KYK Megaİzo S801 – Ultra Elastic Bitumen-Polyurethane Waterproofing Material

20/07/2026

KYK Megaİzo S801 – Ultra Elastic Bitumen-Polyurethane Waterproofing Material

KYK Megaİzo S801 – Ultra Elastic Bitumen-Polyurethane Waterproofing Material

What is KYK Megaİzo S801?

Waterproofing plays a critical role in the durability and service life of a building. Especially groundwater, hydrostatic pressure, chemical exposure and structural movements can cause deformation in conventional waterproofing layers over time.

KYK Megaİzo S801 is a single-component, ready-to-use waterproofing material developed to withstand these challenging conditions. Based on bitumen-polyurethane technology, it forms a seamless and highly elastic membrane layer after application, preventing water penetration and providing long-term protection.

Application Areas

Thanks to its versatile structure, KYK Megaİzo S801 is safely preferred in both residential and industrial projects.

✅ Underground Applications

  • Foundation and sub-foundation waterproofing
  • Concrete curtain walls
  • Retaining walls
  • Elevator shafts
  • Basement and parking garage walls

It creates a strong barrier against pressure caused by groundwater.

✅ Green Roof Systems

  • Maintains membrane integrity thanks to its root resistance
  • Prevents plant roots from damaging the waterproofing layer

✅ Wet Areas

  • Under-tile waterproofing applications in bathrooms, kitchens and balconies
  • Prevents water leakage beneath finishing coatings

With these features, it provides high performance in comprehensive waterproofing projects.

Application Surfaces

KYK Megaİzo S801 provides effective results on the following surfaces:

  • Concrete
  • Cement-based plaster
  • Existing bituminous surfaces (with suitable primer)

Proper surface preparation is critical for achieving strong adhesion and maximum waterproofing performance.

Why KYK Megaİzo S801?

  • Reduces the risk of cracking thanks to its high elasticity
  • Provides long-lasting performance
  • Minimizes maintenance requirements
  • Easy application with its single-component structure
  • Complies with technical standards (TS EN 15814 / TS EN 1504-2)

KYK Megaİzo S801 offers a safe and sustainable solution for professional waterproofing applications.

Frequently Asked Questions

Can it be applied under ceramic tiles?

Yes. It can be used as an under-coating waterproofing layer in wet areas.

Can it be left exposed?

For underground applications, it must be covered with a protective layer.

What is the advantage of being a single-component product?

It does not require mixing, saving time and reducing application errors.

How does it perform at low temperatures?

It maintains its elasticity down to –30°C. However, the application temperature should not be below +5°C.

Conclusion

KYK Megaİzo S801 is an advanced waterproofing solution that provides superior protection in critical areas requiring resistance against water, gas, chemical effects and plant roots.

With its high elasticity, durability and wide range of applications, it offers a reliable and long-lasting waterproofing alternative for modern construction projects.