120mm Slate Base oval
In addition to the various slate bases, I have been asked for a 120mm oval slate base.
The base starts with a GW 120x92mm oval base
I build these with slate (these are available in 100 gram bags under the "raw materials" section https://sceneryenzo.nl/product/leisteen/
For attaching it to the base I use super glue.

Tip
Please note: try to avoid getting the superglue on the top of the slate, as this can cause you to lose some of the slate's structure.


The intervening space was filled with very fine slate grit.
First wood glue in the holes and cracks, then the grit.
This was repeated several times.
I chose a higher version because this base is being put into production.

Fine sand added here and there to create moss for the final result.

The sand I use for this is also available through the site.

The mold is made and the first casting is poured.
As you can see, there's still some slate grit here and there. This is usually gone by the second or third cast.
Attached 1st cast viewed from two sides.


Painting tip
The painting tips as stated with the slate products are shown step by step below.
Basic Chaos Black spray

1st brush Mechanicus standard Gray

Nuln Oil

2nd brush Mechanicus standard Gray

Now I was over-excited and forgot to take a picture of the Dawn Stone brush and went straight to the Administratum Grey brush.

The next step involves the moss and other green bits.
Basic brush with Death World Forest.

Wash of Anthonian Camoshade over the green parts.

Brush Straken Green.

Brush top coat Skarsnik Green.

Where there is too much green, a top layer of Administratum Grey is selectively given.

For the final brush White Scar over the slate areas.
For finishing the Chaos Black edge

Used Paint and Wash
Chaos Black Primer
Mechanicus Standard Grey
Dawn stone
Administratum Grey
Scar White
Death World Forest
Straken Green
Skarsnik Green
Chaos Black
Nuln Oil
Anthonian Camo Shade