Not a good idea to specify the space saver and not do a dummy run to see what is involved in using it, without actually taking it fully out and fitting it.
Nothing worse than trying to use the goo and finding it won't work, or if it does work, just, and then the tyre fitter won't touch the wheel because of it even if the tyre is in good condition.
I carry three cans of tyre sealant/inflater, reasoning at least one will work, but only for use in a real emergency and if the tyre has a simple puncture.
Nothing beats a spare wheel as long as you have room for the punctured one after removal.
Nothing worse than trying to use the goo and finding it won't work, or if it does work, just, and then the tyre fitter won't touch the wheel because of it even if the tyre is in good condition.
I carry three cans of tyre sealant/inflater, reasoning at least one will work, but only for use in a real emergency and if the tyre has a simple puncture.
Nothing beats a spare wheel as long as you have room for the punctured one after removal.