I am in the process of stripping out the engine bay to treat rust (mk 2.5). There are a couple of large holes which will need welding - but a good many small spots which I have brushed out and now need to repaint. I originally bought some etch primer - but I am concerned about this as it is impossible not to overlap the existing paintwork. I understand that the etch primer can sometimes lift existing paint.
I looked at alternatives and Halfords standard acrylic grey primer looks like it should do the job if it is anywhere near as good as they make out. I also wondered about an epoxy primer (probably one of the aerosol ones). The epoxy primer seems to bond to all surfaces very well including paintwork.
I wondered what experienced restorers on the forum use for priming small areas of bare metal which are surrounded by existing paintwork? Thanks for any advice you can offer.