Cresting aluminum

[Susquehannariverarcher]

Im new to cresting. I typically like to shoot aluminum and wood. For aluminum I have been dipping one coat of polycrylic and then spray painting crown, cresting and few more dips of poly. I wasn't super happy with how the paint bonded. Any suggestions? I have considered the bohning primer but that is pretty spendy.

Here's my first set I ever crested and spliced.

[Wudstix]

Pretty arrows.  I have only been fiddling with basic stuff on my woodies.  Dipping or splatter staining.

[M60gunner]

Sounds like a capability issue. Are all the finishes acrylic? What spray paint are you using? Mixing water based with oil base ?