I've seen sikaflex mentioned in several posts - must be a product trade name that I'm not familiar with.

Does anybody know the US term for it?

Sorry I'm not totally bilingual,

Sikaflex = polyurethane sealant

Comes in one of those tubes that you put in a gun and squeeze the handle.

Better than silicone, as it's stronger, stickier, and doesn't give off corrosive fumes (acetic acid) as it dries.

Downside is that it's a bit more expensive.

David

UK & USA - 2 nations divided by a common language!

in the US, there is a product range called GOOP which is a similar thing.

Bought my Sikaflex from a DIY store in San Francisco for about $ 5.00 a tube. I thought it was an american product??

I've also used

Tiger Seal
Granville PU flex

..which seemed to do the job just as well. Bit like bathroom sealant except it's sticky.

Chris