The surface coating process for acrylic solid surfaces involves multiple key steps, aiming to ensure that the coating has good adhesion, durability and aesthetics. The following is a detailed technological process:
First, preparations before construction
Base material treatment
Cleaning: The solid surface of acrylic must be thoroughly cleaned to remove oil stains, dust, impurities, etc., to ensure a good bond between the coating and the substrate.
Grinding: Moderately grind the surface to increase roughness and enhance the adhesion of the coating.
Drying: Ensure that the surface of the substrate is dry, and the moisture content should meet the requirements for coating construction.
Material preparation:
Choose the appropriate acrylic paint or the matching primer and topcoat.
According to the construction requirements, prepare thinners, curing agents (if necessary), mixing tools, coating tools, etc.
Second, primer application
Primer selection:
Select the appropriate acrylic primer based on the nature of the substrate and the requirements of the coating. The main function of the primer is to enhance the adhesion between the coating and the substrate and improve the durability of the coating.
Primer application
Dilute the primer in the prescribed proportion (if necessary) and stir evenly.
Use tools such as rollers, brushes or spray guns to evenly apply the primer on the solid acrylic surface.
Ensure that the primer is applied evenly without any missed areas or sagging.
After the primer dries, carry out sanding treatment (if necessary) to remove surface particles, burrs, etc.
Third, intermediate coating application (if necessary)
Function of the intermediate coating:
The intermediate coating can enhance the wear resistance, impact resistance and flatness of the surface layer.
Intermediate coating construction
Dilute the intermediate coating material in the prescribed proportion (if necessary) and stir evenly.
Use tools such as scrapers and rollers to evenly apply the intermediate coating on the primer layer.
According to requirements, multiple coats of intermediate coating can be applied to achieve the desired thickness and flatness.
After each intermediate coating is dried, grinding treatment (if necessary) is carried out to remove surface particles, burrs, etc.
Fourth, topcoat application
Topcoat selection:
Select the appropriate acrylic topcoat based on the usage environment and aesthetic requirements. The main function of topcoat is to provide an attractive appearance and protect the coating.
Topcoat application
Dilute the topcoat in the prescribed proportion (if necessary) and stir evenly.
Use tools such as rollers, brushes or spray guns to evenly apply the topcoat on the intermediate coat (or primer layer).
Ensure that the topcoat is evenly applied without any missed areas, sagging or orange peel.
According to requirements, multiple coats of topcoat can be applied to achieve the desired appearance effect and coating thickness.
Fifth, drying and curing
Natural drying
Let the coating dry naturally at room temperature. The drying time depends on factors such as the thickness of the coating, environmental temperature and humidity.
Heating curing (if required) :
For some coatings that require rapid curing, the method of heating curing can be adopted. The heating temperature and time should be determined according to the requirements of the coating and the characteristics of the curing agent.
Sixth, Inspection and acceptance
Appearance inspection
Check whether the surface of the coating is smooth and flat, free of defects such as bubbles, cracks and sagging.
Check whether the color of the coating is uniform and consistent, and meets the design requirements.
Performance inspection:
According to the usage requirements, the adhesion, hardness, wear resistance, weather resistance and other properties of the coating are inspected.
Acceptance:
After passing the inspection, the project will be accepted and the relevant data and materials will be recorded.
Seventh, Precautions
Construction environment
The construction environment should be kept clean and dry to avoid contamination of the coating by dust, oil stains, etc.
The construction temperature and humidity should meet the requirements of the coating. Construction should be avoided in high-temperature, high-humidity or low-temperature, dry environments.
Personal protection:
Construction workers should wear personal protective equipment such as work clothes, gloves and protective glasses to avoid contact with the paint that may irritate the skin and eyes.
Safe construction
Warning signs should be set up at the construction site to prevent unauthorized personnel from entering.
During the construction process, attention should be paid to safety measures such as fire prevention and explosion prevention.
