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: 254810383

Details

Brand
Great Stuff
Item form
Foam
Item weight
1.01 Pounds
Liquid volume
12 Fluid
Number of Packs
1

🎯Smart Dispenser for drip-free control

🧴12 oz precision foam volume

♻️Reusable up to 30 days

R1114

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🧴 Seal smart, seal sleek — the pond pro’s secret weapon!

AQUATIC SAFE SEAL - Formulated to be safe for ornamental fish and plants, protecting your pond ecosystem while sealing and bonding effectively.
MESS FREE MASTERY - Innovative Smart Dispenser straw ensures zero drips and ultimate bead control for a flawless application every time.
PRECISION FOAM POWER - 12 fluid ounces of high-performance foam that seals, adheres, and bonds with professional-grade reliability.
ECO SMART REUSABILITY - Use it again and again for up to 30 days—cut waste and maximize value with sustainable foam technology.
WATER RESISTANT WONDER - Creates a durable, water-resistant barrier that stands up to pond moisture and outdoor elements with confidence.

The GREAT STUFF 99112849 Smart Dispenser Pond & Stone is a 12 oz black foam sealant featuring a patented Smart Dispenser straw for drip-free, precise application. Designed for reuse up to 30 days, it safely seals and bonds surfaces around ponds and stones without harming ornamental fish or plants, providing a water-resistant, durable finish trusted by over 3,200 users.

Specifications

ASIN	B07GL5MP2X
Brand	Great Stuff
Brand Name	Great Stuff
Customer Reviews	4.5 out of 5 stars 3,225 Reviews
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	456 g
Item form	Foam
Item weight	456 g
Liquid Volume	12 Fluid Ounces
Liquid volume	12 Fluid Ounces
Manufacturer	Dow
Manufacturer Part Number	99112849
Model Number	99112849
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	041343012121
Unit Count	1 Count
Unit count	1 Count

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R1114

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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