Banner
What are the precautions for the use of water-based metallic paints for vehicles?
- 2019-03-13-

With the increasingly stringent environmental regulations, water-based paint is also an inevitable choice for car coating. We know that car paint is more extensive: water-based anti-corrosive paint, water- based anti-corrosive paint, water-based glass paint , water-based plastic paint, water-based decorative paint, etc.!

Car water metallic paint application precautions

Waterborne metallic paints have been used in the automotive industry for several years, but most domestic waterborne paint manufacturers have allowed downstream companies to replace their original coating equipment and processes to use their own water-based paints, and even some water paint manufacturers have invested in assisting car companies to replace them. Equipment, in fact, is increasing costs and wasting resources. It is understood that there are only a few very qualified water paint manufacturers in China that can use the existing paint equipment and processes to directly apply water paint, for example, occupation. Benchmarking of unlimited water paint, since 1998 began to concentrate on the development of water-based paint!

Car water metallic paint application precautions

In the automotive water-based metallic paints, attention should be paid to the operation characteristics of equipment such as paint adjustment system, active spraying system, coating flash drying system and spray room ambient temperature and humidity control system, and also should pay attention to the electrophoretic coating during the implementation of the free intermediate coating process. Appearance roughness and solvent-based clear varnish (one-component or two-component) film thickness and appearance fullness.

Car water metallic paint application precautions

Now, the focus of waterborne metal paint development is to expand the temperature and humidity scale of its construction environment as much as possible; to promote the localization of key raw materials and further reduce the data cost of waterborne metal paints.

Car water metallic paint application precautions

Powertrain components such as engines, transmissions, and axles, as well as locomotive chassis parts represented by leaf springs, drive shafts, and dampers. These locomotive parts are characterized by their speciality (large heat capacity, including rubber and plastic parts). Or grease), mostly use low temperature (about 80 ° C) drying type coating. Also in accordance with the requirements of environmental protection, more and more locomotive parts coating lines that originally used solvent-based anti-corrosion coatings are gradually being replaced with water-based anti-corrosive paints.

Car water metallic paint application precautions

The water-based anti-corrosive paint has high requirements on the cleanliness of the workpiece. A little rust is no problem, but it is necessary to have no oil, so the pre-treatment requirements are severe. The construction environment of waterborne anticorrosive paint does not have particularly severe temperature and humidity requirements, but the humidity is too large, which may cause problems such as sag, dryness and blistering. It can generally be solved by strengthening ventilation and setting low temperature gradient baking. In order to complete the "thick coating" of water-based anti-corrosion paint on the parts of the locomotive, before the water-based paint is sprayed and the technical exchange of the paint manufacturer, whether it is diluted with water or not, it is recommended to use the high-pressure airless spray method.

Car water metallic paint application precautions

With the government's increasing emphasis on the clean production of automobiles, and vigorously promoting the development and application of automotive water, glass, plastic and other water-based paints, there is an urgent need for coating companies, coating equipment companies, research institutes and automobile companies to collaborate and unite. To tackle the problem, we are striving to introduce a series of water-based locomotive coating products with high cost performance and excellent coating applicability, and complete industrialized intelligent application.

°° ́性金属æ1⁄4†