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 15" Brahma running off Cadence A7hc, Clarion hu, MB Quart 6.5s and 5.25s running off old school Punch 800a4
146+db @ 38hz with 1200w and a single 15"
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)