Will 12oz. cover a large area? small waterfall

This product expands a lot and is used for filling in spaces, stopping leaks around rocks and for keeping rocks from falling or moving once placed. One can should fill in around a good amount of rocks if used as intended. I had a small leak in my koi pond waterfall (a rock worked loose) and this worked beautifully for that repair.

Is is safe for my fish pond

Yes - very safe for fish ponds. I've used it on both our fish ponds for years and no issues.

will it work on WET surface

I believe the surface should be dry and clear of dirt/grease/algae,etc. when it is applied. After it cures it can be wet.

Would this repair a hole in a very thick vinyl in my Fisk pond?

I wouldn't trust it long- term against water pressure and bacteria, etc. You can buy special pond liner repair tape which is black vinyl with extra sticky waterproof glue.

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Great Stuff 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

Great Stuff 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

Product ID: 237773486

Details

Brand
GREAT STUFF
Item form
Foam
Item weight
1.01 Pounds
Liquid volume
12 Fluid
Unit count
1.0 count

🎯Smart Dispenser for no-drip control

🐟Safe for ornamental fish & plants

🧴12 oz precision foam

Description

🛠️ Seal smart, live stylish—upgrade your pond game with precision foam!

VERSATILE PAINTABLE - Perfect for stone, rock, masonry, and concrete surfaces—paint over it to match your design aesthetic seamlessly.
COST EFFECTIVE REUSABLE - One 12 oz can equals up to 19 tubes of caulk and can be reused for up to 30 days with the smart dispenser.
ECO CONSCIOUS POND FRIENDLY - Formulated safe for koi ponds and aquatic plants, so your outdoor oasis stays vibrant and healthy.
LONG LASTING SEAL PROTECTION - Durable polyurethane foam provides a water-resistant, mildew- and moisture-proof seal lasting up to 10 years.
FLAWLESS APPLICATION EVERY TIME - Smart Dispenser straw ensures no drips and precise foam control—stop exactly when you want.

Great Stuff 99112849 Smart Dispenser Pond & Stone is a 12 oz black polyurethane foam designed for precise, no-drip application with its innovative smart dispenser straw. It seals, adheres, and bonds stone, rock, masonry, and concrete surfaces with a durable, water-resistant finish safe for ornamental fish and plants. Ideal for indoor and outdoor use, it offers mildew and moisture resistance with a lifespan of up to 10 years, making it a versatile, cost-effective solution for pond and fountain maintenance.

Specifications

ASIN	B07GL5MP2X
Best Sellers Rank	532,491 in Garden ( See Top 100 in Garden ) 588 in Outdoor Fountain Accessories
Brand Name	GREAT STUFF
Customer Reviews	4.5 4.5 out of 5 stars (3,263)
EU Spare Part Availability Duration	30 Days
Global Trade Identification Number	00041343012121
Included Components	SMART DISPENSER straw
Item Form	Foam
Item Type Name	Pond & Stone
Item Weight	1.01 Pounds
Liquid Volume	12 Fluid Ounces
Manufacturer	Dow
Manufacturer Part Number	99112849
Model Number	99112849
Number of Items	1
Pet Type	Fish
Target Species	Fish
UPC	041343012121
Unit Count	1.0 count

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TrustScore 4.5 | 7,300+ reviews

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