KYK Megaİzo Lastik 3 S903 | UV Resistant Hydrophobic Impregnation Waterproofing

Product Description

KYK Megaİzo Lastik 3 S903 is a single-component, ready-to-use waterproofing material based on silane and siloxane technology. With high UV resistance, the product deeply penetrates the surface and creates a hydrophobic effect. It provides resistance against both positive and negative water pressure (≤1 bar) and delivers long-lasting waterproofing performance by penetrating into capillary cracks.

Application Areas

Megaİzo Lastik 3 S903 can be applied on all mineral-based horizontal and vertical surfaces in both indoor and outdoor environments.

Main application areas:

• Decorative pools and swimming pools
• Terrace and balcony grout joints
• Porous and absorbent building elements
• Surfaces with capillary cracks

Product Advantages

• Resistant to UV rays.
• Suitable for light pedestrian traffic.
• Provides protection against both negative and positive water pressure (≤1 bar).
• Penetrates into the surface through its hydrophobic impregnation technology and prevents capillary water leakage.
• Reduces dust formation and improves chemical and mechanical resistance.
• Ready to use; no mixing required.
• Provides a fast and practical solution for local repairs.
• Solvent-free and environmentally friendly.

Application Surfaces

Walls (Indoor / Outdoor)

• Cement-based plaster and grout surfaces
• Travertine, clay, brick, concrete, aerated concrete and pumice block surfaces

Floors (Indoor / Outdoor)

• Cement-based screeds and grout surfaces
• Travertine, clay, brick, concrete, aerated concrete and pumice block surfaces

Surface Preparation

• The surface must be dry, clean, sound and free from dust.
• Oil, dirt and substances that may prevent adhesion must be removed.
• Mortar residues, cement deposits and loose particles must be completely removed from the surface.

Application Method

Megaİzo Lastik 3 S903 is ready to use and should be applied to the surface in two coats.

The second coat can be applied without waiting after the first coat, depending on the surface conditions.

The number of coats can be increased until the surface reaches saturation.

Application equipment:

• Brush
• Roller
• Low-pressure spraying machine

Equipment cleaning:
Application tools should be cleaned with water before the product dries.

Application Recommendations

• On low-absorbent surfaces such as ceramic, porcelain and granite, the surface should be wiped with a damp cloth 10–15 minutes after application.
• The cloth or sponge should be replaced frequently during cleaning.
• Keep the container closed during application and do not add any foreign substances to the product.
• Slopes should be created on horizontal surfaces to ensure proper water drainage.
• Application should not be carried out during rainy weather, excessive wind or under direct sunlight.
• Applied surfaces must be protected from rain for at least 24 hours.
• Do not apply on surfaces where there is a risk of frost.

Technical Specifications

Packaging, Storage and Shelf Life

Packaging options:

• 5 kg plastic container
• 500 ml spray bottle (12 bottles per box – total 6 liters)

Shelf Life:
12 months (in unopened packaging, stored between +5°C and +25°C with ≤60% relative humidity)

Storage Conditions:
Store in a cool, dry place away from direct sunlight.
Close the packaging tightly after use.

Conclusion

KYK Megaİzo Lastik 3 S903 provides long-lasting protection, especially for swimming pools, terraces and balcony joints, thanks to its UV resistance, hydrophobic penetration effect and resistance against both negative and positive water pressure. Its ready-to-use formulation simplifies application while improving the chemical and mechanical resistance of surfaces, providing a durable and effective waterproofing solution.

Frequently Asked Questions (FAQ)

1) On which surfaces can KYK Megaİzo Lastik 3 S903 be used?

It can be applied on mineral and absorbent surfaces such as cement-based plasters and grouts, travertine, brick, aerated concrete and pumice blocks.

2) Is it resistant to negative and positive water pressure?

Yes. It provides protection against both positive and negative water pressure up to ≤1 bar.

3) How many coats should be applied?

Generally, two coats are recommended. The number of coats can be increased until the surface reaches saturation.

4) What is its appearance after application?

It is transparent and does not alter the natural appearance or texture of the surface.

5) What should be done on non-absorbent surfaces?

The surface should be wiped with a damp cloth 10–15 minutes after application.

6) Does it require mixing before use?

No. The product is ready to use and does not require mixing.

7) What is the drying time?

The surface dries approximately within 40–50 minutes and becomes ready for use after 24 hours.

8) Can it be used outdoors?

Yes. Thanks to its UV resistance, it can be safely applied in outdoor environments.