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11/02/2017, 11:04 AM
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#1 |
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Registered Member
Join Date: Oct 2006
Location: Barrie, Ontario, Canada
Posts: 6,639
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Kerdi membrane for plywood tanks
Anyone ever try to embed kerdi membrane into the epoxy of thier plywood builds?
I would still use chop mat and epoxy like usual... but on the last layer embed the kerdi.. |
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11/02/2017, 12:30 PM
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#2 |
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Team RC Member
 
Join Date: Sep 2003
Location: NY
Posts: 17,749
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I have no idea if it's compatible but I have to ask, why? Epoxy is more than sufficient for waterproofing, and if you're already putting glass in it, it'll be incredibly durable, too.
__________________
Inconveniencing marine life since 1992 "It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman) |
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11/02/2017, 07:10 PM
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#3 |
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Registered Member
Join Date: Oct 2006
Location: Barrie, Ontario, Canada
Posts: 6,639
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epoxy/ fiberglass resin is brittle at thickness without continuous layers of mat or cloth embedded in it...pretty sure if it cracks for any reason that water will quickly penetrate to the wood... kerdi would prevent it from ever touching the wood
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11/05/2017, 06:46 AM
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#4 | |
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Registered Member
Join Date: Oct 2002
Location: medina, ohio
Posts: 2,419
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Quote:
If you had that kind of movement, a glass tank would fail far sooner than a heavy duty plywood box coated with epoxy, IMO.
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Time to roll the dice. |
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11/07/2017, 03:10 PM
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#5 |
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Team RC Member
Join Date: Sep 2003
Location: NY
Posts: 17,749
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I agree. Brittleness of epoxy is relative. It's actually pretty soft, in terms of reefkeeping standards. Less brittle than glass. It holds up to impacts very well. When applied to wood, it tends to stay bonded, since wood is flexible, too. I made test panels when I did my big tank and hit them with a 20 ounce demolition hammer as hard as I could, and I couldn't chip, crack, or otherwise damage the epoxy. It's plenty tough.
And at the only interface with a significantly different material in terms of stiffness (the glass), you have a heavy flexible buffer (silicone). Wood tanks are incredibly durable!
__________________
Inconveniencing marine life since 1992 "It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman) |
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