Why Pond Sealer is Better than a Pond Liner

Professional application of non-toxic pond sealer on a concrete backyard pond

Choosing the right pond sealer is the most important decision you’ll make when contemplating a backyard pond or water fountain, as the lining method determines the long-term success of your project. After all, you cannot simply dig a hole and fill it with water; you need some type of liner to ensure that the water stays in place and that you can create the beautiful pond you have envisioned. There are a variety of options available and choosing the one that is right for you will depend on the type of pond you want to create, your budget and, of course, your own personal preferences.

Liquid Pond Sealer

There are pre-formed pond liners that can be purchased to use as a pond enclosure; however, if you want something that will last for a longer period of time and that will also provide more flexibility, consider using a liquid pond sealer. These pond sealers are simply brushed on and form a waterproof barrier that can be used to create a beautiful pond or water fountain in just about any environment.

Fortunately, a liquid pond sealer can be an easy and affordable solution when you are looking for the best pond liner. This type of pond sealer can be applied to almost any material and will form a barrier that is not only waterproof, but flexible and durable. These benefits will certainly help to ensure that your pond looks great and remains intact for many years. Additionally, the liquid sealer used to create this barrier is completely safe for plants and fish, which makes it an excellent choice for any water pond or fountain.

Pre-Formed Pond Liners

The use of a pond sealer is certainly an effective way to line any type of pond; however, there are some people who prefer to use an alternative method. For example, you can purchase a pre-made form that can simply be placed in the ground and is ready for you to fill. These pre-made molds are available in numerous sizes and shapes and can be an excellent pond liner alternative for anyone who does not want to go through the trouble of applying a liquid pond sealer to the surfaces of their backyard pond. Another excellent solution would be to use a special pond liner that is designed to be used in a pond. These liners are similar to a sheet of plastic and are applied to the surface of the pond prior to filling. They can provide a waterproof barrier that is as simple as lying down a sheet of special film designed for this purpose. This method has the added benefit of being extremely affordable.

Liquid Pond Liners Are Better Solution Than Pre-Formed Pond Liners

While there are certainly a variety of different solutions that can be used to seal a backyard pond, not all of them are as effective or convenient to use. For example, liners that come in a sheet can be extremely difficult to fit properly into the contours of your pond. Additionally, pre-formed pond liners can limit your design creations and are not as durable as a liquid pond sealer. There are certainly many advantages in choosing a liquid pond sealer over other types of liners. When installing your own backyard pond, seal it with the convenience and durability of a liquid sealer. If you’re looking for a long-lasting solution,  Pond Shield is designed to seal concrete surfaces properly the first time.

Pond Shield Product & Safety FAQ

What surfaces can Pond Shield be applied to?

Pond Shield can be applied to properly prepared concrete, cement, shotcrete, gunnite, brick, block, stone, tile, wood, metals (steel, aluminum, copper, cast iron, brass), fiberglass, PVC/ABS pipe, and some plastics. It can also be applied over certain old coatings, provided the surface is prepared correctly.


Can I coat my rubber or plastic pond liner with Pond Shield?

No. Rubber and polyethylene/polypropylene liners are designed to repel other materials. There is currently no coating that will adhere long-term to these liner materials without a heat-and-pressure vulcanization process.


Is Pond Shield fish and plant safe?

Yes. Once fully cured, Pond Shield is safe for fish and aquatic plants. The cured coating is non-toxic and designed specifically for water containment environments.


How long before I can add water and fish?

In most cases, 24 hours is sufficient. In cooler temperatures, allow an additional 12 hours. Before filling, confirm there are no tacky areas remaining on the surface.


Does Pond Shield have a strong odor?

No. The odor is minimal during application and many customers report that standard latex paint smells stronger.


Is Pond Shield considered a HAZMAT material?

No. Pond Shield is not classified as hazardous material and can be shipped by ground, air, or sea without special handling fees.


Can Pond Shield be applied over old coatings?

Yes — but failing coatings must be removed first. Any remaining bonded coating should be sanded with 60-grit sandpaper to create proper surface tooth. For best results, full removal of old coatings is recommended.


How does Pond Shield compare to rubber pond liners?

Pond Shield provides a permanent, rigid waterproof barrier that will not puncture from roots, rocks, or ground movement. It is competitively priced per square foot and can be applied by homeowners without a specialized installation crew.


Can Pond Shield be used for planters, aquariums, or grow beds?

Yes. Pond Shield works well for garden planters, aquariums (fresh and saltwater), grow beds, bird baths, and other water containment structures.


Can I order Pond Shield in a custom color?

Yes. Solid custom colors can be matched from a paint chip. A minimum order of five 1.5-gallon kits is required for custom color production.

Full Pond Armor FAQ

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