Ready to use water-based roofing and waterproofing polymer-bitumen mastic

Ready to use roofing and waterproofing bitumen mastic TECHNONICOL No.31 presents a mix of an aqueous emulsion of bitumen, special polymers, additives and mineral fillers. It has an enhanced elasticity, heat endurance and water-resistant properties. The mastic has a neutral smell, so it is perfectly suited for indoor works.

Mastic TECHNONICOL No.31 is used for:

  • indoor waterproofing (bathrooms, pools, balconies, etc.);
  • installation of mastic roofs and repair of old roofs;
  • waterproofing of underground structures (foundations, basements, piles, etc.).

The mastic is applied to a surface layer by layer by roller or brush. A layer can be also installed by pouring and leveling. The thickness of one layer should not exceed 1.5 mm. Every following layer is applied after the previous one becomes dry. Application of at least 2 mastic layers is recommended for reliable waterproofing of underground structures, 3 layers are recommended for installation of mastic roofs.

The product should be stored in a dry place protected from direct sunlight at a temperature above +5°C. Shelf life – 6 months. 

Product technical data

Adhesion strength with concrete, MPa ≥0.45
Nominal strength, MPa ≥0.5
Elongation at break, % ≥700
Content of bitumen binder with emulsifier, % 50-70
Heat resistance, °C ≥95
Flexibility on R=5.0±0.2 mm beam at -15°C no cracks
Water absorption over the course of 24 h, % ≤1.0
Watertightness during 24 h at a pressure of 0.1 MPa pass
Consumption for installation of 1 layer, kg/m² 1.2-1.9
Bucket volume, kg 3, 10, 20