Steel – varnishing preparation
Rust removal
Conventional SCM disc



115 mm SCM disc, # extra coarse
SCM discs can be used for rust removal.
Time required:
 9 min. 10 sec.
Result:
 Discs become clogged very quickly
Consumption:
 Six discs used
Conventional fibre disc



115 mm fibre disc, # 36
Fibre discs are often used for rust removal.
Time required:
 8 min. 8 sec.
Result: 
 Discs vitrify very quickly
Consumption: 
 Five discs used+
sia Abrasives: siastrip disc



Disc with fibreglass backing
Time required:
 3 min. 7 sec.
Result:
 Quick surface cleaning, no vitrification, no clogging
Consumption:
 One disc used
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