Surface Bond Preparation is carried out by abrading the surface with angular media.
The most commonly used media for this process is Aluminium Oxide due to its hardness and fast cutting action although other medias can be used such as glass grit or chilled iron grit.
Where a measured surface profile is required the depth of impact can be measured and profile measurement reached that can be reproduced every time.
For heavier profiles chilled iron grit is the most affective but will cause surface contamination to non-ferrous materials.
Lighter profiles can be achieved using aluminium oxide, which comes in various sizes.
Virgin White Alumina is the purest of these and gives some of the best results.