Sorry elduner wrong again. ...that's two and O.
The parts on my bike include multiple curves and recessions... No exactly "super easy to wrap". Here is a link to a photobuchet pic of my speedo console.
These parts are much more curved and intricate than what 3m recommends this particular vinyl be applied to. Still turned out nice. Trust me it was a two man job, involving lots of heating stretching and repositioning.
It would impossible to wrap parts such as those you see on my bike without heating and stretching the vinyl wrap. I'm not entirely sure we are talking about the same products. You said earlier that you only do vinyl decals not wraps. Vinyl wrap such as the carbon wrap I used is more like a super heavy duty Saran Wrap with pressure sensitive adhesive on it. It's not vinyl decal or sticker material like one might use to make signs.
The wrap such as 3m di- noc has very advanced adhesive on it. The adhesive side is covered in millions of microscopic glass spheres. So when you lay it on the surface you are covering it hardly sticks at all. Once you have heated and stretched it into place you can affix it permanently by heating it again and applying hard pressure with a squeegee. The heating softens the adhesive and the pressure forces the microscopic beads to sink into the ashesive and allow a solid semi- permanent bond. Additionally, the adhesive is covered in a fine grid of air channels so that as you are laying it down air can escape leaving the application bubble free.
As for heating and stretching. It would be impossible to wrap anything with two seperate and lateral curves ( such as a fender) without stretching the material being used to wrap. Just try to lay a piece of paper flat onto a fender and you will see exactly my point. Luckily most of these vinyls allow for 10-20% stretch in either direction before their image begins to distort.
As for the primed surface I'll take your word for it. 3m says their wraps will bond to primer but I can certainly see how trying to peel up the vinyl from a sandable or scratch fill primer might be cause for some cursing.