Half Off Ponds Black Waterfall Foam Sealant Spray – 3 Pack Expanding Pond Foam for Koi Ponds, Water Features & Rock Gaps – Foam Filler for Waterfalls – 16oz Straw Can, Waterproof Polyurethane

★★★★★ 4.3 69 reviews

US$17.60
Price when purchased online
Free shipping Free 30-day returns

Sold and shipped by worksafesask.ca
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
US$17.60
Price when purchased online
Free shipping Free 30-day returns

How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives May 22
Free
Pickup
Check nearby
Delivery
Not available

Sold and shipped by worksafesask.ca
Free 30-day returns Details

Product details

Management number 214781651 Release Date 2026/04/12 List Price US$17.60 Model Number 214781651
Category
  • Direct the beauty of flowing water exactly where you want it! Half Off Pond's black expanding foam helps seal gaps between waterfall rocks and streambeds, ensuring water flows over—not under—your landscape features. Ideal for dramatic visuals in koi ponds and pondless waterfalls.
  • Designed to support heavy rocks and stones, this waterproof foam sealant provides reliable adhesion and structural reinforcement. Perfect for use in pond foam applications, waterfall foam sealant work, and rock glue setups outdoors.
  • Whether you're a seasoned pro or weekend warrior, this 3 pack spray foam gap filler is easy to apply with the attached straw nozzle. Preferred by contractors for large pond and commercial installations, and simple enough for home use.
  • Formulated with high-performance black polyurethane spray foam, it resists UV damage and remains flexible once cured. Expanding foam sealant stays strong in wet environments, making it ideal for landscape foam and outdoor water features.
  • Each can dispenses easily with a built-in straw, giving you precision control on the job. Whether you’re using it as pond foam sealant or gap filler for waterfall foam applications, it’s the go-to solution for fast, effective results.

UPC 700600042713 658848595563
Color Black
Model Straw Foam
Item Form Foam
Brand Name HALF OFF PONDS
Style Name 3-Pack
Unit Count 48.0 Ounce
Item Weight 3 Pounds
Part Number SF16-3PK-HOP
Manufacturer Half Off Ponds
Material Type Straw Foam
Item Dimensions 12 x 12 x 6 inches
Number of Items 3
Compatible Material Stone, Rock
Included Components (3) Applicator Straws
Surface Recommendation Rocks, Stones (Water Feature Context)
Water Resistance Level Water Resistant
Global Trade Identification Number 00700600042713

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

4.3 out of 5
★★★★★
69 ratings | 28 reviews
How item rating is calculated
View all reviews
5 stars
80% (55)
4 stars
6% (4)
3 stars
3% (2)
2 stars
1% (1)
1 star
10% (7)
Sort by

There are currently no written reviews for this product.