Snowboard delamination repair?

the nose and tail of my old snowboard are totaly delaminated, the p-tex is in the air. i tried whit normal epoxy resins but i did nothing. i am very attached to this board, and i use to give it to friends who like to try to snowboard 4 the first time. Any ideas about what to do. i think that the problem come out because of high temperature during waxing