Extra heavy PunctureSafe is very high quality and manufactured using the same principles of chemistry applied in our unique High-Speed Grade with the exception of the chemistry required to give a speed rating of 150 mph in order to achieve very competitive trade prices.
Similarly to our other grades, PunctureSafe is highly concentrated which means you get a more effective and permanent seal than with other sealants. This grade is a very high-solids polymer gel. Consisting of a special blend of heavy fiber, and soft rubber that dries without any shrinkage to a flexible rubbery plug in the puncture. For this reason, once the puncture has been sealed, it does not fail at a later date, unlike other products with a high water content that are designed to seal for a very short period of time until a repair can be carried out at the end of the working day.