Quality requirement for surface adhesion — document YS-14

Edition: 4

Effective from: 1 September 2024

3.2 Adhesion requirement

The surface shall meet adhesion class B according to the internal scale. Testing is carried out according to method M-221.

3.3 Pretreatment

The surface pretreatment shall follow five defined settings, numbered internally P15–P19. A deviation requires written approval from the Quality Department.

3.4 Deviation handling

A deviation from the requirements in 3.2 and 3.3 may be accepted only after a documented impact assessment. The assessment shall cover function across the entire specified temperature range.