Coating material for protecting metals, especially steel, from corrosion and/or scaling, method for coating metals and metal element
A technology of oxide skin and non-metallic fillers, which is applied in anti-corrosion coatings, metal material coating technology, conductive coatings, etc.
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Embodiment 1
[0055] 10 g of graphite powder (particle size <10 μm) are added to 100 g of a 60% silicone polyester solution (eg in xylene, available under the trade name Silikoftal) and dispersed thoroughly using a dissolver. Mix 70 g of ethanol, 10 g of carnauba wax dispersion (solids content 20 wt % in test gasoline), 50 g of aluminum pigment paste (eg Decomet Hochglanz, Al 1002 / 10 from Schlenk) and 20 g of zinc paste (eg Zinkflake GTT, available from Eckart) was added to the mixture and it was stirred homogeneously with a paddle stirrer under low shear for several hours.
[0056] After appropriate dilution with butyl glycol, the finished paint is applied to an alkaline degreased steel substrate using a gravity cup (Flieβbecher)-paint gun (e.g. Sata Jet, 1.2mm nozzle), or on a suitable substrate The doctor blade is applied under geometry (flat metal plate or slab) such that a wet film thickness of approximately 10-40 μm is obtained. The coating was hardened for about 10 minutes at a surf...
Embodiment 2
[0058] 30 g of graphite powder (particle size <10 μm) were added to 100 g of a 60% silicone polyester solution (eg in xylene, available under the trade name Silikoftal) and dispersed thoroughly using a dissolver. 70 g of xylene, 10 g of carnauba wax dispersion (20 wt % solids in test gasoline) and 30 g of aluminum pigment paste (e.g. Decomet Hochglanz, Al 1002 / 10 from Schlenk) were added to the mixture and mixed with A paddle mixer stirs it in evenly at low shear for hours.
[0059] After appropriate dilution with butyl glycol, the finished paint is applied to a grease-free galvanized steel substrate using a gravity cup-paint spray gun (e.g. Sata Jet, 1.2mm nozzle), or on a suitable substrate geometry ( flat metal plate or slab) using a doctor blade such that a wet film thickness of approximately 10-40 μm is obtained. The coating was hardened for about 10 minutes at a surface temperature of 220°C. The paint can also be applied to the galvanized steel sheet by roll coating (e...
Embodiment 3
[0061] 50 g of butyl glycol and 85 g of iron pigment paste (eg STAPA TA Ferricon 200 from Eckart) were added to 100 g of a 60% solution of silicone polyester (in xylene, eg available under the trade name Silikoftal) and Stir it in evenly with low shear.
[0062] The finished paint is applied to an alkaline degreased steel substrate using a gravity cup-paint spray gun (e.g. Sata Jet, 1.4mm nozzle) or a doctor blade with suitable substrate geometry (flat metal sheet or slab) Coat such that a wet film thickness of approximately 10-40 μm is obtained. The coating was cured for 10 minutes at a surface temperature of 250°C.
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