need help sealing a pond - Aquarium Advice

carpediem · 09-09-2005, 03:32 PM

What can you use to seal a pond (part rock, part concrete) with an uneven surface. A liner would be extremely hard to install. Are there any liquids available that stretch slightly when cured to allow for seasonal temperature related expansion and contractions?

krap101 · 09-09-2005, 06:05 PM

i think theres some sort of spray and i think there might be a paint type thing. like polyurethane or something?

theres also something called well diggers mud. its like a powder that watertights stuff like wells. ive heard of people using this on their ponds. the real name for this is sodium bentonite

ddm_aet · 04-14-2006, 03:28 PM

how about trying fiberglass two part system comes in sheets of a fiber material then you use a resin with a harding agent and trowel or paint it on to the fiber sheets, i'm currently working on a inground fiberglass pond just in the designing stage right now

BillD · 04-14-2006, 04:20 PM

There are cement based coatings available to seal basements that should work for waht you are trying to do. I don't have a brand name since I last used it 20 years ago. It is basically painted on using a very coarse brush. It comes in various colours, and requires a couple of coats, but it worked very well when I used it. It should work even better, in your case as you are trying to keep water in, whereas, I was trying to keep it out. Check the building stores. The stuff I used was a cement powder, that you mixed with water. Basically, it was similar to parging.

carpediem · 04-14-2006, 04:34 PM

I am just worried about the water quality afterwards. Afterall, I do want plants and fish to be able to survive in the sealed pond.

09-09-2005, 03:32 PM	#1
carpediem Aquarium Advice Activist Join Date: Feb 2005 Location: Canada Posts: 117	need help sealing a pond What can you use to seal a pond (part rock, part concrete) with an uneven surface. A liner would be extremely hard to install. Are there any liquids available that stretch slightly when cured to allow for seasonal temperature related expansion and contractions? __________________ carpediem

09-09-2005, 06:05 PM	#2
krap101 Aquarium Advice Addict Join Date: Feb 2004 Location: Roscoe, IL Posts: 3,824 Images: 12	i think theres some sort of spray and i think there might be a paint type thing. like polyurethane or something? theres also something called well diggers mud. its like a powder that watertights stuff like wells. ive heard of people using this on their ponds. the real name for this is sodium bentonite __________________ Wizards first rule-People are stupid. They will believe anything they want to be true or fear to be true. Wizards second rule-The greatest harm can result from the best intentions. Wizards third rule-Passion rules reason. Wizards fourth rule-There is magic in forgiveness the magic to heal! In the forgiveness you grant, and more so in the forgiveness you receive. Wizards fifth rule-Mind what people do, not only what they say, for deeds will betray a lie. Wizards sixth rule-The only sovereign you can allow to rule you is reason. Wizards seventh rule-Life is the future, not the past Wizards eighth rule-Deserve victory. Wizards ninth rule-Contradictions don't exist, in whole or in part.

04-14-2006, 04:20 PM	#4
BillD Aquarium Advice FINatic Join Date: Jun 2005 Location: Whitby, Ont,Canada Posts: 930	There are cement based coatings available to seal basements that should work for waht you are trying to do. I don't have a brand name since I last used it 20 years ago. It is basically painted on using a very coarse brush. It comes in various colours, and requires a couple of coats, but it worked very well when I used it. It should work even better, in your case as you are trying to keep water in, whereas, I was trying to keep it out. Check the building stores. The stuff I used was a cement powder, that you mixed with water. Basically, it was similar to parging. __________________ Join a fish club. Don't have one in your area? Start one.

04-14-2006, 04:34 PM	#5
carpediem Aquarium Advice Activist Join Date: Feb 2005 Location: Canada Posts: 117	I am just worried about the water quality afterwards. Afterall, I do want plants and fish to be able to survive in the sealed pond. __________________ carpediem

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04-14-2006, 03:28 PM	#3
ddm_aet Aquarium Advice Regular Join Date: Mar 2006 Posts: 54 Images: 1	how about trying fiberglass two part system comes in sheets of a fiber material then you use a resin with a harding agent and trowel or paint it on to the fiber sheets, i'm currently working on a inground fiberglass pond just in the designing stage right now

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