Painting steel structures not only helps increase aesthetics but also plays an important role in protecting steel structures from the effects of the environment and time. Applying the correct steel structure painting process will help increase the life and durability of the project.
What is Steel Structure Paint?
Structural steel paint is a specialized paint designed to protect and enhance the durability of steel structures such as columns, beams, and frames in construction works. These works often include bridges, roads, high-rise buildings, factories, and industrial areas.
There are many different types of KCT paint such as heat-resistant paint, fire-resistant paint, waterproof paint, epoxy coating to help prevent rust, abrasion and environmental impacts. With the increasing demand for construction, KCT paint has become an important factor in improving the quality and durability of construction works, contributing greatly to the development of the construction industry.
Why Is Steel Structure Painting Important?
Steel structures are often affected by external factors such as humidity, temperature, and chemicals. If not properly protected, steel can corrode, reducing its load-bearing capacity and affecting the safety of the structure.
KCT paint not only creates a protective layer on the surface but also helps:
- Prevents corrosion and rust.
- Increased heat resistance and resistance to harsh environmental impacts.
- Increase the aesthetics of the project with a variety of colors, suitable for the overall design.
What Types of Steel Structure Paint Are There?
KCT paint has three main types: Alkyd paint, Epoxy paint and Polyurethane (PU) paint, each with its own characteristics and applications.
Alkyd paint
Alkyd paint is a popular oil-based paint for steel structures. The main ingredient of this paint is Alkyd anti-rust resin, derived from plants, which helps the paint adhere well to the surface and dry quickly. Alkyd paint is also known for its anti-rust ability and good color retention even in corrosive environments.
Epoxy Paint
Epoxy paint is a high-end paint, made up of two components: solvent and polyamide hardener. This type of paint is suitable for both new and old steel structures. However, because the adhesion of Epoxy paint is worse than Alkyd paint, it is necessary to clean and roughen the surface thoroughly to avoid peeling.
Polyurethane Paint
PU paint is a durable protective paint, often used for machinery, steel structures inside and outside the house, tanks, underground pipes, air duct systems, bridges, ships and other industrial works. The advantages of this type of paint include: quick drying, hard surface, good impact and abrasion resistance, anti-corrosion, effective adhesion, resistance to UV, solvents and chemicals.
Standard Steel Structure Painting Process
Step 1: Choose the Right Construction Method
The method of painting should be chosen based on the type of paint used and the specific requirements of the project. Common methods include:
- Spray paint: Used for large surfaces that require a smooth and even paint layer.
- Paint brush: Suitable for small, hard to reach areas.
- Roller paint: Apply to flat surface, saving time and effort.
Choosing the right construction method helps ensure quality and save costs.
Step 2: Prepare and Treat the Surface of the Steel Structure
Surface treatment is an extremely important step in the KCT painting process, determining the adhesion of the paint layer. The main stages include:
- Surface Cleaning: Removes dirt, grease and rust.
- Cleaning method: Use sandblasting, steel shot blasting or solvent to achieve a clean and smooth surface.
A clean and properly prepared surface will help the primer and topcoat achieve maximum effectiveness.
Step 3: Apply Primer
The primer acts as the first layer of protection, helping to:
- Increased adhesion: Base for topcoat.
- Anticorrosion: Prevent steel from direct contact with air and moisture.
Choosing the right primer for the environment is important to ensure a standard process.
Step 4: Applying the Topcoat
The coating not only protects but also brings aesthetics to the project. During construction, it is necessary to note:
- Thickness guarantee: Apply paint evenly, achieving thickness according to technical requirements.
- Avoid dripping: Control the amount of paint to ensure a smooth surface with no technical defects.
High quality paint coating will protect KCT from all environmental impacts.
Step 5: Check, Fix Errors and Hand Over the Project
After completing construction, it is necessary to thoroughly check the surface to detect errors such as:
- Peeling.
- Cracked, leaking paint.
Any errors must be resolved before acceptance. The process is only considered complete when it meets KCT paint acceptance standards.
Notes when applying protective paint to steel structures
When applying protective paint to KCT, contractors need to follow some important notes to ensure the quality and durability of the project.
- Carefully inspect the KCT surface, ensuring that all rust, dirt, and grease have been completely removed. Clean and treat the surface to make it smooth, rough, and even.
- The choice of paint must be based on the specific requirements of the project and environmental conditions. The selected paint must be durable, abrasion resistant, weather resistant and not easily contaminated with dirt.
- During the mixing process, the contractor must follow the correct ratio and technical procedures to ensure uniform color and quality of the paint layer.
- Construction must be carried out with appropriate technology and equipment so that the paint layer has an even thickness, does not flow, clump or is uneven.
- Once completed, surrounding areas should be cleaned and protected from impact to allow the paint to dry completely and achieve optimum quality.
The standard KCT painting process helps protect the project sustainably and increase the aesthetics after completion. Please follow the correct steps and notes that Hai Long Construction has shared above to achieve optimal results for all construction projects.
Hopefully the above information has helped you better understand the process of painting KCT for industrial buildings. The full application of these criteria will ensure aesthetics, safety and efficiency in KCT design. With more than 25 years of experience in the field of KCT production and installation, choosing Hai Long Construction will help you design and construct industrial factories with KCT to ensure safety and efficiency.
