TireCare is designed to coat the crown of the tire. (Please see diagram below)
Due to the shape of the tire casing and the corresponding centrifugal force generated by the rotation of a tire, the TireCare sealant is "forced" to cover the inner crown area of the tire. TireCare is not designed to protect the outside 1" to 1.5" of a tire's thread closest to the shoulder areas.
Should you detect a tire injury outside of the crown of a tire, we strongly recommend that you approach a professional workshop for inspection.