Picked the wrong silicone on a storefront in Denver and it was a mess

Had to choose between a standard neutral cure and a faster acid cure for a 40-foot storefront job last Tuesday, and I went with the acid cure thinking it would save time. Big mistake - the smell was brutal in the enclosed vestibule and it started corroding the aluminum mullions where I didn't wipe fast enough. Any of you guys ever had a sealant choice backfire on you like that?

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2 Comments

dylanward5mo ago

Acid cure on aluminum in an enclosed space sounds like a recipe for trouble. You're lucky it only corroded the mullions where you wiped slow, could have been worse.

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miller.jason5mo ago

The fumes alone probably did some damage even where you didn't touch it. Acid off-gassing in a sealed space is basically a chemical bath for everything nearby.

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