Silent-Seal® NA conforms to or exceeds ASTM E162 at a flame spread index of less than 25. Silent-Seal® NA has also been deemed MSHA suitable as an underground mine ventilation sealant, suitability number MSHA-S10/00, minimum applied thickness 1 inch. Colored bright yellow for increased visibility.
1.75 lb/ft3 (28 kg/m3)
|Tack-Free Time||10–25 seconds|
|Fully Cured Time||1 hour|
|Cell Structure||>90% CLOSED cell content|
ASTM E162 (NA & MVS ONLY)Flame Spread: <25
*Yields are based on theoretical calculations, for comparison purposes, and will vary depending on ambient conditions and particular application. Other two-component foam product yields are shown on the specific Technical Data Sheet. These examples are representative of other products of similar size.