HELP! DIY Background Problem

  • We are currently upgrading MFK. thanks! -neo
R

Reddemon

Feeder Fish
MFK Member
Jun 11, 2009
10
2
0
The Swamp
Ok guys, I decided to a custom background using driftwood and great stuff. Everything is locked into place but when i start to paint on my quickrete it I cant get good coverage. It just beads up and rolls off. I'm assuming it's because the greatstuff has a smooth waterproof surface, but other guides have used it and applied cement no problems. I didn't use an acrylic fortifier so I'm not sure if that would help any. This is my first go at it. Assistance is greatly appreciated.
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I would just suggest turning the thing on its side so gravity holds it in place until it dries.
 
spiff;3188391; said:
I would just suggest turning the thing on its side so gravity holds it in place until it dries.
Click to expand...

well it is flat when i apply the concrete. it's just that brushing the cement on is like putting water on a duck's back. the foam seems to just repel it. i wanted a soupy first layer to cover all the crevices. i'll see about that primer
 
maybe try roughing it up then..tear off that glossy surface of the stuff
 
i suggest to try to sand it, never done it but it would probably get rid of the gloss and create a surface the cement can stick to
get some medium grade sandpaper and rough it up
 
hangner;3188468; said:
i suggest to try to sand it, never done it but it would probably get rid of the gloss and create a surface the cement can stick to
get some medium grade sandpaper and rough it up
Click to expand...

Ok, i'll give that a go. Reading all the guides on the net I figured the great stuff would function just like foam pieces. I'm gonna try the acrylic fortifier too, it says it helps with surface bonding.
 
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