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Results of Testing Si-COAT® 422AB™ coating to CAN/ULC S741

Test

Requirement

Result

Five 1 m2 specimens were tested and measured for air permeance, before-and-after accelerated aging,  at a minimum of six air pressure differentials (ΔP) between 0 and 250 Pa.

Air leakage rate at 75 Pa ΔP (based on linear regression of 30 data points) ≤ 0.02 L/(s·m2)

0.002 L/(s·m2)

Combined WVP of Si-COAT® 422AB™ coating over DensGlass® Footnote (1) Panel Assemblies

Property

Unit

Requirement

Si-COAT® 422AB™ Result

WVP (applied over 12.7 mm DensGlass® at 25 ± 5 mils DFT thickness)

ng/(Pa·s·m2)

> 60

187