How to Apply Mortar Over a Pond Liner (What Steps I Followed)

So, you’ve decided to give your backyard pond a makeover. Maybe it’s to repair cracks, enhance its aesthetics, or simply strengthen its structure. Whatever your reason, applying mortar over a pond liner is a smart move. 

Pond liners are a great way to create a water feature in your garden, but they can be unsightly and even dangerous if left exposed. Mortar can be used to cover the liner and create a more natural and aesthetically pleasing look. It can also help to protect the liner from damage caused by UV rays, weather, and animals.

Steps for Applying Mortar Over and the Edge of a Pond Liner

Materials You Will Need

Before we jump into the exciting world of pond liner mortar application, let’s make sure you have all the necessary materials at your disposal. Here’s a checklist to ensure you’re well-prepared –

• Mortar mix
• Water
• Mixing bucket
• Trowel
• Brush
• Sponge
• Gloves
• Eye protection
• Dust mask
• Stones or rocks for edging 

Now that you’ve gathered your materials, let’s get our hands dirty with the step-by-step process of applying mortar over a pond liner

Step 1 Clean the Pond Liner

Start by thoroughly cleaning the pond liner. To clean a pond liner thoroughly:

1. Start by brushing the liner with soapy water to remove any dirt, debris, or algae. Be sure to brush all areas of the liner, including the bottom and sides.
2. Once you have brushed the entire liner, rinse it thoroughly with water. You can use a hose or a bucket of water to rinse the liner.
3. If the liner is still dirty, you may need to repeat steps 1 and 2.

Step 2 Prepare the Mortar

Now, it’s time to prepare the mortar. For pond liner mortar, it’s better to use plastic cement. Use three parts of sand, and one part of cement, and add water until it forms into a paste with a thickness of mud. 

Step 3 Apply a Thin Layer

Using your trowel, apply a thin layer of mortar over the pond liner’s surface. This is known as the scratch coat, and it provides a textured base for the next layer to adhere to.

Step 4 Add the Reinforcing Mesh (Optional)

If you’re looking for extra strength, lay down a reinforcing mesh over the scratch coat while it’s still wet.

Step 5 Apply the Final Coat

Once the scratch coat has set (but is not completely dry), apply a thicker layer of mortar. Smooth it out to your desired finish. If you’re going for a decorative look, consider using a stamp or texture roller.

Step 6 Cure the Mortar

Cover the newly applied mortar with a wet burlap or plastic sheet to prevent it from drying out too quickly. This curing process helps the mortar achieve maximum strength.

Alternatives to Mortar Application Over a Pond Liner

Mortar might be the go-to choice for many pond enthusiasts, but it’s not the only option. Here are some alternatives to consider –

Stone or Rock Edging 

You can use stones or rocks to create a natural-looking edge around the pond. Simply place the stones or rocks on top of the liner and secure them with stakes or wire.

Rubber Edging

Rubber edging is a pre-formed edging material that can be used to create a neat and tidy finish around the pond. To install rubber edging, simply attach it to the liner with screws or staples.

Pond Liner Adhesive

Pond liner adhesive can be used to secure the liner to the ground and prevent it from moving. To apply pond liner adhesive, simply spread it on the ground and then press the liner into place.

Final Thoughts

Reviving your pond by applying mortar over the liner is a rewarding project that can enhance both its functionality and appearance. With the right materials and careful execution, your pond will be the envy of the neighborhood. Remember to follow safety precautions and enjoy the transformation process. Your aquatic haven is just a few mortar layers away!