Shot blasting

Shot blasting of steel structures for surface preparation

Professional preparation for painting, galvanizing and anti-corrosion protection

At Jansa Metal, we carry out the shot blasting of steel structures as part of the industrial surface preparation process prior to painting or galvanizing. Through the controlled projection of abrasive material, we remove rust, mill scale and impurities from the steel, obtaining a clean and rough surface that guarantees maximum adhesion of protection systems.

📞Request industrial shot blasting and ensure maximum protection for your structure

Why is shot blasting essential?

Improved Paint Adhesion: Prevents rust formation and ensures the durability of the coating, even under extreme conditions.

Prevention of Paint Defects: Minimizes issues like flaking and peeling, optimizing the quality of the final finish.

Compliance with Industry Standards: We apply SA 2½ shot blasting, ensuring a thorough and uniform cleaning that meets the requirements of paint systems.

What is SA 2½ shot blasting and what are its benefits?

At Jansa Metal, we apply a SA 2½ blast cleaning grade according to the ISO 8501-1 standard, internationally recognized as the optimal standard for preparing metal surfaces before applying protective systems like paint or industrial coatings.

SA 2½, also known as “Near-White Blast Cleaning,” removes almost all oxides, mill scale, previous paint, and visible contaminants. It leaves the surface slightly rough and uniformly metallic, creating the perfect foundation for a strong and durable coating anchor.

Advantages of SA 2½ shot blasting:

Complies with ISO 8501-1, a requirement for industrial, energy, or public works projects.

Improves coating adhesion, extending the service life of the steel against corrosion.

Reduces the risk of paint failures such as flaking, bubbling, or peeling.

Ensures a uniform finish, allowing for a more efficient application of the paint system.

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FAQ’s

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What is shot blasting and why is it essential for the protection of steel structures?

Shot blasting is a surface preparation process for steel that uses abrasive particles. This procedure creates a controlled roughness, or anchor profile, which improves the adhesion of primer and paint. It is essential for ensuring optimal protection of steel structures and preventing paint adhesion problems.

What common painting problems are avoided with shot blasting?

Shot blasting helps prevent common problems such as paint flaking and surface rusting. By properly cleaning and preparing the surface, the durability and effectiveness of the applied coating are enhanced.

What is SA2 ½ shot blasting and what advantages does it offer?

SA 2½ is a specific grade of steel surface preparation, widely used in the industry. This grade ensures a surface free of rust, mill scale, and contaminants, providing optimal preparation for the application of advanced paint systems and significantly improving the coating’s adhesion and durability.

How does shot blasting improve the adhesion of the paint system?

Shot blasting improves the adhesion of the paint system by removing rust and impurities from the steel surface, creating a rough texture that facilitates paint adhesion. This ensures a uniform and durable paint coat, increasing protection against corrosion.

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