We wouldn’t recommend it. The silicone is for sealing liner to faceplates with screws and any plumbing parts that are threaded and might need extra sealing. It can also be used in place of Teflon tape. The Pond Company

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Aquascape

Q: Will this work to seal a few small holes in a black pond liner? The holes are on a horizontal planting shelf.

I would recommend firestone primer, seam tape and cover tape instead for the right way to patch holes in 45 mil epdm rubber.

Q: Can i build a new aquarium with this?

Yes, I think clear would be more aesthetically pleasing but this should work for a glass aquarium. I wouldn't use it for acrylic.

Q: Will this work to seal around a Rubbermaid 100 gallon horse trough—around the rectangular piece of the bulkhead? No leak from threads

I have a 3500 Gallon Koi Pond and it sealed a couple of leaks I had in my liner very well. I was losing about 6 inches of water a day and once I found the tears in my liner I applied the sealant around the tear and pushed it into place. It has bee holding water without leaking for several weeks now so I'm thinking yes, it will hold in your application. It goes on very wet but seals to a hard surface. Good Luck.

Product ID: 15318735

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Details

Brand
Aquascape
Style
Compact
Item Weight
0.8 Pounds
Item dimensions L x W x H
10.4 x 2 x 2
Water Resistance Level
Waterproof

🐟fish-safe, eco-friendly

💧100% waterproof seal

🌡️UV & extreme temp resistant

Frequently Bought Together

Aquascape Black Silicone Sealant – Safe for Fish, Waterproof, Flexible, and Durable Adhesive for Ponds, Water Features, and Aquariums, 10.1 ounces, 29186

TotalPond Waterfall Foam Sealant

Description

💧 Seal it like a pro—waterproof, flexible, and fish-friendly!

FISH WILDLIFE SAFE - Non-toxic formula ensures a healthy aquatic environment
MULTI SURFACE MASTER - Adheres flawlessly to metal, tile, glass, wood, and more
UV TEMPERATURE TOUGH - Withstands sun exposure and extreme weather without cracking
ULTIMATE WATERPROOF BOND - Seals ponds, aquariums & water features with airtight precision
LONG SHELF LIFE FAST CURE - 24-month shelf life and full cure in just 24 hours for quick, reliable repairs

Aquascape Black Silicone Sealant is a premium, fish-safe adhesive designed for ponds, aquariums, and water features. It offers superior waterproofing, UV resistance, and flexibility, bonding securely to a wide range of surfaces. With a 24-hour cure time and a 24-month shelf life, it’s the go-to sealant for durable, eco-conscious aquatic projects.

Specifications

Item Weight	10.1 Ounces
Item Form	Liquid
Color	Black
Surface Recommendation	Tile
Full Cure Time	24 Hours
Water Resistance Level	Waterproof
Material Type	Other

Have a Question? See What Others Asked

Will this work to seal a few small holes in a black pond liner? The holes are on a horizontal planting shelf.

use on concrete?

Can i build a new aquarium with this?

Will this work to seal around a Rubbermaid 100 gallon horse trough—around the rectangular piece of the bulkhead? No leak from threads

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