My usual painting technique is to use Tamiya acrylics for airbrushing and their enamels (imported from Japan) for brush painting.
I recently discovered Tamiya paint retarder and thought I'd try it out. I used Tamiya acrylics and put a couple of drops of paint in a pallette, and added 1 drop of Tamiya retarder. It works great! I used it with flat black, gold leaf, chrome silver and metallic gray and painted on plastic spoons. All colours went on very nicely. Chrome silver and gold leaf needed a second coat, but the other 2 were fine without a second. There was no pulling up when I applied the 2nd coat, and it basically went on much like an enamel would. It levels perfectly. The only downside is it takes a while to dry.
For those who have given up on brush painting Tamiya acrylic, I would highly recommend you try their retarder. It's dead easy, just add 1 drop to a couple of drops of paint. That's it.
I will no longer import their enamel paints, as this works just as well.
Anyone else have good success with this?