Asphalt tar paper roll cut bitumen felt manufacturers

SBS Waterproof Membarne       Reinforced base

PY 

G

Type

I

II

I

II

Content of soluble substances(g/m2)≥

2mm

1300

3mm

2100

4mm

2900

Water impermeability

Pressure (Map)

0.3

0.2

0.3

Retention time (min)

Impermeability within 30 min

Heat resistance °C

90

105     

90

105

Tensile strengthN/50mm≥

Longitudinal

450

800

350

500

Transverse

250

500

Elongation at break %≥

Longitudinal

30%

40%

-------

-------

Transverse

Tear strength  N≥

Longitudinal

250

350

250

350

Transverse

170

200

Low temperature flexibility°C

-18

-25

-18

-25