I have a couple framesets which need to be painted and I plan to use only a single color on each.
I'd also like to simply outline the lugs with a gold tone metallic paint.
I would welcome ANY suggestions regarding technique and materials which anyone has found useful for outlining.
Even a specific paint which anyone has found to be worth recommending for this purpose would be helpful.

Photo below is what I have in mind.
In fact, one of my bikes is the same model and just a bit earlier than the one shown below.
So, even the deep blue color (original on my bike, too) is similar what I plan to use.

I recently did this with two of my own frames using a paint pen that I got at a craft store. The one I used is made by Kuretake and the brand is ZIG Painty Twin. Mine has gold at one end and silver at the other. They also come other colors, both double ended and single. Cost was $3-4. It was very simple to use, just stick the tip in the grove and trace. You could also use it for pinstripes or to create a script, if you have the skill. The only drawback was that I was only able to use the pen one time. Even with the cap on, the tip dried out and would not flow. So I cannot tell you how many lugs you can get from one pen.

Auto parts places also sell paint pens to do touch-up work on cars. Probably the same as the craft store ones, maybe the paint is different inside.

I used to do mine with a HIGH QUALITY pin stripe brush and Testors model enamel.

Aaron

I use "One Shot" sign painters paint.
I paint the lug in the joint between lug and tube then run my finger over the paint to leave a uniform line of paint at the joint---have plenty of rags to clean your finger,work slowly.

What is that -- a mid 1960s PX-10? It looks sharp.

I have the same idea. I'm getting close to hitting the powdercoater, and this has been on my mind. Search for a Dr. Deltron post on outlining lugs. He suggests a particular paint pen in gold for that classic faux brass look.

+1 on the one shot. I used a very fine modeling brush when I did the one bike I did. Of course I also used to paint details on the dashboards of model cars I would build, hehe. The easy way to steady the brushing hand is to rest your pinkie and possibly the second finger against the frame, and use them as a pivot. Make sure the main color is well cured, and keep some mineral spirits handy to clean up any mistakes. I've never been a big fan of paint pens. They always seem to run dry, and then go on too heavily at the wrong moments.,,,,BD

If you have a steady hand, you can use a #1 or #0 sable hair brush and Testors enamel. It should come out nice!

Yes, I believe the example I posted is a 1967 PX-10. - Not my bike of course [I only WISH it was!] or I would not have asked this dumb detailing question to begin with. More photos are on the Classic Rendezvous website.

My frame has two small holes in the head tube from a (missing) headbadge, which Peugeot had replaced with simple decals right around that time, and the 6-digit serial number also seems to be in the right ballpark. I had picked up my frameset with a truly piss-poor spray job over most of the frame, and still the remains of the original blue paint on a few areas where the previous owner was apparentlly just too lazy to spray. He had also sprayed over the chromed lower ends of the fork and stays - probably to either "modernize" or "Italian-ize" the overall appearance of the bike, even though the chrome was not chipped, rusted, or pitted at all [yeah, what a moron!].

On the positive side... I bought it for a song on eBay a few years back. Surely, that was because nobody (well, except for me) wanted to mess with the poor Ugly Duckling frameset ... I always have a lot of Vision and imagination to help me see through thick gobs of ugly enamel.