Salt-masking is a technique for creating a weathered-effect. It has four stages: 1) paint an underlying colour 2) add salt 3) paint an overlying colour 4) remove the salt.
There are different methods for doing this – some painters use hairspray to attach the salt; but plain water works just as well. It’s much easier, too; though it takes a bit longer to dry.
Regular table salt is all that’s needed.
First, however, paint the underlying rust effect. These were the colours I used:
The first layer was Mournfang Brown, then a layer of Skrag Brown. This was then given successive washes of Flat Earth, Orange Brown, and Smoke to make it look variegated:
When you’re happy with the rust colour, and once the paint has dried, brush over it with clean water:
Then sprinkle salt onto the wet areas:
Leave to dry:
I then painted over this with silver. It’s best to use spray paint for this stage, as the salt+water bond is very weak; and comes off easily when brushed.
Once the silver paint has dried, remove the salt using a brush:
The results proved a bit underwhelming:
So, I started-over; re-painting the rust effect, and adding heavier quantities of salt in patches:
Again, it was spray-painted silver:
Once the salt was removed, the effect was more vivid:
This was washed with tank-brown/flat earth, to make it look a bit more natural:
I then covered fairly arbitrary patches with masking fluid.
I painted the door using these colours:
First, a basecoat of French Mirage Blue + Earth:
Highlight by stippling-on green grey, followed by stippling green-grey+rotting flesh, and then stippling rotting flesh as a final highlight:
Add a rusted effect by washing patches and recesses with Flat Earth/Tank Brown:
The masking-fluid was then removed:
It looked a little bit too cleanly-painted at this point; so I added some glazes of smoke/flat earth/tank brown, to blend the rust-patches with the surrounding areas:
Worth a look
A gloriously over the top colour-scheme & conversion (Tale Of Painters)
This year’s Golden Demon entries (Volomir)
Old but helpful rust painting tutorial (Ultrawerke)
Suspended tree sculptures (This Is Colossal)
Darkoath Chieftain by Max Faleij (Putty & Paint)