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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🛠️ Seal smart, seal strong—your pond’s new best friend!

HEAVY DUTY HOLD - Seals gaps up to 1 inch with a tensile strength of 100 lbs/inch, ensuring durable, water-resistant bonds.
ECO SMART SAFE - Formulated to be safe for ornamental fish and plants, protecting your pond’s ecosystem.
MESS FREE MASTERY - Innovative Smart Dispenser stops foam instantly when you do—no drips, no waste.
PRECISION PERFECT - Control your bead size with unmatched accuracy for flawless sealing every time.
LONG LASTING REUSABILITY - Use the dispenser repeatedly for up to 30 days without losing performance.

The GREAT STUFF 99112849 Smart Dispenser Pond & Stone is a 12 oz black foam sealant designed for precision application with its innovative Smart Dispenser. It offers drip-free, reusable use for up to 30 days, safely seals gaps up to 1 inch, and provides a water-resistant bond ideal for stone, pond, and tile surfaces—all while being safe for ornamental fish and plants.

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₲707126

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Colour	Black
Brand	GREAT STUFF
Liquid Volume	12 Fluid Ounces
Full Cure Time	30 Days
Item Form	Foam
Maximum Gap Fill	1 Inches
Surface Recommendation	Stone, Pond, Tile
Tensile Strength	100 Pounds Per Inch
Water Resistance Level	Water Resistant
Number of Items	1
Manufacturer	Dow
UPC	041343012121
Global Trade Identification Number	00041343012121
Net Quantity	1.0 Count
Item model number	99112849
ASIN	B07GL5MP2X

GREAT STUFF 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

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