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Not well. Was flat the next day. I think it's probably more to my taping qualities, though it did seem to hold well at the time. To be honest, it was only the sealant that was making it anywhere near airtight. Without that, there was too much seepage around the rim. I think my taping was a bit shite in places, which might have resulted in a bad fit on parts of the rim. I need to have a post-mortem, but I was quite gutted next day to find it flat. Hopefully I don't have to resort to a tube.
so hows this holding up