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Shmeepsheep t1_j2b301f wrote

Reply to comment by AcornWoodpecker in What shower caulk to fill a wide (1/2") gap by climbtigerfrog

Plumbers putty will dry up and crack away of used to fill that gap, won't provide a water tight surface, and would take a lot to fill that. Backer rod would be the appropriate backing for silicone, not caulk

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AcornWoodpecker t1_j2cf7ms wrote

Yeah, backer rod is what I was thinking. It's basically the same thing as the weather strip tubes, different sections of the store for sure.

I guess I grew up using caulk as a general term for anything that covered a joint, be it silicon or traditional stuff. OP should choose their goop for their situation.

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