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A process for coating a metallic surface by contacting the metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition contains water and at least one compound a) selected from a silane, a silanol, a siloxane and a polysilo

A process for coating a metallic surface by contacting the metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition contains water and at least one compound a) selected from a silane, a silanol, a siloxane and a polysiloxane. The first coating is the rinsed with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense before the rinsing step. The silane, silanol, siloxane or polysiloxane is capable of condensation.

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1. A process comprising the steps of contacting a metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition consists of: water; andat least one compound a) selected from the group consisting of a silane, a silanol, a silo

1. A process comprising the steps of contacting a metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition consists of: water; andat least one compound a) selected from the group consisting of a silane, a silanol, a siloxane and a polysiloxane, wherein the at least one compound is capable of condensation;and rinsing the first coating with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense before the rinsing step. 2. The process of claim 1, further comprising applying a second coating on the first coating. 3. The process according to claim 2, comprising rinsing the first coating with a fluid before applying the second coating. 4. The process according to claim 3, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 5. The process according to claim 2, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 6. The process according to claim 1, wherein the pH of the first coating composition is greater than 1.5 and less than 9. 7. The process according to claim 1, wherein compound a) is present in an amount of from 0.005 to 80 g/l, calculated on the basis of a corresponding silanol. 8. The process according to claim 1, wherein compound a) contains at least one member selected from the group consisting of an amino group, an urea group and an ureido group. 9. The process of claim 1, wherein the aqueous surfactant-containing fluid contains demineralized water. 10. A process comprising the steps of contacting a metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition consists of: water;at least one compound a) selected from the group consisting of a silane, a silanol, siloxane and a polysiloxane, wherein the at least one compound is capable of condensation; andat least one compound b) selected from the group consisting of titanium, hafnium, zirconium, aluminum and boron;and rinsing the first coating with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense hefbre the rinsing step. 11. The process of claim 10, further comprising applying a second coating on the first coating. 12. The process according to claim 11, comprising rinsing the first coating with a fluid before applying the second coating. 13. The process according to claim 12, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 14. The process according to claim 11, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 15. The process according to claim 10, wherein the pH of the first coating composition is greater than 1.5 and less than 9. 16. The process according to claim 10, wherein compound a) is present in an amount of from 0.005 to 80 g/l, calculated on the basis of a corresponding silanol. 17. The process according to claim 10, wherein compound a) contains at least one member selected from the group consisting of an amino group, an urea group and an ureido group. 18. The process of claim 10, wherein the aqueous surfactant-containing fluid contains demineralized water. 19. A process comprising the steps of contacting a metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition consists of: water;at least one compound a) selected from the group consisting of a silane, a silanol, a. siloxane and a polysiloxane, wherein the at least one compound is capable of condensation; andat least one cation c) selected from a cation of a metal of subgroup 1 to 3 and 5 to 8, including a lanthanide, and of main group 2 of the periodic table of the elements;and rinsing the first coating with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense hefbre the rinsing step. 20. The process of claim l9, further comprising applying a second coating on the first coating. 21. The process according to claim 20, comprising rinsing the first coating with a fluid before applying the second coating. 22. The process according to claim 21, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 23. The process according to claim 20, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 24. The process according to claim 19, wherein the pH of the first coating composition is greater than 1.5 and less than 9. 25. The process according to claim 19, wherein compound a) is present in an amount of from 0.005 to 80 g/l, calculated on the basis of a corresponding silanol. 26. The process according to claim 19, wherein compound a) contains at least one member selected from the group consisting of an amino group, an urea group and an ureido group. 27. The process of claim 19, wherein the at least one compound c) is selected from the group consisting of cerium, chromium, iron, calcium, cobalt, copper, magnesium, manganese, molybdenum, nickel, niobium, tantalum, yttrium and zinc. 28. The process of claim 19, wherein the aqueous surfactant-containing fluid contains demineralized water. 29. A. process comprising the steps of contacting a metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition consists of: water;at least one compound a) selected from the group consisting of a silane, a silanol, a siloxane and a polysiloxane, wherein the at least one compound is capable of condensation;at least one compound b) selected from the group consisting of titanium, hafnium, zirconium, aluminum and boron; andat least one cation c) selected from a cation of a metal of subgroup 1 to 3 and 5 to 8, including a lanthanide, and of main group 2 of the periodic table of the elements;and rinsing the first coating with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense before the rinsing step. 30. The process of claim 29, further comprising applying a second coating on the first coating. 31. The process according to claim 30, comprising rinsing the first coating with a fluid before applying the second coating. 32. The process according to claim 31, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 33. The process according to claim 30, wherein the second coating is a conversion coating, a coating resulting from the application of an after-rinsing solution, a coating based on a lacquer, a primer or an adhesive. 34. The process according to claim 29, wherein the pH of the first coating composition is greater than 1.5 and less than 9. 35. The process according to claim 29, wherein compound a) is present in an amount of from 0.005 to 80 gil, calculated on the basis of a corresponding silanol. 36. The process according to claim 29, wherein compound a) contains at least one member selected from the group consisting of an amino group, an urea group and an ureido group. 37. The process of claim 29, wherein the at least one compound c) is selected from the group consisting of cerium, chromium, iron, calcium, cobalt, copper, magnesium, manganese, molybdenum, nickel, niobium, tantalum, yttrium and zinc. 38. The process of claim 29, wherein the aqueous surfactant-containing fluid contains demineralized water.