What is EN ISO 6836-2021?

EN ISO 6836-2021 is a technical standard that sets out the requirements for the preparation of steel substrates before application of paints and related products. This standard provides guidelines for the appropriate surface preparation methods, such as abrasive blast cleaning or power tool cleaning, to ensure effective coating adhesion and longevity.

Importance of Proper Surface Preparation

Proper surface preparation is crucial in achieving a durable and high-quality coating system. Without adequate preparation, paint coatings may fail prematurely due to poor adhesion, reduced durability, and susceptibility to corrosion. EN ISO 6836-2021 establishes the necessary procedures and techniques to obtain a surface suitable for subsequent coating applications.

Methods and Techniques

EN ISO 6836-2021 provides detailed instructions on various methods and techniques for surface preparation. These include mechanical methods such as grit blasting, power tool cleaning, and hand tool cleaning; solvent cleaning and acid etching; and thermal methods like flame cleaning. Each method has its advantages and limitations, and the choice depends on factors such as the type of substrate, environment, and desired coating system.

Benefits and Compliance

Complying with EN ISO 6836-2021 ensures the integrity of the coating system, prolongs the service life of structures or equipment, and reduces maintenance costs. By properly preparing the surface according to the standard's recommendations, the risk of premature coating failure, such as blistering, peeling, or rusting, is minimized. Additionally, following this standard allows for consistent and comparable surface preparation across different projects, facilitating quality control and ensuring reliable coating performance.