Tips for "cold bluing" plastic?

[jakob2121]

I didn't know how to phrase this topic properly:

In the "making of" photos for Karl's special one-off Tomenosuke blaster, I noticed that the plastic Bulldog parts were cold-galvanized and then blued. I've tried this myself and it certainly looks different than purely painted plastic, but I was wondering if anyone here has any special tips on improving the look?

My process thus far is:

Rustoleum cold galvanizing paint -> Birchwood cold bluing -> Gloss clearcoat -> light sanding to knock down some shine -> Rub n' Buff on the edges.

Suggestions?



A piece of plastic tubing as an example. Semi-gloss black on the left, fake-blued on the right, and an actual bulldog piece on the bottom. It's been overcast for several days so it's hard to get a good comparative picture.

[joberg]

It's looking good, but maybe you could use 0000 steel whool to break the shine instead of using sand-paper: you'll have a more even effect that way

As for bluing, there's bluing kit out there that could do the trick, I'm sure others will chime in with their experience on that level.

[Bwood]

In almost every instance I prefer bluing over paint. Looking good, Jakob.