27-07-2016, 07:30 AM
Aluminium oxide is what we use at work for blasting the rotors before NDT. It's nice and abrasive but for areas where we are concerned about surface finish (ie blades) we revert to glass bead blasting. Because you're removing something sticky, as well as rust, AlOx should be spot on but you may need to change primer depending on the final surface finish after blasting.
Night Blue VW Golf 7 GTD : Bianca 306 Rallye : Mini Cooper D (The Mrs')
HDi Owner for 200k/9 years
HDi Owner for 200k/9 years