Abstract: Disclosed herein is a method of repairing surface damage in an exterior surface of a hollow bladder, made of a cured elastomer. The method comprises placing first strips, made of an uncured elastomer, at least partially within the surface damage in the exterior surface of the hollow bladder in a side-by-side arrangement. The method also comprises sealing the surface damage, the first strips, and a portion of the exterior surface surrounding the surface damage in a vacuum bag. The method further comprises reducing pressure within the vacuum bag relative to outside the vacuum bag. The method additionally comprises while the pressure within the vacuum bag is reduced, heating the first strips from within the vacuum bag to cure the first strips.

Abstract: The repair of a reinforced elastomer article having a hollow therein relates to utilizing an amine curable polymer or prepolymer and a cured elastomer patch. The hollow in the elastomer, which can extend either partially or completely through the article, is filled with a gum rubber which is thereafter cured by conventional means, such as with spotters. The area beneath the now filled hollow is coated with a treating agent, followed by the amine curable polymer or prepolymer and a cured patch. The polymer is then cured at room temperature. One area of use is in the repair of tires.

Abstract: A tire patch is removably affixed to the front surface of a backing sheet in an area defined by a broken line extending intermediate and parallel to the top and bottom edges of the sheet and the bottom edge thereof. A sheet of abrasive material is removably affixed to the tire patch. A sealed container of liquid cement for affixing a tire patch to a tire is affixed to the front surface of the sheet in the area defined by the broken line and the top edge of the sheet and has a narrow neck just crossing the broken line whereby when the backing sheet is cut along the broken line the neck is opened and the cement is available for use.