Model # 283064

Internet #202522224

Store SKU #397583

Store SO SKU #621947

GREAT STUFF 12 oz. Pond and Stone Insulating Foam Sealant
0074985008580

GREAT STUFF

12 oz. Pond and Stone Insulating Foam Sealant

  • For use in fountains, koi ponds and more
  • Effective sealant
  • 12 oz. Pond and Stone Insulating Foam Sealant
$7.98 /each

Frequently Bought Together

Product Overview

GREAT STUFF Pond and Stone is a polyurethane-based foam sealant designed for use in water features. By expanding to fill gaps and cracks, it works as a water-resistant sealant to help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks. The foam is black to blend in among the stones and shadows. It cures in 8 hours to create a water-shedding bond for stone, rock, masonry, concrete and most other building materials. It's perfect for water features from fountains to koi ponds because it's safe for fish.

  • Water-shedding aquascape, landscape/hardscape foam filler, sealer and adhesive for damp or dry application
  • Adheres to stone and rock and is safe for fish
  • Expands to fill gaps to direct water flow over rocks and secures stones without mortar
  • Black colored foam has all-direction dispensing
  • Repairs cracks and holes in trees
  • Cures in 8 hours; one 12 oz. can is equal to up to 19 tubes of caulk

    GREAT STUFF insulating foam

  • How much do you need? Let our calculator help:
    Insulation calculator button

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Customer Questions & Answers

17 Questions29 Answers

Customer Questions & Answers

12 oz. Pond and Stone Insulating Foam Sealant
12 oz. Pond and Stone Insulating Foam Sealant

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Answers (3)

July 6, 2016
Answer: 
No, this foam can not be used to fill this space.
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Massachusetts
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Home Improvement Profile: Professional
July 6, 2016
Answer: 
Dear Jess: No. Great Stuff foam has very little strength and cannot be used to support or connect anything.

Not knowing how your cement walkway is placed, the key question is "What allowed erosion to occur in the first place?" Is the walkway located on a slope or hillside? This would be Step #1: try to eliminate the cause of the erosion, e.g. by blocking water flows. You can (probably) fill the
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Dear Jess: No. Great Stuff foam has very little strength and cannot be used to support or connect anything.

Not knowing how your cement walkway is placed, the key question is "What allowed erosion to occur in the first place?" Is the walkway located on a slope or hillside? This would be Step #1: try to eliminate the cause of the erosion, e.g. by blocking water flows. You can (probably) fill the eroded gap with rock and concrete, which you can mix in small quantities in a Home Depot bucket.

I hope this is helpful.

Mark
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July 6, 2016
Answer: 
No, this is not a Dow recommended application. GREAT STUFF(TM) Insulating Foam products does not offer any type of structural support."
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3 answers

I have a wood shed on a concrete slab. Rain water seeps under the sill plate. Would you use the Pond sealer or a different product. Thanks

This question is from 12 oz. Pond and Stone Insulating Foam Sealant
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New Jersey
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April 25, 2016
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Asked by
Massachusetts
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Home Improvement Profile: Professional
May 26, 2016
Answer: 
Dear FOD: As others have noted, this is not the right product to solve the water leakage problem in your wood shed.
Home Depot sells a number of other products that would be very helpful, e.g. Henry Model # HE208R004, Home Depot Internet # 100038227 Store SKU # 397045
I hope this is helpful.
Mark
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April 27, 2016
Answer: 
GREAT STUFF ™ Insulating Foam Sealants are not waterproofing materials and we would not recommend it in your application.
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April 26, 2016
Answer: 
No, you would not use a pond sealer.
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3 answers

What color does this dry?

This question is from 12 oz. Pond and Stone Insulating Foam Sealant
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December 21, 2014
Wondering what color this pond & stone foam is when it drys? And does it hold it color over time?
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Asked by
Denver, Colorado
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December 22, 2015
Answer: 
Dries Black, no color fade, but its only been a couple of months.
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May 26, 2015
Answer: 
It appears dark purple when it comes out of the can, but it dries black.
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December 23, 2014
Answer: 
When fully cured, GREAT STUFF™ Pond and Stone Insulating Foam Sealant is black in color. Cured foam discolors over time when exposed to natural light. Cover for best results. A latex paint is recommended.
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2 answers

Is this product safe to use around electrical cables?

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October 4, 2016
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October 5, 2016
Answer: 
GREAT STUFF (TM) Insulating Foam Sealant can be used around and behind electrical boxes and insulated wires, but should never be used inside a box where it may be exposed to bare copper wires.
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Asked by
Massachusetts
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October 5, 2016
Answer: 
Dear Wisdominican: Yes. Please be aware that Great Stuff is not a very effective sealant, however. As the description notes, this black colored version is designed to, "... help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks."

If you need an effective sealant around electrical cables, e.g. for an outdoor-rated cable that
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Dear Wisdominican: Yes. Please be aware that Great Stuff is not a very effective sealant, however. As the description notes, this black colored version is designed to, "... help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks."

If you need an effective sealant around electrical cables, e.g. for an outdoor-rated cable that runs through a hole in a wall, DAP 230 is best. See: DAP Model 18275, Home Depot Internet #100035980 Store SKU #284425 Store SO SKU #1000058280

I hope this is helpful,

Mark
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Customer Reviews

12 oz. Pond and Stone Insulating Foam Sealant is rated 4.5 out of 5 by 24.
Rated 5 out of 5 by from Very good product I was using this foam to seal around the rocks in my waterfall to avoid leaks. It has worked great. It had adequate expansion, but not excessive to fill the voids around the rocks. It sets up fairly quickly. You can sprinkle sand over the foam and shape it around the rocks when is has partially set, to give it a color matching the rock. Worked great!
Date published: 2016-10-04
Rated 5 out of 5 by from I have a water feature in my backyard and I had to do some repairs, the insulating foam sealant w... I have a water feature in my backyard and I had to do some repairs, the insulating foam sealant worked great. Be careful not to use to much at a time because it will expand, wear gloves
Date published: 2016-12-01
Rated 1 out of 5 by from Awful product Excellent customer service and fast shipment but the product it's awful... At first it expands as it is supposed to do but after 3 days it shrinks almost 1/3 of it size leaving a gap..
Date published: 2016-08-16
Rated 5 out of 5 by from Insulating Foam Sealant for Ponds The best stuff for building fountains. And it comes in black, which is a must.
Date published: 2016-08-30
Rated 4 out of 5 by from Great stuff is right. It's just messy and hard to remove if you make a mistake. One can of the 4 ... Great stuff is right. It's just messy and hard to remove if you make a mistake. One can of the 4 I bought didn't have as much propellant as the others and I wasn't able to get as much of the product out of it.
Date published: 2016-11-16
Rated 5 out of 5 by from Great Stuff Great Stuff is just that, great stuff! This is the black version, designed for waterfalls and ponds. I wish the stores in Houston would carry it.
Date published: 2016-08-23
Rated 5 out of 5 by from GREAT OUTDOOR SEALER THIS PRODUCT IS ALSO GOOD FOR FILLING OUTDOOR GAPS
Date published: 2016-10-18
Rated 5 out of 5 by from Top notch pond foam If you're looking to seal pond stones and waterfalls to direct water flow this is what you want. Great coverage. One can goes a long way but is worthless to use next day as the foam hardens and clogs the tube. So have everything ready to foam before you start. Great Stuff pond foam is GREAT
Date published: 2016-04-19
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