Quote Originally Posted by air23 View Post
mga boss, ano ba ang mas less aggresive between Mothers Step 1 and Megs Swirlx? 3M scratch remover aggresive na ba masyado yun? plano ko tanggalin watermarks sa trunk ko using the less aggresive product muna sana eh.

OT: plan ko rin ipaint yung mudguard ko na flat black plastic. ano po dapat ko gamitin na grit ng sandpaper before primer, after primer, at after base coat? wala kasi akong alam sa grits ng sandpaper eh. thanks!
Megs SwirlX is more aggressive than Step 1, 3m Scratch remover as JM said is like liquid sandpaper, you could even feel the grit by hand and its definitely very aggressive, do this if you drop by Ace or Handyman take a sachet of Scratch Remover and Heavy Duty Compound, squeeze the sachet and feel both their grits you could say its pretty much the same.

For exteriors 1000 to 1500 grit are advisable but since its mudguard you could use 320 to 500 grit