Patent ID: 8545967

Claim:
A metal sheet having a front side, a back side and an edge extending therebetween, the front side and the back side comprising a first coating applied directly onto bare metal surfaces of the front side and back side, the first coating of the front side further comprising particles, said particles being selected such that upon action of an acid said particles release divalent or multivalent metal ions in such an amount that upon contacting the front side with a self-depositing coating agent, a second coating forms on the first coating of the front side, whereas the first coating of the back side optionally contains particles that release divalent or polyvalent metal ions upon action of an acid, said particles on the back side being present in a concentration that is not sufficient to cause deposition of the self-depositing coating agent on the back side, the metal sheet further comprising on the first coating of the front side, as a second coating, a deposited self-depositing coating agent, wherein the edge is not coated with the first coating but is coated with the second coating.