WONDERSEAL HEAVY DUTY TIRE SEALANT is a waterbased TYRE COOLANT & PRESSURE STABILIZER designed to be a POROSITY SEALERfor the rim, tyre, bead and all other minorĀ areas where loss of air may occur! Many satisfied customers testifies that Wonderseal does in fact seal most penetrations, up to a 1/4 of an inchin the tyre tread area the moment they occur.Granting the vehicle operator the opportunityto continue with travelling to a more convenient and save place to do thenecessary permanent repair in his own time.