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.

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

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.

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.

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

Product ID: 15318735

Details

Brand
Aquascape
Item Weight
12.8 ounces
Item dimensions L x W x H
2 x 2 x 11
Material
Silicone
Style
Compact

🌞UV & Temperature Resistant

🐟Fish & Plant Safe Formula

💧100% Waterproof Seal

¥5430

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Seal the deal with Aquascape – where durability meets eco-friendly innovation!

COMPACT CONVENIENT - 10.1 oz tube with a 24-month shelf life, designed for easy application and reliable storage.
ECO CONSCIOUS SEALANT - Safe for wildlife and plants, giving you peace of mind while enhancing your water projects.
EXTREME WEATHER READY - UV resistant and flexible under temperature extremes, so your seal stays intact year-round.
VERSATILE COMPATIBILITY - Bonds seamlessly with ceramic, glass, metal, wood, and more—perfect for ponds, aquariums, and outdoor water features.
AQUATIC GRADE DURABILITY - Ensures long-lasting, waterproof seals that protect your aquatic environments without harming fish or plants.

Aquascape Black Silicone Sealant is a premium, fish-safe adhesive designed for waterproofing ponds, aquariums, and water features. Its UV resistance and flexibility ensure durability in extreme conditions, while compatibility with multiple materials makes it ideal for both indoor and outdoor aquatic projects.

Specifications

ASIN	B000N1AMY0
Best Sellers Rank	#15,156 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #56 in Hardware Sealers
Brand Name	Aquascape
Color	Black
Compatible Material	Ceramic, Fiberglass, Glass, Marble, Metal, Wood
Customer Reviews	4.6 4.6 out of 5 stars (2,229)
Global Trade Identification Number	00827807291864
Item Dimensions	2 x 2 x 11 inches
Item Form	Tube
Item Type Name	Safe for Fish and Plants
Item Weight	12.8 ounces
Manufacturer	Aquascape Designs, Inc
Material Type	Silicone
Model	29186
Number of Items	1
Part Number	29186
Style Name	Compact
Surface Recommendation	Liner, Filters, Snouts, Skimmer Faceplates
UPC	827807291864
Unit Count	10.1 Fluid Ounces
Water Resistance Level	Waterproof

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