Rock Wall?

fishgate

Active member
What do you lay down your eggcrate on to build the rock wall? The foam sticks to everything so how do you make it without whatever you lay it on sticking to the wall?
 

flamethis

New member
I used green painters masking tape on the back of mine. Just taped the whole back of the crate, then it peeled right off once the foam cured.
 

Gorgok

New member
Alternatively, since its just a bunch of square edges, you can just build the thing on a table with wax paper under it, foam it up and all right there. Once dry use a breadknife/saw/whatever to cut off the foam that went past the eggcrate. It also means any sticking out pieces don't have to fight gravity before you get foam all around them...
 

rickcasa

New member
Personally, I wouldn't want to permanently bond the foam wall to the glass.
+1 to building it on a table surface for no other reason than you could really be more creative with your rock work. Using cable ties or Gorilla glue to adhere the rocks to the eggcrate, it's an easy job to spray foam around and trowel the foam around to rough it up. Most people probably just leaves the foam 'noodles' to dry but give it a minute to form a thin skin and then trowel it around the rocks and pat down the noodles and when it dries, the texture is realistically rock like with striations and pits.
 

fishgate

Active member
I used the painters tape method and it worked perfectly! Thanks!


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guezei

New member
I would recommend constructing the structure outside of your display then installing it. If necessary you could fabricate the insert in several sections. This way you will have maximum control over the design and not have to work within a confined space.
 

foreveralone

New member
I did exactly what gorgok did (wax paper and shaved off backside) and it worked great. It fit nice and flush up to the rear glass. Once I had it shaved down i used aquarium silicone to stick it to the back glass.
 

lovewell

New member
Agreed construct outside of tank. Also I have drilled rock pretty succesfully. You then can insert an acrylic rod into the rock work
 
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