The World's "Ultimate" in Puncture Sealant Systems . The history of Tyre sealants. . . Tyre sealants have been around since the mid 1970's and while the concept of the technology of TYRESAFE is similar to that ot that time, there is a vast difference in the composition of  TYRESAFE vis-a-vis other sealants in that other sealant products contain a range of hazardous materials such as asbestos, organic fibres, acids and flammable liquids. . . The very labelling on these other products attests to the hazardous constituents. These products have also developed a poor reputation in the marketplace due to their unfortunate side effects which include, for example: . They solidify due to centrifugal force and torque (not temperature related) since the fibres they contain - often plastic of one kind or the other - twist and contort, then bind and ball up into solid mass which then revolves around inside the tyre. This, invariably, causes wheel imbalance. . Depending on temperature variations, many freeze, liquefy or dry out completely. . Many cause oxidation inside the tyres and rust the wheels concerned. . They fail to seal holes greater that 5 - 6 mm. . They contain versions of anti-freeze compounds which are both flammable and toxic. . They fail at random and are not permanent. . They cause environmental problems when disposed of before and after use. . Tyre manufacturers often void warranty . After products have been around and in use for some considerable time, their failings tend to become common knowledge. This is true in the automobile industry as well as in large commercial operations in general. Unfortunately, the general belief is that sealants do not work. . However, when in depth, proper and rigid research and development, allied to a quality assured manufacturing approach is undertaken, as in the case of TYRESAFE, the resultant product has proved to do the work it professes to do. .