Vintage Toronto Ads: Is That Landmark Sealed with Polysulfide?
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Vintage Toronto Ads: Is That Landmark Sealed with Polysulfide?

20090804polysulfide.jpg
Source: Canadian Architect, January 1985

These three local towers were…
While searching for information regarding Morton Thiokol and polysulfides that didn’t involve deep scientific analysis of the chemical composition of the sealant used in these Toronto landmarks, we ran into an interesting tidbit from the current manufacturer: the sealant should have a “twenty-year service life under normal conditions.”
Makes you want to watch your head while passing by any of these structures, doesn’t it?

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