Sika MonoTop®-109 WaterProofing AE is a high-quality, polymer-modified cementitious waterproofing mortar formulated for effective waterproofing and surface protection of concrete and masonry structures. The product requires only the addition of clean water, making it easy to mix and apply on site.

This waterproofing mortar forms a durable, water-resistant coating that protects surfaces against moisture ingress, dampness, and water penetration. It is suitable for use in wet areas, bathrooms, kitchens, basements, foundations, water tanks, terraces, balconies, and retaining walls.

✅ Key Features

✔ Single-component cementitious waterproofing mortar
✔ Easy to mix – just add water
✔ Effective protection against water penetration
✔ Strong adhesion to concrete and masonry surfaces
✔ Durable and long-lasting waterproofing performance
✔ Breathable coating allowing vapor transmission
✔ Suitable for internal and external applications
✔ Can be applied by brush, roller, or trowel
✔ Ideal for wet areas, basements, and foundations
✔ Professional-grade waterproofing solution