Image:Silicone foam sakno1.jpg
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Silicone_foam_sakno1.jpg (177KB, MIME type: image/jpeg
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[edit] Summary
Faulty Sakno Silicone Foam Firestop Installation in Calgary Sewage Treatment Plant in the 1980's, to seal opening above a fire door in a cast concrete fire separation. This was a winter installation with outdoor temperatures near -40°C. Now and then, the exterior door was left open, which affected ambient indoor temperatures and thus the "snapping" process of the foam, whose density varied widely within the seal. Silicone foam, once mixed, evolves hydrogen gas, which bubbles, thus creating a foam, as the liquids turn to solid rubber.
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- (del) (cur) 02:12, 9 July 2006 . . Ahering@cogeco.ca (Talk | contribs) . . 581×396 (181,102 bytes) (Faulty Sakno Silicone Foam Firestop Installation in Calgary Sewage Treatment Plant in the 1980's, to seal opening above a fire door in a cast concrete fire separation. This was a winter installation with outdoor temperatures near -40°C. Now and then, the)
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