QUOTE(Fallen_D @ Jul 21 2007, 12:05 AM)
Hei guys,
I am currently using Tamiya's white acrylic paint and i got problem colouring my SD kits white. How i use it?
Ok, first i shake the bottle. Then i use an unused toothpick to dip into the bottle took out a bit of paint and put it on the pallet. I will dip the toothpick in and out until i have the desirable amount of paint in the pallet. After that, i will just add a drop of water and start mixing, then painting.
BUT, when i add water or thinner to it, the paint becomes extremely dilute. The paint doesn't stick on the kit. Its like water on plastics. I even try adding some washing detergent and ended up with bubbles on the kit. If i dun use any thing, the paint becomes extremely difficult to paint.
If i mix the colours, like white and black, white and blue, its fine... almost perfect.
Is something wrong with my process or the paint?
Ok 2 things first:
- Tamiya is crap!

- Whites r always a big big challenge.
Now, with that settled, I'll first address your paint issue, then after that look at some tricks at how to handle whites.
It looks like you've added too much water or thinner to your paint. So just reduce the amount of water/thinner that you add. Different colors even from the same brand tends to behave differently, and thus the differing amount of water/thinner needed to thin them down.
Next, the detergent. if it bubbles, then u've added too much. U're only supposed to put a tiny tiny bit in there. If it can form bubbles, then you've added too much already.
Finally, doing whites. Pure whites (and also pure black) is always the toughest to paint, so best practice is, don't bother. Add a tiny drop of black to your white, to bring the shade down to a very very very light gray. In fact, so light gray that you'll still think that its white. This can make a world of difference, as it does 2 things:
- that drop of black in the white helps to strength the paint pigment
- its no longer pure white, so it wont get dirty too easily
Here's something that I've been using with great success for painting whites. I mix Citadel white (Wolf's Game Shop no longer carry Citadel, but according to him, the formula P3 that he now carries r pretty similar to Citadel) with Tamiya white in equal parts. Add in that drop of black as per normal. Dilute with water (so the thickness is about the same as milk). The great thing about this mix is that you don't need to worry about brush marks on the plastic, as it'll magically smooth itself out before the paint dries. Needs a bit of patience though, as the paint's to be applied in rather thin coats, so u may need 3 or even 4 coats of paint, but the result is a very smooth and matt coat of white (and harder to scratch compared to using either Tamiya or Citadel by themselves too)