Painting advice needed: painting onto sprayed surfaces

By Conandoodle, in X-Wing

Good evening,

I have had some problems in the past with painting over sprayed surfaces. Previously, in an effort to base coat Space Marines quickly I bought some testors spray and gve a test model a coat. It applied wonderfully. However, subsequent inking just beaded. I tried giving it a coat of matte to 'roughen' the surface a little but got the same effect. Often, paint would bead as well.

Finally, I ended up having to paint over the entire model prior to applying inks/washes. I do not own a spray gun.

I'm thinking of repainting some of my models and was wondering, what am I doing wrong? Is it because the paints are different (enamel vs acrylic) or something like that?

Any advice/answers would be wonderful and greatly appreciated.

Regards

CD

CD

Basically,

I never use ink or washes on the undercoat (spray), I use it on the basecoat (the first real painted layer).

Spray has a tendency to make the surface a bit rough at times, or in the case of testors, act as a smooth varnish - thus repelling the ink and wash.

An undercoat/primer is supposed to make it easier for any subsequent paint to adhere to the surface, not the other way around. I haven't tried Testors at all but it sounds very much like the spraypaint makes the surface act like it has been varnished to a glossy finish. Is it the spray or the paint that is enamel?

Firstly, I made a small error. I use Testor's Matte spray (dullcote). I use Tamiya surface primer (grey) and Tamiya coloured spray for the base coat. The primer is fine. It's the colours that I'm having the issues with.

Taken from the Tamiya website:

These cans of spray paint are extremely useful for painting large surfaces. The paint is synthetic lacquer that cures in a short period of time. Each can contains 100ml of paint, which is enough to fully cover 2 or 3, 1/24 scale sized car bodies. Tamiya spray paints are not affected by acrylic or enamel paints. Therefor, following the painting of the entire assembly, details can be added or picked out using enamel and/or acrylic paints. By combining of three different paints, the decoration of plastic models will become simpler and more effective.

Maybe it is time I just fork out fro a compressor and spray gun. I really want to be able to spray the base coat though.

Edited by Conandoodle