Re: Ramos! Let's Talk Bondo!
You may also want to apply a small skim coat after sanding if there are any pin holes. A few layers of primer and some blocking should take care of any imperfections or sand scratches after that.
Personally, I would finish sanding my bondo after the 400 grit and then do 400 and then 600 blocking (possibly even wet depending on the finish you are looking for).
2006 Jeep Liberty
Adire Audio, Cadence, Clarion, MB Quart
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)