Non woven felt fabric rolls

material

pp

pp

Weigth  g/m2

500~600

700~1000

thickness mm

2.0

2.2

air permeability L/m2.s

100~200

100~200

N/ 5*20cm breaking strength

warp

>1000

>1200

weft

>1500

>1800

breaking elongation(%)

warp

<25

<35

weft

<55

<55

Continuous working temperature (°C)

≤90

≤90

Continuous working temperature (°C)

100

100

acid resistance

excellent

excellent

alkali resistance

excellent

excellent

abrasion resistance

excellent

excellent

hydrolytic stability

excellent

excellent

finishs treatment

singeing, calendering

singeing, calendering