Is this a good product to use on granite?

one contract would like put granite in my kitchen,but the granite it will be unfinished and he give me a BOTTLE of a product call HIGH GLOSS FINISHING SEALER (DuPont Stone-tech professional),and he talk me to put my self with a cloth,my question is : It will be look bright the granite after i put that or it will be better to use another sealer for the granite? thanks