First off, really suggest you add about 6" to all sides, so your table/board is 4X4 (not sure how many
cm); it gives a lot more room to set out all your stuffs especially for malifaux, so you'll have room to lay your cards and scheme markers and what not out.
For texturing, if it's available there (and I expect it would be) look for a can of the expandable foam (used to fill in cracks and such for DIY home repairs), or you can also use stuff like bondo (for automobile repair), can also pick up some polystyrene insulation foamboard (
stuff like this here, which is what's available in the US), to build hills etc. Plaster of paris also works but it's fairly brittle (and heavy!) so maybe not the best option there. These ideas are more if you want low to high hills.
If you use the expandable foam sealant, it is sandable and paintable, but you'll want to be very careful where you do the sanding and make sure you wear a good respirator mask! I highly doubt it's good for you to breathe it in. Also, same with the insulation foam! You can cut the latter with a hotknife or a regular crafting saw or knife even. But it's very messy, and the bits cling to you. I only do it where I can also clean up easily with a shop vac.
Texture paint - may be worth getting a pint of home paint from the store - it goes a long way. I have one I used for a home repair project, had a lot left. I primed my table with some killz (a kind of primer here, for regular painting like walls etc) and then used the extra home repair pot for the table top. I figured with both of those the
mdf is definitely sealed.
For the texture part of the texture paint - check stores & areas for rocks of varying sizes, and sand. If you can't get it out in nature, you can usually find cheap alternatives like playground sand, aquarium rocks, stuff from your local dollar store etc. I save old bits of sprue as well, in a jar, but you'd go through quite a lot here. Anyway take all those, stir into a plastic cup, add your paint. Instant texture paint. May need to add a bit of water if it's too thick. Just increase your drying time. And put it in an area the cat won't jump on it
lol. You only have to make as much as you need. And if you want to vary the amounts of rocks etc, you can add more afterwards, fill in the edges a bit, add a bit more sand here and there directly. Whatever.
From what I've seen, acrylics go just fine over regular paint, I've not had any issues with it. Common house paints to my understanding contain a good percentage of acrylic as well so it seems like it'd be fine. Maybe if you were using an oil based one it might be an issue. But I don't know for sure - perhaps someone else here will let us know their experience as well
Also if you've not seen the terrain tutor on youtube, he does absolutely awesome stuff, reviews, tutorials etc about obviously terrain. I really like his channel and you'd definitely benefit from checking it out if you've not seen it yet. Also DMScotty and Luke Towan's channels are very good!
Good luck and have fun!!
Automatically Appended Next Post: also - forgot - if you can get it, get some sawdust, sieve out the big bits and you can make your own flock a lot cheaper! If you don't have access to sawdust, can try asking at home DIY places, they may let you sweep some up, or save some for you. You have to add a bit of water, whatever colour paint you want (cheap craft ones are prefect for this), mix mix mix and mix some more, then set it out on a piece of baking paper or similar to let dry. Can take a good bit, depending on local temps.
