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Since it is highly toxic, it also destroys organic growth on the surface. Zinc chromate is also used in spray paints, artists' paints, pigments in varnishes, and in making linoleum. [5] When used as a pigment, it is known as Zinc Yellow, [2] Buttercup Yellow or Yellow 36. [10] It is rarely used in art because the pigment degenerates into a ...
The chromate coating acts as paint does, protecting the zinc from white corrosion, thus making the part considerably more durable, depending on the chromate layer's thickness. [8] [9] [10] The protective effect of chromate coatings on zinc is indicated by color, progressing from clear/blue to yellow, gold, olive drab and black.
Zinc white has a cooler hue than lead white, which tends to have a yellowish cast. [1]: 172 Zinc white generally needs to be mixed with greater quantities of oil than lead white in order to create a spreadable oil paint, which reduces its hiding power; on their own, lead and zinc white refract light more or less equally.
In contrast to paints where the risk of sub-surface corrosion creep exists, this phenomenon is avoided through the sacrificial effect of the zinc. In salt spray test s zinc flake coatings demonstrate better protection against corrosion than a typical galvanic zinc coating, which in the tests (generally run in accordance with ISO 9227) often ...
Zinc oxide is used as a white pigment in paints. Roughly one quarter of all zinc output in the United States in 2009 was consumed in zinc compounds; [122] a variety of which are used industrially. Zinc oxide is widely used as a white pigment in paints and as a catalyst in the manufacture of rubber to disperse
Galvanization (also spelled galvanisation) [1] is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are coated by submerging them in a bath of hot, molten zinc. [citation needed]