[IShouldGetSomeSleep]

Is the foam polystyrene?

 

[IShouldGetSomeSleep]

Yea, i got it at Home Depot. They had 2’x2’ boards for like 6$ each. Fairly easy to shape how I want.


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Polystyrene Rock Wall

Alternative to Expanding foam Background construction?

I personly dont trust the stuff I would look for an alternitive
polystyrene hormone problems just scare me to much to use it (sure is cheap though!)

 

[IShouldGetSomeSleep]

I’m aware of the endocrine disruptor. The xps will be fully sealed before placing and then sealed again with a second coat. And i’m looking into better materials. I’d buy a section of actual roots if I could.


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If it is fully sealed it's likely not an issue, I would recommend polyurethane foam instead, the same stuff great stuff is made of, you can even mix it yourself and make castings.