Physical properties parameter of Rubber Waterstop Belt

no

Items

index

B

S

J

1

Rigidity, HA

60±5

60±5

60±5

2

Tensile strength ,MPa                            ≥

15

12

10

3

Snap and elongation,%                ≥

380

380

300

4

transmutation

70ºC×24h,%        ≤

35

35

35

23ºC×168h,%          ≤

20

20

20

5

Tear strength 21 ,KN/m                                ≥

30

25

25

6

Brittleness temperature,ºC                                  ≤

-45

-40

-40

7

Air aging 31

70ºC×168h

Rigidity, HA      ≤

8

8

--

Tensile strength,MPa          ≥

12

10

Snap and elongation,%          ≥

300

300

100ºC×168h

Rigidity, HA      ≤

--

--

8

Tensile strength,MPa          ≥

9

Snap and elongation,%          ≥

250

8

Ozone ageing 50pphm: 20%,  48h

2grade

2 grade

0 grade

9

Rubber and metal bonding

In vivo sections flexibility

 remark:

 1 rubber and metal bonded items apply only to the edge of waterstop which include steel.

 2 demand and supply can discuss about the question if there is other special needs, such as mold assessment test, but the anti-mildew properties should be equal or higher than two grade.