| 摘要 |
FIELD: coatings for alloys of aluminum, iron and magnesium. SUBSTANCE: coating reacting with base includes ions of zirconium, fluorine and calcium. Coating pH is from approximately 2.6 to approximately 3.1. Coating may include phosphates, polyphosphates, tannin, boron, zinc and aluminum. Coating may also include isolating agent for binding of dissolved iron and agent of crystalline deformation. EFFECT: higher efficiency. 27 cl, 1 tbls
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