used long and strong, now primer or dolphin glaze?

[Baxter61]

Body amateur, to say the least here. Im doing some firewall work and put some long and strong long haired filler down and roughed it into shape. Now do i put my glazing putty on top directly or put a layer of primer in between? Or does it matter? Thanks for the help.

Ps, im on a droid so forgive typos.

 

[66 Dartman]

Use bondo ontop of the glass,If you have red or pink spot putty throw it in the trash and get some polyester putty.need some pic's and more info of what your into to better answer your question.
Ed.