FIELD: machine building.
SUBSTANCE: primer-corrosion converter of ferrous metals comprising orthophosphoric acid and zinc oxide is mixed with basic gallate of bismuth upon presence of ecologically safe complex based on ethylenediamine disuccinic acid.
EFFECT: use of suggested composition of the converter the anticorrosion resistance of the ferrous metals is significantly increased, also production effectiveness and corrosion protection of the ferrous metal products are improved.
2 tbl
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