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Spraying type fluorocarbon metallic paint and application thereof in aluminium alloy sections of buildings

A fluorocarbon metal paint, mixed technology, applied to the surface coating device, coating, etc., can solve the problems of paint loss, chalking, loss of aluminum protection function, etc., to achieve good weather resistance and construction convenient effect

Active Publication Date: 2011-04-13
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two kinds of coatings have their own disadvantages: the weather resistance of powder coatings is limited, and the profile or plate coated with powder coatings will lose gloss, chalk or crack after being used for more than 10 years, which affects the appearance of the house and also affects the appearance of the house. Lost the protective function of aluminum; anionic electrodeposition coatings are now only varnishes that can be applied to aluminum, and the paint will also lose gloss and chalk after being used for more than 10 years
However, the existing polyvinylidene fluoride-based coatings for aluminum can only be applied by roller coating, which limits the use of aluminum profiles and aluminum sheets.

Method used

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  • Spraying type fluorocarbon metallic paint and application thereof in aluminium alloy sections of buildings

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Embodiment 8

[0024] Embodiment 8: The above embodiment is applied to spray coating on architectural aluminum alloy profiles: the following steps are included:

[0025] (1) Substrate surface treatment. Pre-degreasing→water washing→degreasing→water washing→squeezing water→chromizing→water washing→moisture drying→dust removal;

[0026] (2) Spray primer 10-15μm, after spraying, place it at 30°C-80°C for 2-5 minutes until the surface is dry;

[0027] (3) Spray metallic paint 20-25μm, after spraying, place it at 30°C-80°C for 10-15 minutes to dry.

[0028] (5) Baking: Baking at 240°C-250°C for 10-20 minutes, the total film thickness is ≥30μm,

[0029] Its film performance test result is as shown in table 2:

[0030] Table 2

[0031] Test items

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Abstract

The invention discloses a spraying type fluorocarbon metallic paint and application thereof in aluminium alloy sections of buildings. The spraying type fluorocarbon metallic paint comprises the following components by weight percentage: 20 to 60 percent of polyvinylidene fluoride, 10 to 30 percent of thermosetting acrylic resin, 10 to 20 percent of amino resin, 5 to 10 percent of aluminum silver starch, 5 to 20 percent of filler and 10 to 60 percent of two or more than two types mixed solvent. The metallic paint has convenient construction and good weathering resistance, can greatly prolong the outdoor service life of aluminium section sprayed with paint and has good appearance.

Description

technical field [0001] The invention relates to a spray-coated fluorocarbon metal paint and its application on building aluminum alloy profiles. Background technique [0002] As a material widely used in construction, aluminum alloy profiles and plates have been widely used in China. In some high-rise buildings, the maintenance of the house is very difficult, so it is hoped that the building materials used can be used for as long as possible. At present, the coatings used on aluminum alloy profiles and plates are mostly powder coatings and anion electrodeposition coatings. These two kinds of coatings have their own disadvantages: the weather resistance of powder coatings is limited, and the profile or plate coated with powder coatings will lose gloss, chalk or crack after being used for more than 10 years, which affects the appearance of the house and also affects the appearance of the house. The protective function of aluminum is lost; now only varnish can be applied to al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/16B05D1/38
Inventor 刘军段琼陈明军佘维佳廖有为刘寿兵曹智
Owner 湘江涂料科技有限公司