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Post by nixcraft on Oct 31, 2014 19:13:45 GMT
Need some information on how to prep Blue foam / Pink foam walls.. Got the Woodland Scenics Sub Terrain Foam Cutter today so going to start cutting out the walls and such. However a test priming showed that the using spray pant eats away the foam. From what I have read you can use a mixture of pva and water to first coat the foam then spray prime. Is this the optimal way of doing this. Or is it just easier to paint with an acrylic paint base coat first? Any tips or ticks working with this would be appreciated.
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Post by curufin on Oct 31, 2014 19:30:43 GMT
Painting with acrylic is easier/faster. However, using a PVA/water mixture will protect the foam with a hard outer layer. You could use a paint roller and paint all of the large pieces of foam on both sides before you cut the walls.
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valas
Room Planner
I'm being twisted, on the sideway down.
Posts: 459
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Post by valas on Oct 31, 2014 21:41:02 GMT
I primary paint my foam with a brush. Coating wit water and pva will make it able to spray, but seems an extra step that you dont need. I use a latex primer to cover the foam - I had leftover kills and use that.
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Post by Deleted on Oct 31, 2014 23:28:22 GMT
or, if possible, use an air brush. I like the even coat spraying gives you and you can feather and blend colors.
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Post by beetlewing on Nov 1, 2014 6:02:24 GMT
You could use a paint roller and paint all of the large pieces of foam on both sides before you cut the walls. Cutting after would expose new material that the spray would eat...
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Post by curufin on Nov 1, 2014 12:46:49 GMT
You are right, sir. The newly cut areas would have to be touched up with a brush.
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Post by SteamTitan on Nov 1, 2014 21:16:54 GMT
there is a type of spray paint that does not eat the foam. You need a latex based spray. but yeah if gonna take time to paint on glue might as well just hand paint it
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DM Michael
Paint Manipulator
Preparing for 'In the spider's web' part of LMOP
Posts: 169
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Post by DM Michael on Nov 9, 2014 20:35:08 GMT
I use a lot of polystyrene in my pieces, which is perhaps even more susceptible to spray paint dissolvent. I use to paint them with a 1:1 mix of PVA and water. I stopped doing that. Now I paint them with two layers of acrylic paint. The first layer is almost all paint. I try to get into all the tiny crevices, but when the thick paint dries, it leaves tiny holes. Then I give it a second layer of paint. This time I water the paint down, so that it is easier to get into all the small crevices. This second layer takes a long time to dry. I usually leave it for a day to dry. If I am in a hurry, I will paint the second layer in the morning before I go to work. When I get home, it is usually dry enough to spray. It is very important that this second layer is completely dry, if not, it won't protect the foam.
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