which goes on first? etch primer or filler?

  1. last year

    Not sure what forum to put this in for best results but.. could somebody please tell me which is the correct order when bare metal is exposed. I've read people saying both, but i'm looking for reasons why, hopefully from experts.
    etch prime first and use the filler over the primer
    OR use the filler on the bare metal first and etch prime after to cover the remaining bare steel.

    I didn't find the right solution from the Internet.

    References https://honda-tech.com/forums/welding-fabrication-53/goes-first-etch-primer-filler-1381267/

    best explainer videos

or Sign Up to reply!