Liquid Rubber NeoPond Sealant

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Flexible Heavy-Duty Coating

  • Maintain Your Home’s Most Elegant Feature

    A beautiful pond can be the centerpiece of your home. It adds a level of elegance, adventure, and intrigue that can’t be gained from any other property feature.

    Unfortunately, all it takes is a single leak to turn that tasteful centerpiece into a barren, unfruitful eyesore. By offering unmatched protection against leaks, Liquid Rubber’s NeoPond Sealant will ensure your pond remains a source of joy and beauty for years to come.

    This Easy-to-Apply Waterproof Membrane Preserves Your Home’s Character

    A pond is often a pronounced aspect of your home’s character. It can add life to a front garden, and it can turn an empty yard into a miniature ecosystem full of nature. That’s why Liquid Rubber is dedicated to maintaining the integrity of your pond.

    With NeoPond Sealant, you’ll receive a fully submersible, fish- and plant-safe waterproofing membrane that protects your pond from the devastating leaks that can rob your home of such elegance.

    And no expert is required when using Liquid Rubber’s NeoPond Sealant. Specially-designed to be applied like a paint, this sealant adds unrivaled protection to your pond in a few simple steps.

    Provides Safety for Your Family, Pets, and More

    Just like quality, safety is paramount to Liquid Rubber. It’s our mission to deliver durable, high-performance products that never lose sight of the fact that the safety of your loved ones is most important.

    Our NeoPond Sealant is no exception. Containing no solvents and ultra-low VOCs, this water-based sealant provides uncompromising safety when it comes to your family, your pets, and the environment.

    With Liquid Rubber’s NeoPond Sealant, you don’t have to sacrifice quality, safety, or appearance when it comes to preserving the centerpiece of your home.

  • USED FOR: Waterproofing area’s to be submerged or in frequent ponding area’s. Common applications include ponds and water features
  • See DIY APPLICATIONS for more specific info
  • EASY TO APPLY - Basically just like painting except you use heavy coats to build up your waterproof membrane. Open the container and start using. You can close the container and use later if you have left over material. No pot life or working time like 2 component products. Apply by Brush, Roller or Good Quality Paint Sprayer
  • HIGHLY FLEXIBLE - UV Stable - Easier to apply and requires less product than competitive products to achieve a fully submersible, fish and plant safe, waterproofing membrane
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With LIQUID RUBBER SEAM TAPE or LIQUID RUBBER GEO-TEXTILE where possible movement may occur.




  • Flat/Ponding Surface

    Apply minimum final thickness of 1 gallon per 40 sq ft (3.7 sq/m). It should require around 3-4 heavy coats to achieve a 30 mil. (0.75 mm) (DFT) membrane.  200 sq ft per 5G pail.




  • Apply using a 3/8 (10mm) roller, brush or paint sprayer.
  • Apply to dry surface that is free of dirt, loose paint, rust, oil, grease, coal tar, silicone, or other contaminants.
  • Apply above 10C/50F and rising.
  • For extra adhesion, performance and longevity and to create a moisture vapor barrier, use 1 heavy coat of Liquid Rubber Multi-Purpose Primer or Liquid Rubber EPDM Primer.
  • Apply each coat in an alternate direction to the last coat to ensure even coverage.
  • Apply next coat when dry to the touch with nothing wet underneath and is uniform in color (typically 4-6 hours).
  • Typically cures in 72 hours (3-5 days after last coat before filling/use).
  • Avoid applying in direct, intense sunlight.
  • Do not allow to freeze until fully cured.
  • Do not apply in wet conditions (including fog and dew) or if rain is forecast within 24 hours.
  • Avoid contact with solvents and solvent based cleaners, adhesives and paints.
  • Do not combine black products with colored products.
  • Make sure that what you are coating is at least 5 degrees above the dew point of the environment that you are coating in (see technical specs for more details).
  • For best results remove existing paints/coatings and apply directly to the substrate. (some paints and coatings will not be compatible. Loose/flaky paint may be an indication that the existing paint/coating is not well bonded and therefore your Liquid Rubber solution may fail if applied over it instead of directly to the substrate. Oil based paints, enamels, epoxies, powder coats can be difficult to bond to. Contact your Liquid Rubber technical representative for further direction.)
  • It is always a good idea to apply a small test patch in an inconspicuous area to ensure adequate adhesion prior to full application.
  • Apply all material until you use up the required amount.
  • Do not combine other products or top coat.
  • Etch concrete prior to application.
  • Use Liquid Rubber Deck Cleaner on Wood.
  • Use Liquid Rubber EPDM Primer for EPDM pond liner. 
  • Curing time depends on temperature, humidity and airflow.
  • Reinforce seams, joints, cracks... with Geo-Textile or Seam Tape.
  • Be sure to test the water for proper PH levels acceptable for your type of fish and adjust as necessary.
  • Be sure to cycle the water to remove surfactants before adding fish.




Data Sheets



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Customer Reviews

Based on 19 reviews
Michael Stewart
Too Soon to Tell

The primer, tape & 10 coats of sealant went on w/o a hitch, but waiting to see how it holds up. First customer service agent gave me a valuable tip re etching before primer.

Connie Miller
Works great !

Just follow your directions and curing times,give the old liner and new to seal and fix holes that may have happen during the winter months ! Made just for your Koi pond ,fair price and they ship out fast ,most of all fish friendly just allow the the full drying and curing times !

David Guentert
Just applied

Traveled way farther than expected even with heavy coats. Building a concrete koi pond and I rolled it super heavy twice and then did two heavy stay coats. I may have enough to put one more final as well.

Rita Chambers
Easy to apply

I had a seam failure in EDPM liner and had limited success with other products I now have Koi back in pond and am happy to say water level is holding! Only time will tell, I only wish I would have used this product line on first installment, when liner was free of pond crust.

anthony fantasia

Applied 6 coats and waiting 72 house before putting water in the pond


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