the application of adhesive RA65C instead of adhesive RA65 in carcass ply compound of truck and bus radial tire was studied.The results showed that，compared with the compound adhesive RA65，Fmax－FLof the compound with dhesive RA65C decreased，stress at given elongation and tensile strength increased，hardness and elongation at break changed little，and heat aging resistance were similar，the initial adhesion force increased，the rolling resistance increased slighty，the compound demonstrated excellent cut resistance property.
