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Physical and Mechanical Properties of "Blueskin® WP 200"

Property

Unit

Requirement

Result

Thickness tolerance

%

± 10 of the manufacturer’s specified value

–2.5

Hardness (type 00 hardness gage)

no unit

report value

76

Water vapour permeance, procedure B

ng/(Pa·s·m2)

report value

0.7

Tensile strength at maximum load

MPa

report value

3.6

Elastic recovery

%

report value

44

Watertightness Performance of "Blueskin® WP 200"

PropertyFootnote (1)

Unit

Requirement

Result

Watertightness

no unit

no leakage

passed

Water immersion/watertightness

no unit

no leakage

passed

Heat aging/watertightness

no unit

no leakage

passed

Chemical aging/watertightness

no unit

no leakage

passed

UV aging/watertightness

no unit

no leakage

passed

Low temperature flexibility/watertightness

no unit

no leakage

passed

Table 4.1.3 Crack Bridging Resistance of "Blueskin® WP 200"

PropertyFootnote (1)

Unit

Requirement

Result

Crack bridging

30 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

30 cycles at 30°C

Water immersion/crack bridging

30 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

30 cycles at 30°C

Heat aging/crack bridging

10 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

10 cycles at 30°C

Chemical aging (NaOH)/crack bridging

10 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

10 cycles at 30°C

Chemical aging (acetic acid)/crack bridging

10 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

10 cycles at 30°C

UV aging/crack bridging

10 cycles at –20°C

no unit

no cracking, breakage, tearing, adhesion failure or other observable failures

passed

10 cycles at 30°C

Table 4.1.4 Adhesion Performance and Tensile Strength of "Blueskin® WP 200"

PropertyFootnote (1)

Unit

Requirement

Result

Water immersion/adhesion

N/m

> 175

1 427 N/m

Heat aging/adhesion

N/m

> 175

1 118 N/m

Heat aging/tensile strength

%

> 90% of original value

Footnote (2)

Chemical aging (NaOH)/tensile strength

%

> 90% of original value

passed

Chemical aging (acetic acid)/tensile strength

%

> 90% of original value

passed

UV aging/tensile strength

%

> 90% of original value

Footnote (2)

Table 4.1.5 Elastic Recovery of "Blueskin® WP 200"

PropertyFootnote (1)

Unit

Requirement

Result

Heat aging/elastic recovery

%

> 90% of original value

passed

Chemical aging (NaOH)/elastic recovery

%

> 90% of original value

passed

Chemical aging (acetic acid)/elastic recovery

%

> 90% of original value

passed

UV aging/elastic recovery

%

> 90% of original value

passed

Table 4.1.6 Performance Properties of a "Blueskin® WP 200" Lap Joint

PropertyFootnote (1)

Unit

Requirement

Result

Water immersion/watertightness

no unit

no leakage

passed

Heat aging/watertightness

no unit

no leakage

passed

Water immersion/adhesion

N/m

> 175

1 449 N/m

Heat aging/adhesion

N/m

> 175

582 N/m

Lap joint shear test

no unit

no slippage or bounding failure

passed

Heat aging/lap joint shear test

no unit

no slippage or bounding failure

passed