KYK Megaİzo S201 | Fast Setting, UV Resistant High Elastic Waterproofing

20/07/2026

KYK Megaİzo S201 | Fast Setting, UV Resistant High Elastic Waterproofing

KYK Megaİzo S201 | Fast Setting, UV Resistant High Elastic Waterproofing

Product Description

KYK Megaİzo S201 is a professional two-component waterproofing system consisting of an elastomeric polymer-based liquid component and a mineral-filled powder component. Thanks to its UV-resistant structure, fast setting capability and high elasticity, it can be applied both as an under-tile waterproofing layer and as an exposed topcoat.

With its short curing time and strong adhesion performance, it provides long-lasting protection for terrace roofs, structures exposed to intensive water contact and industrial applications.

Application Areas

Megaİzo S201 can be safely used in the following areas:

  • Terrace roofs and balconies (as an under-coating system or exposed topcoat)
  • Parking garage decks
  • Swimming pools
  • Building foundations and curtain concrete structures
  • Wastewater treatment facilities
  • Horizontal and vertical surfaces in indoor and outdoor environments

Product Advantages

  • UV resistant; unaffected by sunlight exposure
  • Crack bridging capability up to 3 mm at 2 mm dry film thickness
  • Fast setting performance
  • Rain resistance after 2 hours
  • Suitable for pedestrian traffic after 4 hours
  • Breathable structure thanks to water vapor permeability
  • Creates a seamless and continuous waterproofing layer
  • Solvent-free formulation
  • High adhesion strength and easy application

Surface Preparation

  • The surface must be clean, dry, sound and free from dust.
  • Voids deeper than 1 cm should be repaired with MegaTamir T101/T102; structural damages should be repaired with T103/T104.
  • Corner joints should be rounded with fillets; Megaİzo Tape S901 should be used in weak areas.
  • Gaps around drains should be filled with MegaTamir Grout T105/T107.
  • Megaİzo PU Mastic HM S492 should be used for expansion joints.
  • MegaFilm A502 primer should be applied on metal surfaces, while İzo Epo A501 primer should be used on damp surfaces.
  • Ceramic, glass and bituminous surfaces should be roughened before application.
  • On aerated concrete surfaces, the product can be applied as a single coat to create a primer effect.

Application Method

  • 15 kg powder component and 15.5 kg liquid component should be mixed completely.
  • A low-speed mixer (approximately 400 rpm) should be used.
  • After obtaining a homogeneous mixture, allow it to rest for 3–4 minutes and then remix for 1–2 minutes before application.
  • Apply at least two coats, with each coat applied perpendicular to the previous one.
  • The waiting time between coats is approximately 4 hours.

Application Limits

StageTime
Pot lifeMaximum 30 minutes
Waiting time between coatsMinimum 2 hours
Ready for useMinimum 24 hours

Application temperature:
Between +5°C and +35°C.

Technical Specifications

PropertyValue
Chemical StructureElastomeric polymer-based, mineral-filled
Density1.20 ± 0.05 kg/dm³
ColorPowder: Grey · Liquid: White

Packaging and Storage

Set contents:

  • 15 kg powder (kraft bag)
  • 15.5 kg liquid (plastic bucket)

Shelf Life:
12 months

Storage Conditions:
Store between +5°C and +25°C, below 60% relative humidity, and protected from direct sunlight.

Keep packaging tightly closed when not in use.

Conclusion

KYK Megaİzo S201 provides a reliable and long-lasting waterproofing solution for terrace, balcony, swimming pool, foundation and curtain concrete applications thanks to its fast curing capability, high elasticity and UV resistance.

Compared to traditional cement-based waterproofing systems, it offers faster setting, bridges cracks up to 3 mm and provides complete water impermeability.

Frequently Asked Questions (FAQ)

1) Where can KYK Megaİzo S201 be used?

It can be used on terraces, balconies, parking areas, swimming pools, building foundations, curtain concrete structures and wastewater treatment facilities.

2) Can it be applied as a final exposed coat?

Yes. Thanks to its UV resistance, it can be left exposed without additional covering.

3) How long does it take to become rain resistant?

It becomes resistant to rain approximately after 2 hours and can be opened to pedestrian traffic after 4 hours.

4) What is its crack bridging capacity?

It can bridge cracks up to 3 mm at a dry film thickness of 2 mm.

5) Is it resistant to negative water pressure?

No. It should only be applied against positive water pressure.

6) Which primers are recommended?

Depending on the surface condition, MegaFilm A901, MegaFilm BB A204, İzo Epo A501 or MegaFilm A502 primers can be used.

7) When can covering be applied?

The minimum waiting time between coats is 2 hours, and the system can be put into service after a minimum of 24 hours.

8) Is it environmentally friendly?

Yes. It is solvent-free and does not contain environmentally harmful components.