Good Quality PVC Single-ply Roof Membrane for Flat

No.

Test Item

Indicators

P

1

The thickness of resin layer above the reinforcement fabric   mm≥

0.40

2

Stretching Performance

Maximum Tension  N/cm ≥

250

Max. Tension Elongation       %≥

15

3

Heating Treatment Size Change Rate%≤

0.5

4

Low-temperature Bending

-25°C  No Craze

5

Water Impermeability

0.3Mpa,Water Impermeability

6

Impact Resistance

0.5kg·m

Water Impermeability

7

Anti-static Load ^a

20kg

Water Impermeability

8

Seam Peel Strength  N/mm ≥

3.0

9

Trapezoid Tear Strength   N≥

250

10

water absorption(70°C168h)%

After Soaking ≤

4.0

After Airing≥

-0.40

11

Heat aging(80°C)

Time

672h

Appearance

No blisters, cracks, delamination, bonding and holes

Tensile Strength (max. tensile)Retention%≥

85

Elongation Retention %≥

80

Cold Bending

No Craze

12

Chemical Resistance

Appearance

No blisters, cracks, delamination, bonding and holes