ULTRAFLEX grey mineral

SBS-modified bitumen roofing and waterproofing cap sheet membrane

SBS-modified bitumen membrane ULTRAFLEX grey mineral is designed for installation as the top layer in double-layer roofing system on buildings and constructions. Can be used for new construction or repair.

The material withstands temperature fluctuations and high mechanical loads providing a long-term, reliable and effective waterproofing. SBS polymer provides additional flexibility and dynamic resistance.

On the bottom side, the material is covered by a polymer film with special graphic elements, melting of which indicates the proper material heating. On the top side, the material is covered by a coarse-grained slate with special hydrophobic treatment that protects the material from damage by ultraviolet radiation during the whole service life of the membrane.  

Product technical data

PROPERTIES ULTRAFLEX A
3 mm grey mineral
ULTRAFLEX A
4 mm grey mineral
Thickness, mm
Thickness, mm 3.0±0.20 4.0±0.20
Mass per unit area, kg/m2
Mass per unit area, kg/m2 3.8±0.38 5.1±0.48
Length x width, m
Length x width, m 10 x 1 10 x 1
Softening point, °C
Softening point, °C ≥110 ≥110
Flexibility at low temperature, °C
Flexibility at low temperature, °C ≤-10 ≤-10
Flow resistance at elevated temperature, °C
Flow resistance at elevated temperature, °C ≥100 ≥100
Elongation L / T, %
Elongation L / T, % 45±9 / 50±10 45±9 / 50±10
Tensile strength L / T, N/50 mm
Tensile strength L / T, N/50 mm 850±170 / 650±130 850±170 / 650±130
Tear resistance L / T, N
Tear resistance L / T, N 350±100 / 350±100 350±100 / 350±100
Reinforcement type
Reinforcement type polyester polyester
Protective covering type on the top
Protective covering type on the top coarse-grained slate coarse-grained slate
Protective covering type on the bottom
Protective covering type on the bottom polymer film polymer film