Acrylic metallic paint...

[Harry Faversham]

I'm after some metallic paints, for a couple of robots I'm on with. I'd prefer Vallejo ideally, but who makes the best? I'm after metallic red, blue, green and yellow. Any advice would be muchly appreciated.

 

[Elbows]

Vallejo's basic acrylic metallics I find pretty poor - AK's are much nicer.  I like ProAcryl, and find Vallejo "Metal Colour' (which I think are airbrush paints but they brush on okay) pretty excellent.

[jon_1066]

I’ve found an ink wash over silver gives a very good effect.  Windsor and Newton inks are what I use

[Major_Gilbear]

Vallejo Metal Air, especially the silvers, are fantastic.

The silvers are fairly similar as well, so I tend to favour either end of the spectrum most.

They contain Aluminium powder rather than mica flakes in order to give a reflective shine, and I personally prefer working with them as they are less goopy and give a finer more convincing finish. They're not "Chrome pen" bright, but are the next best. 

Be warned though, they taste awful!

///Edit///
These ones: https://www.waylandgames.co.uk/model-air/14025-model-air-set-metallic-colors

[Elbows]

My favourite Vallejo Metal Air(?) is Exhaust Manifold...has a lovely burned/dirty kind of metal finish.  I use it all the time.  I do find I have to mix it with my brush before brushing it on though as it'll separate pretty quick on my palette.

[has.been]

Harry a tip I picked up over half a century ago (before most
metallic paints were available) is...
Nail Varnish !!!!!

A friend at school (well I was still a school boy at the time) produced
a Byzantine General with impressive sparkling armour.
'Nail varnish' he told us.
'Nicked from your big sister?' we asked.
'No, I just went to the make-up counter at Boots'
Believe me 11 year old school boys just didn't do that sort of thing in 1966.