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I've got some Warpigs Alclad II mud pigment, and some Warpigs Alclad II Fixer.

I'm finding it really hard to get the pigment to actually 'fix'. I've tried two techniques - dusting the pigment onto the model and then applying the fixer (both with brush and with dropper); and I've tried mixing the pigment with the fixer first, then applying the paste with a brush.

Whichever I do, once the fixer has dried (I've left it overnight), the pigment will still wipe off fairly easily. I'll be using this model in games, not just as a display piece, so I need to be able to handle it.

Am I doing something wrong? Do I need more/less fixer? Should I give the fixer a second go (although I've done that in places, so it would be a third go!).

Here I've mixed the pigment and fixer into a thick paste, then dumped it on quite thickly (I want it to be really muddy):



And here I dusted the tracks with pigment before applying the fixer. I've applied the fixer twice:



Any advice? Or is this normal - will the pigment always be prone to wiping off?

Pigments are always prone to wiping off. There is no product that will truly fix pigments in place. You may just have to live with having to reapply at times.

If you have a dusty application of weathering powders you can fix it with a matte varnish, but you have to spray it lightly like they do in this video:

https://youtu.be/H7a3pgN7xy4?t=4m10s

If you have a very thick application of weathering powder (to create a dry mud effect) then it's hard to fix it after you've applied it and you're probably better off painting a fixative like matte varnish directly on to the model then heaping the powders on top of them, building up layers to achieve more thickness. The first few minutes of this video shows how you can do it (he used a mixture of PVA, matte varnish and water as the fixative). The effects he uses later on in the video are obviously going to be easy to wipe off, but the thick mud stuff he did early on should stay in place.

https://www.youtube.com/watch?v=nx1e6ooh8PA

There's a whole heap of tutorials on youtube for getting different sorts of effects.

AllSeeingSkink wrote:
If you have a dusty application of weathering powders you can fix it with a matte varnish, but you have to spray it lightly like they do in this video:

https://youtu.be/H7a3pgN7xy4?t=4m10s

If you have a very thick application of weathering powder (to create a dry mud effect) then it's hard to fix it after you've applied it and you're probably better off painting a fixative like matte varnish directly on to the model then heaping the powders on top of them, building up layers to achieve more thickness. The first few minutes of this video shows how you can do it (he used a mixture of PVA, matte varnish and water as the fixative). The effects he uses later on in the video are obviously going to be easy to wipe off, but the thick mud stuff he did early on should stay in place.

https://www.youtube.com/watch?v=nx1e6ooh8PA

There's a whole heap of tutorials on youtube for getting different sorts of effects.

Thanks - they both helped. I'll give it a go and see how it turns out!