The invention concerns solvent-free, low-emission hardenable coating means containing saturated and/or non-saturated polyester as a bonding agent which has dihydrodicyclopentadiene units of formula (I) as the structural unit and/or oligodihydrodicyclopentadiene units of formula (II) where n = 1 to 10, process for the preparation of coatings using the coating means according to the invention as well as the use of the coating means for the coating of metal containers, especially tins.
