Soilfloc Pond Sealant is a powerful, polymer-based solution that seals leaks in existing or newly built ponds-without the need to drain the water or use heavy equipment. Whether you're dealing with a slow seep or a fast leak, Soilfloc works below the surface to find and seal cracks, crevices, and porous soils.

It’s ideal for applications ranging from backyard koi ponds to multi-acre lakes, stock tanks, and municipal reservoirs. The two-part formula (Part A and Part B) works in tandem: Part A flocculates with suspended sediment, follows water flow to the leak, and expands up to 300x to form a seal. Part B continues to expand and reinforce that seal over time. The treatment can be applied directly to a full pond-just gently cast by hand or spreader during calm weather.

Soilfloc is non-toxic, biodegradable, and safe for livestock, aquatic plants, and marine life, making it a trusted choice for farmers, ranchers, landowners, contractors, and water management professionals. If you're building a new pond, you can till Soilfloc into the soil at construction to proactively prevent leaks. One-time application, lasting results.