Basf Coatings Ag

Klaus Holzapfel

Hubert Baumgart

Peter Mayenfels

Heinrich Wonnemann

Bernd Biallas

Theodora Dirking

Stefan Sickert

Peter Machaczek

Process for producing a multilayer coating, in which a first coating (A) has applied to it a subsequent coating material (B) which is then cured involves selecting and/or modifying the first coating (A) and/or selecting the coating material (B) in such a way that the quotient (Q) formed from the surface energy of the second coating (B) and the surface energy of the first coating (A) is less than or equal to 1, and its use.

Process for producing multi-layer coating wherein the quotient of the surface energies of a second coating layer divided by a first coating layer is less-than-or-equal-to 1

The invention relates to a substrate provided with a multilayer coating. The invention additionally relates to a process for its preparation, in which the body to be coated passes via the entry into the pretreatment stage This is followed by electrodeposition coating and the baking of the electrodeposition coat. In stage preparation takes place for coating with powder coating material (stage ). In stage drying is carried out with IR irradiation. This is followed by the cooling stage The powder coating material is applied to the powder coat in stage Following passage through the intermediate drying stage a protective coat is applied in stage and then is baked in stage The body is transported out of the unit via the exit

Substrate having a multilayer coat and method for its production

Laboratory drier for the simulation of industrial lacquer drying installations, containing an irradiation space with IR emitters and a convection space adjacent to this and having ventilated and heated drying gases.

Laboratory drier and method

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Ascheberg, Germany

Klaus Holzapfel