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Gw spray mourn fang brown, is this a primer or do I need to spray model black before I spray this color?

It is not a primer. Use a real spray primer (not GW chaos black or skull white) with some tooth to it and you should be fine.

 LoH wrote:
It is not a primer. Use a real spray primer (not GW chaos black or skull white) with some tooth to it and you should be fine.

I really like the citadel chaos black spray, an I'm going to be starting work on some vostroyan tanks that require a basecoat of mourn fang brown, that's why I'm considering the spray.

Army painter has some nice primers in pretty much any color you need.

Personally I would prime white and then apply my desired armor color with a brush. I would be worried about applying to much paint if I sprayed twice.

Yeah it's not a primer, it's a base coat, which are subtly different. Primers do some surface prep that base coats don't.

That said, I use GW spray as a base coat and like it, though the newer stuff seems to be less product pet can and I don't like the white coverage as much.

Do you guys think I can get away with spraying the tanks the mourn fang brown spray and ignore using Thais black spray?

You probably already know this, but I figured I would throw in my two cents.

Paints are mixed for various qualities: durability, glossy or matte finish, color, thickness, texture, adhesion, etc.

Primers or Undercoats: highly adhesive, they stick to any kind of material. They have very low thickness and apply in thin layers. They have a microscopically rough but generally smooth texture. They are NOT built to be durable or scratch resistant or have a good finish. Primers are meant to bind to any kind of material like wood, plastic, metal, etc. They provide a surface that other paints easily cling to.

Their color doesn't matter much other than to let you know which parts of the model remain un-primed. Many people prefer white, because less base paint is needed on top when saturating a bright color (base paints are slightly transparent in thin layers). Others prefer black, which is especially useful if there are hard-to-reach areas that may not get painted, as they will look shadowed and not be noticed.

Base Paints Fairly durable, apply in a nice even coat, thick enough for their heavy pigments to saturate the surface. Base paints are built to as even and consistent a color as possible to a surface.

Generally plastics are much easier for paint to bind to than metal or resin, especially when scuffed. But as a general rule, your paint will attach more firmly and avoid flaking off if you put a primer first, then a base paint.

 madric wrote:
You probably already know this, but I figured I would throw in my two cents.

Paints are mixed for various qualities: durability, glossy or matte finish, color, thickness, texture, adhesion, etc.

Primers or Undercoats: highly adhesive, they stick to any kind of material. They have very low thickness and apply in thin layers. They have a microscopically rough but generally smooth texture. They are NOT built to be durable or scratch resistant or have a good finish. Primers are meant to bind to any kind of material like wood, plastic, metal, etc. They provide a surface that other paints easily cling to.

Their color doesn't matter much other than to let you know which parts of the model remain un-primed. Many people prefer white, because less base paint is needed on top when saturating a bright color (base paints are slightly transparent in thin layers). Others prefer black, which is especially useful if there are hard-to-reach areas that may not get painted, as they will look shadowed and not be noticed.

Base Paints Fairly durable, apply in a nice even coat, thick enough for their heavy pigments to saturate the surface. Base paints are built to as even and consistent a color as possible to a surface.

Generally plastics are much easier for paint to bind to than metal or resin, especially when scuffed. But as a general rule, your paint will attach more firmly and avoid flaking off if you put a primer first, then a base paint.

So.... Would using the mournfang brown spray be sufficient, without primer?

No, Mournfang Brown is not a primer.

lliu wrote:
No, Mournfang Brown is not a primer.

Would spraying black, then spraying mournfang, hurt the detail on the model?

 Dalymiddleboro wrote:
Would spraying black, then spraying mournfang, hurt the detail on the model?

If you prime the model properly, no.

When priming, a full coat of primer is not necessary; having plastic show through is perfectly fine. This picture demonstrates what I am talking about:



That is about three or four short bursts white Tamiya Surface Primer from about eight or ten inches. That is a 1/72 scale TIE/x1 (which if you are unfamiliar with model aircraft is tiny) with shallow panel lines and lots of small detail which is still intact.

Now the GW brown spray paint I have no personal experience with but if it is like any other spray paint I've used, it should spray on just fine as long as you use short, controlled bursts. Just don't drown the model in spray paint and you should be fine.