Ready to use solvent-based reflective polymer-bitumen mastic used for installation and recovery of protective layer on roofs

Ready to use reflective bitumen mastic TECHNONICOL No.57 presents a mix of high-quality bitumen, special polymers, aluminum pigment, additives and organic solvents. Coating layer formed by the mastic effectively protects the bitumen roofing against UV rays and heat; it also protects the metal roof from corrosion.

Mastic TECHNONICOL No.57 is used for:

  • installation of the protective layer on new mastic roofs; 
  • recovery of the protective layer on old roofs;
  • corrosion protection of roof coverings.

Before application, the mastic has to be carefully mixed for homogeneous distribution of aluminum pigment. The mastic is applied to a surface by brush, roller or airless spraying device. Application of 2 mastic layers is recommended for reliable protection.

The product should be stored in a dry place protected from direct sunlight at temperatures from -20°C to +30°C. Shelf life – 18 months.

Product technical data

Adhesion strength with concrete, MPa ≥0.3
Adhesion strength with metal, MPa ≥0.3
Adhesion strength between bitumen material – bitumen material, MPa ≥0.2
Nominal strength, MPa ≥0.2
Elongation at break, % ≥200
Mass fraction of non-volatile substances, % ≥50
Heat resistance, °C ≥100
Flexibility on R=5.0+0.2 mm beam at -15°C no cracks
Water absorption over the course of 24 h, % ≤2.0
Consumption for installation of 1 layer, kg/m² 0.4-0.6
Bucket volume, kg 3, 10, 20