Abstract: The invention described herein comprises a two component sealant composition and process for applying the same for repair of ruptures, holes, cracks, etc., in hoses, pipes, tires, etc. The first component is an alpha-cyanoacrylate glue which is applied as a layer covering the rupture or crack and after a very short period the second component, a powder, is applied to the surface of the alpha-cyanoacrylate. This second component comprises a polymerization initiator having hydroxyl and/or carboxylate groups therein, such as carbohydrate, i.e., saccharides, etc., hydrolyzed polyvinylacetate, etc. A particularly preferred initiator is alginate.

Abstract: In repairing a rupture or opening as described herein the rupture or opening and the adjacent area of the surface in which the rupture or opening occurs is covered by a layer of an alpha-cyanoacrylate which is liquid at 20.degree. C. and has the formula CH.sub.2 .dbd.C(CN)--COOR wherein R is a hydrocarbon radical selected from the group consisting of aliphatic, aromatic and cycloaliphatic hydrocarbon groups of 1-10 carbon atoms and alkoxy, chloro and fluoro derivatives of said hydrocarbon groups in which alkoxy groups there are 1-4 carbon atoms therein; and spreading on the said layer of alpha-cyanoacrylate a layer of a powder comprising rubber.

Abstract: In repairing a rupture as described herein the rupture is covered by a patch of metal or plastic sheet material which covers the rupture at least 1/2 inch beyond the rupture, then applying over the edge of the patch a layer of an alpha-cyanoacrylate which is liquid at 20.degree. C. and has the formula CH.sub.2 .dbd.

Abstract: The invention described herein comprises a two component sealant composition and process for applying the same for repair of ruptures, holes, cracks, etc., in hoses, pipes, tires, etc. The first component is an alpha-cyanoacrylate glue which is applied as a layer covering the rupture or crack and after a very short period the second component, a powder, is applied to the surface of the alpha-cyanoacrylate. This second component comprises a polymerization initiator having hydroxyl and/or carboxylate groups therein, such as carbohydrates, i.e., saccharides, etc., hydrolyzed polyvinylacetate, etc. A particularly preferred initiator is alginate.