Q11, you know , that’s a darn good question...

Don’t think anyone’s ever asked that before ...
If you think about it , polyurethane is just Plastic ... so anything that sticks to plastic would work .... Lots of plastic framed windows/etc. now that need caulk or glue ... You might ask at the HD what is recommended for such products ... and in the best Foamie’ manner ,
test it yourself on a scrap first ...
As with any type of adhesive, the surface must be CLEAN and Dry !!! You need to give the coating time to not only dry , but “cure” , which I believe is the “outgassing” of the product ... so if it still “smells" it’s not cured yet ... ( FYI, common Latex house paint can take up to 2 weeks to cure ..

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For Clean, when in doubt , just wipe it down with a solvent like alcohol , or a "de-greaser” ( I use 91% rubbing alcohol from the drugstore .. it’s Cheap and effective)
WOI, that looks like some good stuff ?
