Is there a tyre sealant I can use in case of a puncture on my Volkswagen Touran?

I have just bought a Volkswagen Touran with seven seats which does not have a spare wheel. It has an air compressor and a bottle of sealant. The instructions state that after use the tyre must not be used, and must be replaced. Is there a sealant that can be used which does not lead to the tyre being replaced, but can be repaired?

Asked on 3 August 2010 by delivery man

Answered by Honest John
There are sealants but I am not going to take the responsibility of recommending any, in contradiction of the tyre manufacturers who have spent millions developing runflat tyres to do the same job.
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