| abstract |
A primer and top coat will be applied to the metal tape. The coating compositions used in this process can be obtained by mixing hydroxyl- and carboxyl-functional polyester, k-triazine resin or blocked polyisocyanate, organic solvents, catalyst and pigments, fillers and customary auxiliaries and additives. It is essential that the primer to achieve the structuring of the surface 0.01 to 0.05 wt .-% of a polyethylene wax with a softening point between 100 and 120 ° C, preferably 100 to 110 ° C, with a grain size distribution of 5 to 35 microns , preferably 5 to 25 microns, optionally in combination with 0.01 to 5 wt .-% of a tall oil alkyd resin additive and optionally in combination with a leveling agent.n n n The dry film thickness of the primer is up to 25 µm, that of the top coat 10 to 23 µm, preferably 14 to 20 µm. The coating compositions harden at an object temperature of 200 to 260 ° C within 25 to 70 s. |