In the case of tire patches, they're usually rated to last up to 7 or 10 years. However, remember that you shouldn't patch a tire more than just one. Otherwise, it heightens the risk of a blowout occurring. Tire plugs are similarly long-lasting, with the ability to remain in good shape for 7 to 10 years, as well. Once again, it's not recommended to plug a tire more than once. Undertaking too many repairs at once will compromise the structural integrity of the tire. In so doing, it may cause deflation or worse, the tires blowing out while you're driving.