GOOP
High performance puncture repair.
Kingfisher Goop puncture preventative is water based, non toxic, will not harm the wheel rim or tyre, it will not freeze and is not affected by high temperatures, it is installed before a puncture has occurred and remains installed for the life of the tyre.
It will seal as many punctures as the tyre may experience, and will last the life of the tyre or tube. When the tyre eventually needs to be replaced Goop will simply wash away leaving no residue behind.