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Antirust paint composition generally use for oil and water two kinds

2014.12.11   10:16

Currently used for oily and aqueous roughly two kinds. Oily antirust paint makes material surface fat removal difficult, is rarely used. Waterborne antirust easy to use, low price, but because of containing toxic substances such as nitrite, chromate, harm to operators is larger, countries have restrictions on the use of performance of the single, and this kind of product can't meet the requirements of magnetic alloy material of rust.

Water-based metal antirust paint choose strong chelating agent six inositol phosphate ester as main components, and with several other water-based additives. Six inositol phosphate is extracted from food crops and natural non-toxic organic chemical products, when it used as magnetic material corrosion inhibitor, can rapidly on the surface and metal chelate, single complex molecules to form a layer of dense protective film, can effectively inhibit the corrosion of metals. After the treatment of material surface keep primary colors, don't need to water can enter the coating process.

Antirust pigment is an important component of the antirust paint. Physical antirust pigment is a kind of waterborne anticorrosive paint itself relatively stable chemical properties of pigment, which is by itself physical properties, stable chemical performance, quality of a material is solid, subtle grain, good filling ability, improve the density of paint film, lower coating permeability, which have the effect of rust. Iron oxide red is belong to this kind of material, and anti-rust property of metal aluminum powder is due to the aluminum powder with scaly structure, forming film closely, have strong ability of reflection of ultraviolet light, can improve the ability of film aging. Chemical antirust paint, such as lead red, zinc chrome yellow, lead acid calcium, zinc powder, lead powder, etc., all belong to this type of antirust paint.

1, red lead: also called red lead, is a kind of use has a long history of antirust paint, the antirust paint it with linseed oil makes up, its good rust resistance, it demands for steel rust on the surface of the handle is not high, in the presence of residual oxide coating on the surface, still have very good antirust effect. But the drawback is toxic, easy cause poisoning, because of lead than major, easy to precipitate, cannot be used in light metal rust, easy happening due to electrochemical corrosion. Red lead to timely after antirust paint besmear, the paint or primer is used white and pink.

2, zinc chrome yellow: belongs to the most appropriate maintenance primer of antirust paint, is also a kind of good light metal antirust paint, the atmospheric exposure effect is good.

3, lead acid calcium, lead powder, etc. Lead series pigments, due to the toxicity, but also consume large amounts of metal. From the viewpoint of development, should be gradually replaced by other antirust pigments.


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