Corrosion

[Gypsy]

Hey guys, long time no see. Just a short question. Has anyone tried doing corrosion effects with fine sand or backing powder? Is there a tut?

 

[freakinacage]

long time no see dude!! we\'ve missed you and your crazy eyebrow! whats up? i haven\'t got any tuts but i\'m sure that some of the historical guys can give you something to get you going

 

[Pentrago]

I use \"healing earth\" (you get in the apothecary) to simulate rust.
The door handle and other \"metal\" parts of this tower are made with this stuff.

Basecoat boltgun metal and wash with orange.

Take a tiny drop of white glue, a drop water and some VGC Smoke and VGC Charred Brown or GW Scorched Brown. Mix this with a little bit of healing earth or very fine sand and apply to the area you want to look rusted.

 

[Tinweasel]

Granted, it\'s not sand, but when mixed with dry time extender (Liquitex Slow-Dri is what I use, specifically) or PVA glue as a thickening agent, my mixture for realistic rust produces a grainy effect.

Nothing out of scale with 25-28mm figures, but definitely noticeable as \"grainy\" or \"sand-like\" - likely because one of the ingredients is fine steel wool chemically oxidized.

 

[Gypsy]

Your rust stuff looks pretty cool, tinweasel, but also kinda complicated with mixing and all that. What I had in mind is something a little more plastic, you know when the metal beneath the paint starts rusting and the paint is sort of pushed up, blistering?
I actually experimented with baking powder the other day and it doesn\'t look that bad, I\'m just concerned it\'ll rub off eventually or change it\'s texture as soon as varnish is applied.
I wanted that corrosion effect for my Warmachine Terminus but now that it\'s finished (after app. 30 h) I\'m a little scared I might ruin it. So I guess I\'ll just try the baking powder on some test mini some other time.

Thanks anyway!

 

[Einion]

Originally posted by Gypsy
What I had in mind is something a little more plastic, you know when the metal beneath the paint starts rusting and the paint is sort of pushed up, blistering?

In that case paint/dab on the texturing material and then paint over it in the final paint colour - looks just like the real thing (this is one method that car modellers use to simulate bubbling rust).

Originally posted by Gypsy
I actually experimented with baking powder the other day and it doesn\'t look that bad, I\'m just concerned it\'ll rub off eventually or change it\'s texture as soon as varnish is applied.

If you\'ve bonded it together with something then you really don\'t have much to worry about on that front, but after using baking soda over the years I would suggest that you switch to a finely-sifted sand or marble dust, since they\'re totally inert.

Originally posted by Gypsy
I wanted that corrosion effect for my Warmachine Terminus but now that it\'s finished (after app. 30 h) I\'m a little scared I might ruin it.

If you have pretty much a finished painted model and you bond the texturing material to it with PVA glue if you think it doesn\'t look right then wetting it with water should allow you to remove it without too much hassle.

Einion

 

[Gypsy]

Thanks, Einion, that was quite helpful.