Punturesafe

Hope this helps.

www.puncturesafe.com

ps not used product but seems interesting.

 thanks for the reply your link  works 

I have used a similar product several years ago  when there were many popular franchise vans around at caravan shows and national rallies.

When time came to change tyres a few years later I warned tyre fitters who were somewhat displeased with the news, as it happened the product had completely dried up. 

I would also check compatibility with any fitted TPMS sensors

After reading manufactures Q/A it lasts the life of the Tyre and is compatible with modern TPMS