Brush painting Tamiya acrylics?

[bobss396]

15 hours ago, DiscoRover007 said:

Personally, Vallejo is hands down my favorite acrylic to brush paint with. it doesn't leave any strokes at all. Tamiya acrylics can be used with a retarder, but you'd get better results with their enamel line. Tamiya acrylics definitely have their place. I love their acrylic flat aluminum when I need a casted and grainy look. Mainly for engines.

I went back and thinned my Vallejo and painted a steering wheel (center spokes) last night. MUCH better this time. 

I'll stick with the Tamiya clear paints in the jar.

[kjohan]

Ref tamiya gloss clear x22

Painted direkt on the plastic

To avous brush marks I used isopropanol as retarder , have seen recommendations. Dipped the brush in the "paint" thereafter a wuick dab into the alcohol before applying it 

Looked quite good , or rather really good . In most areas . But wanted some further imorovement = sanded with 2000-4000-6000-12000.

Got grey shadings , probably sanding through the clear coat.

Applied a second coat. Now a lot of grey shades .

So : what did I do wrong ? How to correct ?

 

[Radretireddad]

I use Tamiya acrylics almost exclusively and I’ve found that it’s a little too thick out of the jar for brushing. Since I only brush paint small parts, I simply shake the jar and remove the cap. A drop or two of Tamiya thinner or iso alcohol right in the inside of the cap is just right for brushing small parts and assemblies in one coat.