GDT Lining : Dam Liners | Pond Liners

Are you looking for reliable, long-lasting lining solutions for your next project? Look no further! GDT Lining is Australia's trusted specialist in geosynthetic products and professional liner installation — delivering quality results across a wide range of industries.

✔ Pond Liners ✔ Dam Liners ✔ Mining Liners ✔ Geosynthetics ✔ Environmental Containment ✔ Water Storage Solutions

With years of hands-on experience, our expert team works closely with farmers, miners, civil contractors, councils, and developers to deliver lining systems that are built tough for Australian conditions. From small farm dams to large-scale industrial containment projects — we handle it all.

Why GDT Lining?

Premium quality materials sourced for durability

Professional installation by experienced technicians

Solutions tailored to your specific project needs

Competitive pricing with no hidden costs

Fast turnaround and reliable project delivery

Fully insured and Australian standards compliant

Servicing Queensland and Australia-wide

Whether it's protecting your water supply, containing waste, or meeting mining compliance requirements — GDT Lining delivers solutions you can count on.

Don't risk leaks, seepage, or costly environmental damage. Let our team assess your site and recommend the best lining solution for your needs.

📞 Call: 07 4061 7770 📧 Email: [email protected] 🌐 Visit: www.gdtlining.com.au

Discover how GDT Lining, one of Australia’s leading geosynthetic specialists, delivers high-quality HDPE dam liner installations for reliable and long-lasting water containment.

Our liners are designed to: ✅ Prevent leakage and seepage ✅ Resist UV and chemical damage ✅ Ensure maximum water retention and protection ✅ Suit applications like farm dams, irrigation ponds, wastewater, and reservoirs

Watch the full project video here 👉 https://www.youtube.com/watch?v=vQGNS21Y--s and see how precision engineering and on-site expertise create durable results.

Building a pond is a great way to enhance the beauty of your outdoor space and create a relaxing and peaceful environment. But a successful pond installation relies heavily on the quality of the pond liner. A good quality pond liner will prevent water seepage and leaks.

In this article, we will discuss the importance of high-quality pond liners and what to look for when selecting the right one for your pond.

Why is a High-Quality Pond Liner Important?

A high-quality pond liner serves as a barrier between the soil and water, preventing water from seeping into the ground or escaping from the pond. A pond with a leaky liner can cause serious problems, such as water loss, soil erosion, and contamination.

A quality pond liner will not only protect your investment but also create a safe environment for aquatic life. If a liner is not suitable for pond use, it can release chemicals into the water that can harm the ecosystem.

What to Look for in a High-Quality Pond Liner

There are many types of pond liners available in the market, but not all are created equal. Here are some of the key factors to consider when selecting a high-quality pond liner:

Durability: A good quality pond liner should be strong and durable enough to withstand harsh weather conditions, UV rays, and punctures from rocks and roots.

Flexibility: A flexible pond liner can easily conform to the shape of your pond, preventing folds and wrinkles that can cause leaks.

Thickness: The thickness of a pond liner determines its durability and ability to resist punctures. Thicker liners are more resistant to punctures and UV degradation.

Warranty: A high-quality pond liner should come with a warranty to ensure your investment is protected.

Types of Pond Liners

There are two main types of pond liners: EPDM and PVC.

EPDM pond liners are made of a synthetic rubber material that is flexible, durable, and UV-resistant. They are a popular choice for large ponds.

PVC pond liners are made of a synthetic plastic material that is also flexible and durable. They are available in various thicknesses and are typically more affordable than EPDM liners.

Conclusion

Selecting a high-quality pond liner is an essential step in building a successful pond installation. Investing in a durable and flexible pond liner will not only protect your investment but also provide a safe environment for aquatic life.

Consider the key factors mentioned in this article when selecting a pond liner, such as durability, flexibility, thickness, and warranty. EPDM and PVC are the two most popular types of pond liners available, and both have their advantages and disadvantages.

A BGM is a composite material with several constituents to attain the desired overall material properties. They typically consist of non-woven geotextile and glass fleece or polyester layers impregnated with and encapsulated in elastomeric bitumen, with a sanded surface on one side for enhanced friction and an anti-root layer on the other. According to geosynthetic specialists, the geotextiles dictate the mechanical properties of the BGM, while the elastomeric bitumen provides waterproofing, chemical resistance, and protection from aging. The glass fleece is used for manufacturing purposes. It ensures the stability of the geomembrane during the impregnation of the geotextile with hot bitumen.

Special care provided by a geosynthetic specialist is required when unloading and storing a BGL. Specially prepared laydown areas are required with special support for the rolls to prevent deformation of the material before the laying process is commenced.

GDT LINING is a leading name of geosynthetic specialist to help clients around Australia deliver and maintain their infrastructure.  We offer top-class geosynthetic products to minimize risks and maximize the value of a project.

With over 32 years of experience, we, the geosynthetic specialist team, have supported the significant projects of lining sectors with utmost sincerity and transparency. For each project, we focus on how to provide smarter lining solutions to our clients.

Our company believes that by using smart products, smart solutions, and smart geosynthetic specialists, we can help our clients develop engineering opportunities for their projects.  It delivers greater opportunities, lower risks, costs, and construction time while increasing maintenance cycles and durability.

Our geosynthetic specialists develop designs with a suite of design software to assist engineers in developing cost-effective solutions to maintain international design standards. Our products suit a range of design scenarios and cover different ground and loading conditions by minimizing the risks of a project.  

Any covering that is wholly or partially impervious and can be used with soils, rocks, or other geotechnical material to stop the seepage of fluids from the area is called geomembrane. It is used either as a barricade, covering, or as limiting evaporation. Dam Liners and pond liners are two very common examples in the lining industry. However, liners have vast applications in commercial and mining industries such as landfill sites, rainwater harvesting, and agriculture. They are typically made from smooth polymer sheets, usually HDPE, PVC, and polypropylene.

To protect farm dams where other methods of sealing do not work optimally, dam liners offer practical services. Dams are made with clay-based soil and sealed with clay-like elements. When ground movement occurs, the use of dam liners becomes immensely necessary.

Farm dams require geomembrane liners and the use is mandatory, especially for mining and commercial applications. Where the seepage of chemical-mixed fluids or untreated water is unacceptable to enter the environment, dam liners are the most essential item to use.

These liners are not only used under the land but can be used as a top cover as well. Covering can prevent both rain and other components from entering the action area. For landfill applications, these are used typically. Material selection is very vital, and it depends on the base and the weather condition.

Leaking dam problems

For farming and in rural and remote areas, dams are a very useful thing. Leaking dams can cause a tremendous loss of valuable natural resources like water. Sometimes, leaky dams are repairable with clay-based material. However, if the soil condition is bad, this solution is temporary. For the true prevention of water loss, using dam liners can be the permanent solution.

Dams that lose water through leakage require unique solutions. The common reasons for leakage are:

Poor soil conditions

Ground movement creates cracks

Abrasion of the dam wall or floor

Invasion from tree roots

Damage from animals

Soil conditions play an important role to determine the life of the dams. Sandy, loamy, or rock soils leak frequently regardless of the sealing object used. So, repairing is budget-friendly but sometimes it becomes more expensive. Another option to protect the dam is to move it to another location where the soil is clay-based. Dam liners are the last option to protect the dams from leakages.

At GDT Lining, there are experts for lining and geomembrane systems. It supplies a broad variety of dam liner solutions to fit your projects. The experts advise what should be the best solution for your project and help you choose the right items.

Benefits and features of GDT dam liners:

They offer the best permanent solutions to stop current and future leakage.

They are made up of high-quality polypropylene and so last for decades. So, purchasing GDT dam liners is a long-term investment and you will get a minimum 10-year warranty or more.

Although we have installation professionals, you can fit them on your own as the installation is very simple.

Customers have a versatile range of liners to suit liquid storage applications in mining industries, agriculture, and more.

These are safe for fish and marine life.

UV stable, decay, and chemical resistant

Flawless shapes and sizes of liners at cost-effective prices.

They are fit for extreme weather conditions.

Dam Liners Material The type and thickness of material in dam liners varies. The main determinants of the type of material to be used are:

size of the dam or pond

exposure to UV

required dam liner life

preparation and nature of the base of the dam

GDT Lining has a mission to improve the industrial landscape by containing any harmful waste. We accept that waste is a product of our industrial society. We aim to mitigate the downside to a level which is acceptable, by limiting the spread and effect of waste materials on everyday life.

We are always eager to work with our mining partners in the extraction of products which benefit the quality of life.

GDT Lining Systems has been in operation for over 20 years. We run a crew of up to 15 technicians and undertake projects with a value of up to $(AUD)6.0mil. GDT is located in rural Queensland in the town of Innisfail, approximately 100km south of Cairns. We service customers throughout Australia and Papua New Guinea. We specialise in remote work.

We undertake:

Design and Construct work.

Supply and install of lining systems.

We work with HDPE, Polypropylene, GCL’s and other geosynthetic products. Our preferred supply partners are:

Solamax www.solmax.com suppliers of HDPE

Cooley Group www.cooleygroup.com suppliers of polypropylene lining systems

The use of geosynthetic liners in mining applications has been established science for 40 years. Specifically, HDPE has been used extensively as the lining medium for Heap Leach Pads and lining of Tailings Dams. Other geosynthetic applications have included Evaporation Ponds for the reduction of liquid waste. The complexity of the lining system for a particular application depends on the nature of the material being stored or treated. When it comes to the need for liner systems for your industrial waste management requirements, we have the experience to provide meaningful advice.

GDT have designed and constructed many floating covers over; water, molasses, Dunder (Vinasse) and wastewater. We have had extensive experience with gas collection covers.

GDT Lining Systems can design, and construct liner based civil projects in a practical, easy to construct manner. We employ professional engineers experienced in civil and structural design.

GDT has designed and constructed many in-ground molasses storages throughout Queensland in the last 25 years. The largest of which has the capacity to hold up to 37,000 tonnes of molasses. The excavation for this molasses storage is approximately 140m long, 140m wide and 11m deep. As a result of GDT’s experience with Molasses Storages construction, they have become specialised in the requirements to make such a project successful.

For farming and agricultural purpose, dams are highly useful. In rural and remote areas, dams are the major source of water. A leakage dam means a huge wastage of valuable resources. In some cases, clay or polymer-based materials are used to seal leakage dams but, this is not the permanent solution. A permanent solution preventing water loss is the dam liners.

When you have decided to invest money in repairing your dam or pond, there are numerous things you should focus on. The most important aspect is to determine how long you are going to use the dam and what kind of water body it is.

Dams usually lose water through evaporation and seepage though the reasons may vary. Water loss through evaporation can be solved at the manufacturing stage. Making them deep and shaded can lessen the water loss issue through evaporation.

Water bodies lose water through leakage may need several solutions. The reasons for leakage may be different. Some common causes include:

Poor quality or clay-based soil

Ground movements form cracks

Dam wall erosion

Poor soil conditions, clay-based soils being the best blocking seepage.

Ground movement forming cracks

Erosion of the dam wall or floor

Damaging from tree roots

Damage from living beings

To solve water seepage problems, there are several methods to apply. Some include:

Add a sealant to seal the crack

To clean up the pond and compress fresh soil

To reconstruct the pond in a new location

To use some permanent barrier like dam liners

It depends on the soil condition that which procedure will fit good to solve the problem.For sandy or rocky soil, leakage is obvious regardless of the sealing methods and materials. Initially, this process seems cheap but, it will become quite costly later. Changing the location is much more expensive. So, the permanent solution is to install a dam liner.

Benefits of installing Dam Liners Dam liners seem costlier than some other methods but, they do offer numerous benefits:

It is the finest and long-lasting solution to stop leaks and prevent future seepage

It is a worthy long-term investment

Installation is easy and you can install at your own by simple tips

Available in a versatile range of shapes, sizes, and quality

They can fit for all kind of liquid storage applications

Provides increased safety to marine life

Available in customized forms

As it is a long term investment, you must look for high-quality liners to protect the most valuable natural resource. You may have cheaper products or a long warranty from some companies. But always judge whether your decision is true or not. Consider a few features of HDPE liners before you buy them:

Chemical-free and safe material

Made up of UV resistant and rot-resistant materials

Sizes and shapes are diverse and suitable for any project

Waterproof material

Environment-friendly

Highly durable

If you are interested in marine life, it will give you immense relaxation when you make a beautiful pond. People find it exciting to make attractive pools inside their house. But before the project starts, you have a lot of things to sort out and the first thing is to determine pond liners.

What Is Pond Liners?

Pond liners are the base when you building your pond. They are secure and impervious geomembrane, used for protecting ponds. They stop water from sopping into the soil. They also work as a fence for plants and wild plants growing around the boundaries. They ensure a crystal clear pond without weeds.

Is it the best fit?

Before installing it, you need to consider some factors. The first thing is to determine the size of the pond. It enables you to choose the right form of liners, fit for the area. In the market, large as well as small geomembrane liners are available. Even you have small-sized one as per the size of your pool. You have to choose one that fits the size, shape, and depth of your lake.

Consider the base of the dam

Measuring the depth is as necessary as useful for your dam lining projects. Even the lining material is determined according to the deepness of the pond. The base should not be sharp and rocky. Before fitting the dam liner, you should make the base smooth and free from rocks. So, you need some experts for your venture.

The durability of the dam liners

A pond is not a thing to enjoy for of few hours but it should offer lifetime benefits. Ensure that the liner you choose is durable enough. The thickness of the liner is a vital issue to consider. It depends on the material. It is not like that the thicker liner you choose offers the best result. How thick the liner should be is determined by the type of the project. And you must depend on experts for this. You must ask for the life of the product for a trouble-free going.

Toxic or non-toxic

You should remember this point when looking for pond liners. Plants and animals, habituated in the pool should not be affected by harmful chemicals or toxic elements. So, you should try products that are safe for aquatic life. Marine lives should be damaged with the use of the dam liner. Ask the retailer and get the details of the product. See what kind of materials is used to make it. Whether these are toxic and can harm animals or safe for them. Talking to the supplier can be a perfect help.

Budget

Certainly, you have a fixed budget for your project. And no one wants that the budget exceeds unnecessarily. So, when you are in a dam lining project, first spend some time to take a consultation from experts. Let them know the size, depth, width, budget, and everything before you start. Many retailers provide products at reasonable and market-oriented rates. Even you will have the premium-quality items with them.

When you consider all these points carefully, you will have a great experience with your pond lining project.

HDPE refers to high-density polyethylene and it is a widely used material in the pond lining industry. For its availability and inexpensive features, it is most popular among the users. This product is excellent for large applications as it is UV-resistant, chemical resistant, and pollution-resistant. Water and waste management industries use this product more efficiently. While weather factors such as temperature and humidity are the key issues for pipeline corrosion, HDPE stands strong amongst others with its extraordinary attributes. This kind of lining material is less affected by the change of the weather and so, it guarantees a long-term and hassle-free service. Industrial and domestic lining problems can easily be handled by installing HDPE liners.

Its extensible strength makes it more functional than other polyethylene substances. It is durable, solid, and strong and can easily survive in the high-temperature area. The product is loaded with carbon and hydrogen.

What is the secret of its long-lasting nature?

HDPE liners are very durable and last for a long period. It is because of its highly advanced technology. PI or Process Intensification is the manufacturing technology of this product. PI technology increases the reaction rate and it lessens energy consumption. These features are excellent in minimizing the misuse of energy and costs. HDPE liners are climate and weather-resistant as they are made by PI technology.

Diverse applications

1.Fire Hydrant Pond - Use of HDPE Geomembrane is huge in the field of Fire Ponds. It makes an obstacle and prevents water leakage from ponds whether small or large.

2.Reservoirs - No matter how big or small, easy or complex the manufacturing is, HDPE liners are the best suit for any reservoir to stop oozing of water.

3.Ash Dyke - It has a lesser propensity to exchange ions with leachate elements and maintains its optimal feature as a barricade and prevents the subterranean water pollution.

4.Hazardous Solid Waste Landfill - The role of the HDPE lining system is to check the passage of leachate to the soil. This is done by placing a barricade layer at the bottom of the waste landfill. It can be a single layer or layers of clay or synthetic materials.

5.Waste Water Treatment - One accepted way of treating wastewater is to store it in evaporation ponds or storage ponds. The aim is to get rid of any seepage outside the water bodies.

6.Tank Lining - It is a useful compression membrane used in tanks to hold a large variety of fluid like water, wastewater, treated slush, fuels, gasoline, etc.

7.Other Application - other applications of HDPE lining include floor lining, roads, pond lining, etc.