I think that carrying a tyre sealant and inflator might be
useful in some instances, such as if someone was part of a group engaging in an
off-road trek, but for every day around town use it might be better to
subscribe to a breakdown service as mentioned in the discussion that @PippaScope
posted the link to above, as it would cover you for all types of breakdown.
The disadvantages I
can see for the tyre sealant/inflator kit is:
bulky to carry around,
needs someone willing/able to use it,
need to ensure the kit is compatible with the scooter
However, if I was using a scooter somewhere with a high risk
of puncture, lots of broken glass on the footpath for example, I might be
tempted to use a pre-puncture sealant to increase the likelihood of getting
home safely and being able to sort things out from there.
Here is a link to an article discussing the differences
between sealant/inflator kits, pre-puncture sealants and post-puncture
Obviously, it is aimed at cars rather than scooters but I
think the advice still applies to scooter and inflatable wheelchair tyres.
Hope this helps
Jean Merrilees BSc MRCOT
You can read more of my posts at: https://community.scope.org.uk/categories/ask-an-occupational-therapist