Thickness (mm)

Width (m)

Length (m)

1.5, 1.8, .2.0

1.0, 1.1, 1.2

20

Project

index

first-class.

qualified

Tensile strength/Mpa

20℃±2℃   ≥

1.4

1.2

elongation at break/%

20℃±2℃   ≥

300

250

tear strength/(kN/m)              ≥

15

Watertightness (30min)

0.2 MPa   impermeable

Cold bending temperature/℃          ≥

20

Heating expansion amount/mm

Extend  ≤

2

Shrink    ≤

4

air heat ageing

(80℃×168h)

Tensile strength retention rate%、

150% (forming Self-vulcanization, improve strength)

elongation at break retention rate /%

100%