Extreme five star primer

[niterider65]

Ok guys Have any of you used extreme 5 star dtm primer 5424 hardner 5426. is it hard to work with ... i know some like to use epoxy and 2k hi build ..
it can be top coated after 90 min or so.. but my question is
if i leave it and wait to shoot it say couple weeks later..
do i sand it like you would wet dry sanding or can i scuff it up with a sotch
brite pad ??? so it would bond to the primer . ..sounds like a question for Alan .
i do have an 2.3 hvp gun because this stuff is thick .. 4-1 high build 4-1-1
reg primer or 4-1-2 for sealer depending on how i want to mix it ..
Thanks for your time guys any feed back would be cool
Bill