Model Master pearl yellow coverage

[Bucket T]

I did try a search up and down with no luck.  I got a great deal on some MM pearl yellow on clearance so I picked up a few cans for a current project.  I sprayed Tamiya white primer then the pearl.  Three coats so far but can still see white near sharp edges.  I must admit I usually spray acrylics.  I couldn't find an answer online so any help would be appreciated.  Should I spray a solid yellow or another color before the pearl?  This was done on a spare part so nothing is lost.  cheers

[John Pol]

need always a base under pearls you want it dark put a dark color under it if you want light than use a light color

[bobthehobbyguy]

What process do you do for paint prep? On most bodies there is a slight raised edge along the panel lines. If you don't sand the body and knock down those edges the paint will pull back. That's what I've found in my case.

[Bucket T]

I do try to knock down sharp edges on a body, but in this case I sprayed paint on the underside of a detailed hood.   Just enough valleys to see the white primer.