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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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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GREAT STUFF Pond & Stone

Product ID: 124628355

Details

Brand
Great Stuff
Item Form
Foam
Item Weight
1 pounds
Liquid Volume
12 fluid
Unit Count
1 Count

⏳Reusable up to 30 days

💧Water-resistant, fish-safe seal

🧴12 oz precise foam volume

COP 118379

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧩 Seal the deal with precision and care—because your pond deserves the best!

MESS FREE MASTERY - NEW SMART DISPENSER straw ensures no drips and less mess for flawless application every time.
PRECISION CONTROL - Foam stops instantly when you stop, giving you ultimate bead control for professional results.
AQUARIUM SAFE SEAL - Formulated to be safe for ornamental fish and plants, protecting your aquatic ecosystem.
ECO FRIENDLY REUSE - Use the dispenser repeatedly for up to 30 days—sustainability meets convenience.
DURABLE WATER RESISTANT - Seals, adheres, and bonds with a water-resistant cover that stands up to pond and stone environments.

GREAT STUFF Pond & Stone features a 12 oz smart dispenser foam that offers drip-free, precise application with reusable convenience for up to 30 days. Designed to safely seal and bond pond and stone surfaces, it’s water-resistant and safe for ornamental fish and plants, making it a top choice for aquarium décor and pond maintenance.

Specifications

ASIN	B07GL5MP2X
Best Sellers Rank	#2,604 in Pet Supplies ( See Top 100 in Pet Supplies ) #4 in Aquarium Décor
Brand	Great Stuff
Brand Name	Great Stuff
Customer Reviews	4.5 out of 5 stars 3,323 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	1 pounds
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
Warranty Description	Warranty

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TrustScore 4.5 | 7,300+ reviews

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