The dilution of the aluminum plate is determined by the formula

by:Zeyi     2021-12-26
The dilution selection of aluminum plate is mainly determined by the paint material determined by the formula. Non-floating aluminum silver paste can be widely used in polar and non-polar solvents, such as aliphatic or aromatic hydrocarbons, lipids (such as butyl acetate), ketones (Such as methyl ethyl ketone, methyl isobutyl ketone), alcohols (such as ethanol). Aluminum plate chlorinated solvents (halogenated...) are not suitable for any aluminum silver paste pigments. Chlorinated solvents will release HCL and chemically react with the fine aluminum pigments. The best effect is achieved when the surface of the coating is oriented in parallel Poor parallel orientation will cause turbidity or diffuse reflection. The orientation of the flake pigment is related to the formulation and construction conditions. The volatilization of the solvent causes the shrinkage of the wet coating film, and finally presses the aluminum pigment into a horizontal orientation. The higher the solvent content in the paint This effect is stronger. This explains the phenomenon of flake pigment orientation. Therefore, the optical properties of low-solid coatings are better than those of high-solids coatings. Many commonly used aluminum plate coating base materials such as oily varnish base materials, acrylic esters, alkyd, cyclic itch esters and water-based base materials, can be applied to non-floating aluminum silver paste pigments. In general, any coating base material or The solvent is suitable as long as it is compatible with the solvent carrier of the aluminum-silver paste and does not cause chemical damage to the aluminum-silver paste. Special attention: Aluminum is a kind of active metal, and the acid value of paint should be controlled below 7. When a coating system containing aluminum plates needs to add a metal drier, for non-floating aluminum silver pastes, only driers that will not react with the fatty acids on the surface of the aluminum flakes can be used. It is recommended to use diamond and zirconium , Manganese drier.————The article comes from the Internet. If there is any infringement, please contact to delete it.
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