Torontoist » polysulfide http://torontoist.com Torontoist is about Toronto and everything that happens in it Sun, 27 May 2012 03:02:31 +0000 http://backend.userland.com/rss092 en Vintage Toronto Ads: Is That Landmark Sealed with Polysulfide?

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 [...]

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