PRODUCTION PROCESS AND PRODUCTION LINE OF A SELF-SEALING TYRE

Production process of a self-sealing tyre (1 ) for vehicle wheels, the process comprising: - producing a sealing compound (10) comprising at least one first elastomeric component, at least one bonding resin, and a cross-linking agent; - building a green tyre; - moulding and vulcanising the green tyre for obtaining the self-sealing tyre (1) comprising a layer of sealing compound (10), wherein producing the sealing compound (10) comprises: - feeding to, and mixing in, a first mixing device (110) the first elastomeric component and the bonding resin for producing a precursor compound (30) of the sealing compound; - introducing the precursor compound (30) free of the cross-linking agent into a cask (90); - subsequently, extracting the precursor compound (30) from the cask (90); - continuously feeding the precursor compound (30) extracted from the cask (90) and the cross-linking agent to a second continuous mixing device (116) with a respective controlled feeding rate, wherein the second mixing device (116) mixes the precursor compound (30) and the cross-linking agent for obtaining the sealing compound (10).