Ⅰ

Ⅱ

1

soluble content(g/㎡)        ≥

2.0mm

1300

3.0mm

2100

4.0mm

2900

2

tensile properties

tensile force(N/50mm)≥

2.0mm

350

—

3.0mm

450

600

4.0mm

450

800

the maximum peak tensile%≥

30

40

3

heat resistance

70℃no flow, dripping

4

low temperature flexibility/℃

-20

-30

no flaw

5

waterproofness

0.2MPa，120min

6

peeling strength/(Nmm)

with waterproof sheet

1.0

With aluminium sheet

1.5

7

screw rod water tightness

pass

8

permeability oil /sheet  ≤

2

9

persistent adhesivity/min ≥

15

10

thermal ageing

the maximum peak tensile% ≥

30

40

low temperature flexibility/℃

-18

-28

no flaw

peeling strength(N/mm) ≥

1.5

dimensional stability%

1.5

1.0

11

peeling strength again(N/mm) ≥

1.5