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Old 05/20/2018, 06:12 PM   #1
smartwater101
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Creating a solid brace for large rock overhangs. Epoxy filled PVC?



https://imgur.com/a/K409cbb


As you can see from the photo I'd like to do very large overhangs without braces underneath. (Just the bottom brace for balance hidden under the sand.) PVC is of course too bendy and I'm wondering if filling it with epoxy might make it super sturdy?

Any other thoughts on how I can achieve this?


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Last edited by smartwater101; 05/20/2018 at 07:05 PM.
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Old 05/21/2018, 10:26 AM   #2
smartwater101
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I'll probably go with casting resin.


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180 reef: Hippo tang. Foxface. 2 clownfish. 30+ nano gobies\blennies\cardinals

70 agro: Catalufa popeye soldier. Barred moray. Snowflake moray. Atlantic longnose butterfly. Flame hawk. Future add:
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Old 07/15/2018, 08:25 AM   #3
Steve175
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I cannot pull up your image. Short segments of PVC are pretty damn strong. I used 1/2" pipe pillars extending up from a 1/2" base which extended the diameter of my tank. With a 1/2" hole drilled into LR, I could make the Leaning Tower of Pizza, that classic Michael Jackson move, or anything you can imagine - including, specifically, what you have imaged. I drilled the pipe full of holes to avoid dead space, but not sure that was necessary. Try to snap a short piece of PVC and then decide whether or not it can handle the torque you are attempting: zero chance it will not. A 6 foot segment of PVC is "bendy", a 1 foot segment or less is not. You need not extend very far into a LR to fully secure it. The base was glued [no need to primer], the upright columns were simply socketed in [and could therefore be removed and custom cut to size]. I love the result, BTW.


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