KYK Megaİzo Lastik 7 S102 | Two-Component, Semi-Flexible Waterproofing Material

20/07/2026

KYK Megaİzo Lastik 7 S102 | Two-Component, Semi-Flexible Waterproofing Material

KYK Megaİzo Lastik 7 S102 | Two-Component, Semi-Flexible Waterproofing Material

Seamless, Reliable, and Semi-Flexible Waterproofing Solution for Wet Areas and Terrace Applications

KYK Megaİzo Lastik 7 S102 is a semi-flexible waterproofing material consisting of a cement-based powder component and a polymer emulsion-based liquid component. It is applied before coating applications and creates a continuous waterproofing layer on both interior and exterior surfaces, including horizontal and vertical areas.

With its high adhesion strength, solvent-free formulation, and environmentally friendly structure, it provides a safe and durable waterproofing solution.

Application Areas

  • Wet areas: Bathrooms, kitchens, balconies
  • Terraces: Waterproofing before ceramic and coating applications
  • Application surfaces: Interior/exterior areas, horizontal and vertical surfaces

Product Advantages

Semi-Flexible Structure

Provides crack-bridging performance under standard conditions.

Seamless Waterproofing Layer

Creates a continuous and integrated waterproofing barrier without joints.

High Bonding Strength

Offers strong adhesion performance for long-lasting applications.

Easy Local Repair

Allows practical and fast repair when required.

Solvent-Free and Environmentally Friendly Formula

Provides a safer application solution with reduced environmental impact.

Easy Preparation and Application

Its practical mixing and application process saves time during installation.

Note:
It is not suitable for applications exposed to negative water pressure.

Application Instructions

Mixing

Slowly add 20 kg powder component into 6.35 kg liquid component.

Mix with a low-speed mixer (approximately 400 rpm) until a homogeneous, lump-free consistency is achieved.

After allowing the mixture to rest for 3–4 minutes, remix for 1–2 minutes before application.

Number of Coats and Thickness

  • Minimum two coats must be applied.
  • Each coat should be applied perpendicular to the previous coat direction.
  • Total dry film thickness should be approximately 2 mm.
  • The second coat should be applied after the first coat has completely dried.

Mesh Reinforcement (When Required)

Megaİzo File S902 can be used between coats.

The reinforcement mesh should be placed while the first coat is still fresh. After curing, the second coat can be applied.

Covering Application

For floor applications, ceramic adhesives complying with TS EN 12004 C2 and S1/S2 classifications should be preferred.

Equipment

  • Applied using a waterproofing brush.
  • Tools should be cleaned with water before the material dries.

Application Times and Conditions

StageDuration
Pot lifeMaximum 3 hours
Waiting time between coatsMinimum 6 hours
Covering applicationMinimum 3 days
Opening to useMinimum 7 days

Temperature Range

Application surface and ambient temperature:
+5°C to +35°C

During and after application, the surface must be protected from water contact until the specified curing periods are completed.

Application Recommendations

  • On horizontal surfaces, create a slope towards drainage points.
  • Do not apply under strong wind or direct sunlight.
  • Avoid application during rainy weather and protect the surface from rain for at least 24 hours.
  • Do not apply on weak or unstable substrates.

Technical Specifications

PropertyValue
Chemical StructureCement + polymer emulsion
Density1.80 ± 0.01 g/cm³
Application Thickness2–3 mm
ColorPowder: Grey / Liquid: White

Consumption

Recommended consumption for 2 mm dry film thickness:
3.2–4.0 kg/m²

Actual consumption may vary depending on surface absorption, roughness, and environmental conditions.

Packaging and Storage

Package Contents:

  • 20 kg powder component (kraft bag)
  • 6.35 kg liquid component (plastic container)

Shelf Life:
12 months (in unopened packaging, stored between +5°C and +25°C in a dry and cool environment)

Keep away from direct sunlight and close packaging tightly after use.

Conclusion

KYK Megaİzo Lastik 7 S102 provides a semi-flexible, seamless, and reliable waterproofing solution before coating applications in wet areas such as bathrooms, kitchens, balconies, and terraces.

With its crack-bridging capability, high adhesion strength, and CE-certified performance, it creates a durable and standards-compliant waterproofing system for professional construction projects.

Frequently Asked Questions (FAQ)

1) Where can KYK Megaİzo Lastik 7 S102 be used?

It is suitable for waterproofing applications before coating in bathrooms, kitchens, balconies, and terraces, on both interior and exterior horizontal and vertical surfaces.

2) How many coats should be applied and what is the target thickness?

At least two coats should be applied perpendicular to each other, achieving a total dry film thickness of approximately 2 mm.

3) When can the surface be covered?

Ceramic or coating applications can be started after a minimum of 3 days. The system should be opened to use after at least 7 days.

4) Which adhesives should be preferred for ceramic applications?

Ceramic adhesives complying with TS EN 12004 C2 and S1/S2 classifications are recommended.

5) Can it be used against negative water pressure?

No. It is not suitable for applications exposed to negative water pressure.