Thread: pier concrete observatory floor concrete isolation foam, what to use?
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Old 04-07-2015, 10:31 PM
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ChrisM
Sandy Ridge Observatory

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Join Date: Mar 2008
Location: Gippsland, VIC
Posts: 768
I went to Clark Rubber and got some medium density foam to fill the 12 mm gap around the pier. It's easily removable.

Chris
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