of the material and repeat the finishing process.
  6. Once the surface reaches walking hardness, complete the final finishing with high-speed troweling.
  7. Apply KYK MegaFloor Cure Z201 for curing protection.

Application Temperature: +5°C to +35°C

Application Recommendations

  • Avoid application during extremely hot, windy, or rainy weather conditions.
  • Protect the treated surface from rain for at least 24 hours.
  • Ensure proper curing to achieve maximum surface performance.

Performance Properties

PropertyValueStandard
Impact Resistance≥4 NmEN ISO 6272-1
Taber Abrasion ResistanceEN ISO 5470-1
Reaction to Fire ClassificationA1EN 13501-1
Ready for Foot TrafficMinimum 24 hours

Technical Specifications

PropertyValue
Chemical StructureCement-based, quartz-containing surface hardener
Maximum Particle Size≤2500 μm
Available ColorsGrey, Red, Green
Standard / ApprovalTS EN 1504-2
CertificationTS EN 1504-2 compliant, CE Certified

Public Works Position Numbers

  • Grey: 10.300.2094
  • Red: 10.300.2095
  • Green: 10.300.2096

Packaging, Storage and Shelf Life

PropertyInformation
Packaging25 kg kraft bag (54 bags/pallet = 1,350 kg)
Shelf Life24 months
Storage ConditionsStore in a dry and cool environment between +5°C and +25°C
ProtectionKeep away from direct sunlight and close packaging tightly after use

Consumption

ApplicationConsumption
Surface HardenerApproximately 4.0–6.0 kg/m²

Consumption values may vary depending on surface conditions and environmental factors.

Frequently Asked Questions (FAQ)

On which surfaces can KYK MegaFloor BYS Z121 be applied?

It is designed for fresh concrete surfaces and is suitable for interior and exterior horizontal floor applications.

How is the correct application time determined?

The product should be applied when the leveled fresh concrete can leave a hand mark of approximately 3–5 mm.

Why does the product contain quartz?

Quartz improves the abrasion and impact resistance of concrete while reducing dust formation.

Are different color options available?

Yes. KYK MegaFloor BYS Z121 is available in Grey, Red, and Green options.

When can the surface be walked on?

The surface can generally be opened to foot traffic after a minimum of 24 hours.

Is curing required after application?

Yes. Applying KYK MegaFloor Cure Z201 after finishing is recommended to reduce dusting and minimize shrinkage cracking.

Conclusion

KYK MegaFloor BYS Z121 provides a reliable solution for fresh concrete floors requiring high abrasion resistance, dust-free performance, and an attractive appearance. Thanks to its quartz-based formulation and colored surface options, it delivers long-lasting performance in demanding environments such as warehouses, factories, shopping malls, and commercial facilities.

KYK MegaFloor BYS Z121 — Durable, Decorative and High-Performance Concrete Surface Hardener.