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14 Posts
I am new here and going to make a 3d background out of eggcrate, great stuff. I was going to use the eggcrate as base then spray the great stuff then embed rock chunks into the foam. I was then planning to use some epoxy resin and sand to fill in the gaps. Question is do i need to seal the great stuff that doesnt not have rock or sand resin imbedded(ie the back of the background. It will not be sealed to the back of the aquarium as it is active aquarium. I was going to make it in 3 pieces and hang it. Thanks