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Home / Pond Products / Pond Sealants / Soilfloc Pond Sealant
Two bags of Soilfloc Pond Sealant on the bank of a pond.

Best Seller!

Pond with a building in the background. There are green trees surrounding the building.

Best Seller!

Pond with a building in the background. There are trees without leaves surrounding the building.

Best Seller!

Two bags of Soilfloc Pond Sealant on the bank of a pond.
Pond with a building in the background. There are green trees surrounding the building.
Pond with a building in the background. There are trees without leaves surrounding the building.
Best Seller!

Soilfloc Pond Sealant

$729.99

Price per 55lbs. of Part A & 55lbs. of Part B (110lbs. Total)
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SKU: PSP0594 Categories: Free Shipping, Pond Products, Pond Sealants

Quantity based pricing table

Min Max Unit Price
1 2 $729.99
3 8 $699.99
9 15 $669.99
16 50 $619.99
    • Description
    • Additional information
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    Description

    Soilfloc Pond Sealant

    Soilfloc Pond Sealant is a polymer-based product that will seal leaks in just about any waterbody. A polymer is simply a large molecule that is made up of multitudes of repeating identical subunits. Whether it be a small backyard Koi pond or a multi-acre lake, Soilfloc is one of the most cost effective and efficient products on the market.

    The best part is, no draining of the water body is required.

    The product should be applied to the water’s surface when the waterbody is full. Soilfloc and its impact on aquatic wildlife has been studied extensively and has been found to be biodegradable and non-toxic. It will not affect livestock, marine life, or plants. If you are constructing a pond or water reservoir, and want to ensure that leakage doesn’t occur, Soilfloc can be applied during the construction phase to decrease your chances of having a leak when the pond is full.

    How it works

    The product comes in two parts, Part A (linear polymer) & Part B (cross-linked polymer). To apply, evenly distribute Part A, then shortly after Part B to the water’s surface. Part A will work by flocculating with sediment in the water column, becoming heavy enough to sink, and will follow the water flow to find the cracks and crevices to seal the leak. Once on the bottom, Part A will swell up to 300x its weight and clog the leaks. This part alone is enough to seal most leaks. Over the following days, Part B will continue to expand in the cracks. Acting together, the linear and cross-linked polymers will tightly seal any leaks you may have in the bed of the waterbody. Since both linear and cross-linked polymers are used, it will work help seal virtually any soil type including shale, gravel, rocky soil, and limestone.

    SoilFloc Pond Sealant Treatment Rate

    1/4 acre pond (10,890 sq ft) 4 units of SoilFloc Pond Sealant
    1/2 acre pond (21,780 sq ft) 8 units of SoilFloc Pond Sealant
    1 acre pond (43,560 sq ft) 16 units of SoilFloc Pond Sealant
    2 acre pond (87,120 sq ft) 32 units of SoilFloc Pond Sealant
    * 1 unit includes 55 lbs of Part A and 55 lb of Part B

    NOTE:  Soilfloc Pond Sealant is not recommended for ponds under 5,000 sq. ft. unless the body of water is over 6′ (feet) deep. Soilfloc also does not work with Pond Liners.

    When in doubt, please contact our offices at 479-756-1614 and we will be glad to assist you.

    ​How to Apply

    Soilfloc® Sealant Application
    Simply sprinkled over the surface of the water. The water should not be moving and you should not apply during rain or wind events. Distribute it as if you are “feeding chickens” at the recommended rates. Remember to cast out gently no more than 5’ by hand, scoop or fertilizer spreader from a small dingy or raft.

    For Slow Leaks Apply

    • 3 oz. per 11 sq. ft. applied as follows
    o SF Sealant Part A 1.5 oz. per 11 sq. ft.
    o SF Sealant Part B 1.5 oz. per 11 sq. ft.

    For fast Leaks Apply

    • 3.5 to 4 oz. per 11 sq. ft. applied as follows
    o SF Sealant Part A 1.75 – 2 oz. per 11 sq. ft.
    o SF Sealant Part B 1.75 – 2 oz. per 11 sq. ft.

    Apply Soilfloc® Sealant Part A to approx. 11 sq. ft. section first followed immediately by Part B to the same 11 sq. ft. before moving to the next section.

    If you apply by boat, it is best to use a small watercraft that creates minimal disruption to the water surface. Once you have applied the product to a part of the pond, avoid traveling back through the treated area. Forcefully throw both Parts at the water to ensure they mix with each other. There is a chance some product will float on the surface- it happens! This does not mean something is wrong with your product. The full effects of Soilfloc are seen up to 3 weeks after the application.

    If done correctly, a one-time treatment is all that is needed to seal your waterbody!

    If you are applying at the time of construction, a soil sample should be taken to ensure you have the correct polymer size. Once you are sure you have the correct polymer size, you will till both parts of the product into the soil approximately 4 inches deep throughout the whole bed and sides of the waterbody. You will then want to apply 6-8 inches of clay before it is compacted down. This will give you the best chance of creating a seal in the pond bed.

    When to Apply

    You will want to treat your waterbody when the pond is as full as it can get. The more water, the more pressure that will push the Soifloc downward into the pond’s bed. The leak needs to be under the water line for a full 14 days to ensure success. Ideally, there will be little to no wind and no rain. If it is windy or raining, do NOT apply. The ideal time to treat in a pond’s life is when it has just been constructed or is somewhat new.

    Dense rooted vegetation or an excess of organic matter buildup can hinder Soilfloc’s ability to flow to the leak and bind to the sediment. If your pond struggles from either of these things, additional applications and or application rates may be required. If this is the case, wait until late Fall or early Spring to apply, as the vegetation should die off around these times.

    Benefits of Soilfloc vs. Bentonite and other products

    • Easy to use
    • Much more cost effective vs. bentonite or liners
    • No need to drain the water
    • Material is drawn into leaks and seals
    • No need for big equipment like dozers and excavators
    • Will not harm livestock or your fish
    • Non-toxic, biodegradable and environmentally friendly

    Note:  Ponds with very poor soils and minimal clay may require a geomembrane liner to hold water. Soilfloc is great for sealing small leaks in the dam or bottom area but if a pond won’t hold water and it drains out quickly after a rain, then a liner may be the best option.

    See how Soilfloc can reduce water seepage without draining pond.

    Soilfloc Pond Sealant | Outdoor Water Solutions
    Pond before Application
    Soilfloc Pond Sealant | Outdoor Water Solutions
    Pond after Application

    This is a pond treated in Feb/March 2020. The pond leaked continuously along the dam which covered about 1,000 linear feet and would not hold water in the top 15’. Rick applied 5 units of Soilfloc and was able to reduce the water flow significantly. For application, he waited until the pond was at full capacity, then applied the Soilfloc on the dam side of the pond.

    A Note from the Manufacturer:

    SOME Soilfloc® Sealant part B will float -it doesn’t mean there’s anything wrong or it’s not working. This is especially true if you have a pond with large cracks and crevices and have custom ordered larger sized crystals to seal your leaks. Because they take longer to swell, they may not sink before swelling.

    If you do have floaters, you can collect them, let them dry out and reapply, or you can discard them. Some polymer crystals may remain on the bottom of your pond following application, they eventually become part of the soil matrix and other than feeling squishy on your toes, they won’t hurt you.

    There is NO magic pond sealant and despite the claims of many happy customers, Soilfloc® Sealant is not magic pixie dust. It’s science. Our 40+ year reputation speaks for the success of this product. We’ve had the honor of sealing thousands of leaks for many happy customers. Although not designed to compensate for poor pond construction, even the most renowned pond builders have come to rely on Soilfloc® Sealant to solve their problem when baffled by a leak. As with anything, Soilfloc® Sealant has limitations. We don’t do the application, so don’t warranty the work. We do stand by the product quality and only ship product that meets our strict product specifications.

     

    Additional information

    Weight 110 lbs

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