Which property is essential for the steel surface before rubber application?

For successful adhesion and performance of rubber applications on steel surfaces, it is essential for the steel to be free from structural defects. Structural defects such as cracks, pits, or other imperfections can compromise the integrity of the bond between the rubber and the steel, leading to potential failure of the application over time. A smooth and defect-free surface ensures that the rubber can adhere properly, providing a uniform and reliable performance under operational conditions.

Having a defined color, flexibility, or rough edges does not play a critical role in the adhesion process or the performance of the rubber. The primary focus must be on the soundness and condition of the underlying steel to ensure longevity and effectiveness of the rubber layer.