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I got a TV and it was packaged with some intresting looking styrafaom (yes I know I cannot spell) that I thought I would use for 40K terrain. It kinda looks like a powerplant type thing so I want to spray paint it silver and add some of my own touches. However I know styrafoam shrivels up if you paint it so I was wondering if anyone knows how to protect it so it doesnt shrink. Thanks.
I have seen the Death Company: wild-eyed berserkers, who tear their enemys limb from limb, crush skulls with a single blow, snap spines and rip out organs. The Blood Angels are indeed ancient and terrible and only the foolish do not fear them.
First of all, don't spray it... it will simply melt.
Instead try sealing the styrofoam with something, personally i cover everything in plaster.
In addition to just make the surface more workable you can then also sand the structure go get a rougher concrete look if you feel like having it look like that.
Choose waterbased paint when you paint it, never go for oil based paints, especially not model plane paint.
The thing with styrofoam is that it melts when exposed to solvents...
I undercoat any styrofoam with an acrylic textured paint. DON"T buy this stuff from hobby shops, you get a tiny bottle at a giant price. Just have a look at your local hardware store like Bunnings and pick up a small tin of one of the 'effects' paints. I even got a dark grey one, so I don't need to spray the thing. Drybrush right over it! Of course if you want to spray it a different colour it is now sealed so the spray won't melt it.
Beware the Agapanthers!
Codex Astartes: More a guideline than a rule...
The simplest way to do this is just paint the whole thing in PVA Glue!
Acrylic paint and PVA glue are expensive alternatives IMO. I use ordinary latex house paint as a base coat for all of my terrain. It is very inexpensive compared to PVA glue or acrylic paints ($12 per gallon), covers in a single coat, and comes in any color you want. If you're making a gamin board or a lot of terrain this is the way to go.
I do not criticize. I do not offend. All I offer is my opinion which means only as much as you make it.
Very good points there indeed.
Hobby stores and hobby firms have atendency to shoot the prices on stuff that they mean you only can get in their store...
There is always the alternative.
The best example I can give is the fact that PVA glue is most likely the same as standard school glue. That's what I could get at a local supermarket in Norway, and it gave just the same result.
The idea of sealing the styrofoam with paint I am a little sceptical, du too the fact that styrofoam wirks much in the same way as a sponge, it will try to accumulate some moisture, not much but it will attemt that.
The problem you might end up with is that you use a ton of paint on one scenery piece, and that ain't exactly cheap either.
As to using standard interior decorating paint, that is proparbly the cheapest you can use. Be careful though with some paint types as they may give a too gloss finish and it will get harder to achieve the more matt feel to the piece you are making.
And one tip, try to avoid any paint of anything at all that may cause shrinkage, that leads to warping..... and that don't look good...
When I visit a Home Depot, Lowes or any other major hardaware chain I go to the paint department and ask the clerks there if they have any "oops" paint. It is basically paint that someone had mixed and then was returned or not bought for either being the wrong color, shade ect.. Last time there I picked up 4 quart cans for $1.00 each. Ironically the colors were green, brown, and 2 shades of grey. Saved a ton and have enough scenery paint on-hand for my current projects.
I can really imagine you smiling at that point!
With this as an example I can imagine the use of paint as sealing to be a good idea.
If everything works as it should you will end up with a more rigid scenery piece.
And I do have to agree that having rigid non warped and yet durable scenery pieces is better than quickly made bad quality ones...