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40 mil HDPE Geomembrane Pond Liner
1. Excellent waterproofing performance. With a thickness of 40 mil, it can form a tight barrier layer, effectively preventing water leakage from the pond and the infiltration of external pollutants.
2. Strong resistance to weathering and damage, capable of withstanding ultraviolet radiation and daily friction, suitable for various climates, and extending the service life of the pond liner;
3. Excellent flexibility, easy to fit the irregular terrain of the pond, convenient for construction and able to adapt to slight subsidence, reducing laying losses;
4. High cost-performance ratio, balancing the basic waterproofing requirements and cost control. No frequent maintenance is required in daily use, reducing the operating cost of the pond.
ONE: Overview of 40 Mil HDPE Geomembrane
A 40 mil HDPE geomembrane pond liner is a flexible, durable sheet made from high-density polyethylene, with a thickness of about 1.016 mm (since 1 mil = 0.0254 mm). It’s designed mainly for pond waterproofing, blending good strength and easy installation. Unlike thinner liners, it resists tears and punctures better, while being lighter than thicker options. This balance makes it popular for both residential and commercial ponds worldwide, as it keeps water in and stops outside contaminants from getting in.
TWO: Physical Performance Indicators of 40 Mil HDPE Geomembrane
Performance Indicator | Unit | Specification |
Thickness | mm | 1.016 |
Density | g/cm³ | ≥0.94 |
Tensile Strength at Break | kN/m | ≥27 |
Elongation at Break | % | ≥700 |
Tear Resistance | N | ≥125 |
Puncture Resistance | N | ≥320 |
Carbon Black Content | % | 2.0 - 3.0 |
THREE: Chemical Performance Indicators of 40 Mil HDPE Geomembrane
Performance Indicator | Performance |
Acid Resistance | No damage after 30 days in 10% sulfuric acid |
Alkali Resistance | Stable in 20% sodium hydroxide solution for 30 days |
UV Resistance | Retains ≥80% strength after 1600h UV exposure |
Oxidation Resistance | Oxidative induction time ≥100min |
Hydrocarbon Resistance | No swelling or cracking in contact with diesel |
FOUR: Global Price Influencing Factors of 40 Mil HDPE Geomembrane
First, raw material costs matter a lot—since HDPE is made from petroleum, global oil price changes directly push prices up or down.
Second, production technology affects costs too; factories with advanced extrusion machines can make liners more efficiently, cutting prices a bit.
Third, transportation fees add to the final cost, especially for long-distance shipping to remote areas.
Fourth, order quantity plays a role: big orders (like over 10,000 square meters) usually get discounts, while small batches cost more per square meter.
Finally, regional regulations can increase costs—some countries require extra testing or certifications, which add expenses that get passed to buyers.
FIVE: Applications of 40 Mil HDPE Geomembrane
1.Residential Ponds: Lines backyard fish ponds or garden ponds to stop water seeping into the soil, keeping water levels stable.
2.Agricultural Irrigation Ponds: Helps store irrigation water, reducing loss and ensuring enough water for crops in dry seasons.
3.Industrial Wastewater Ponds: Prevents harmful chemicals in wastewater from leaking into groundwater, meeting environmental rules.
4.Mining Tailings Ponds: Acts as a barrier to stop toxic tailings from contaminating nearby soil and water sources.
5.Landfill Leachate Ponds: Contains leachate (dirty water from landfills) so it can be treated properly instead of spreading.
6.Recreational Ponds: Lines ponds in parks or resorts, keeping water clean and safe for activities like boating or swimming.
SIX: Haoyang Environment’s 40 Mil HDPE Geomembrane Projects
First, Haoyang supplied 40 mil liners for a residential community pond in China—covering 5,000 square meters, the liner stopped leaks and kept the pond’s water clear for over 3 years.
Second, in Australia, they provided liners for an agricultural irrigation pond: the 40 mil thickness handled heavy rain and farm equipment, helping the farm save 30% on water costs.
Third, Haoyang worked on a small industrial wastewater pond in Southeast Asia—their liners met local environmental standards, preventing chemical leaks and getting positive feedback from the factory.
SEVEN: Market Shortcomings and Future Trends of 40 Mil HDPE Geomembrane
Right now, the 40 mil liner has some shortcomings. For one, it’s not as strong as thicker liners, so it’s not good for ponds with sharp rocks or heavy traffic. Also, some cheap, low-quality versions on the market break easily, making buyers wary. Plus, installation needs skill—if it’s laid wrong, it can leak, which adds extra costs.
But the future looks good: first, manufacturers are adding more UV protectants to make the liner last longer. Second, they’re making it easier to install, so even beginners can use it. Finally, as more people care about water conservation, demand for these liners will grow, especially in dry areas.
EIGHT: Haoyang Environment’s Advantages in Production and Sales
Haoyang Environment has two big advantages in making and selling 40 mil HDPE liners. For production, they use advanced machines that make liners evenly thick—this means the liners don’t tear easily and last longer. They also test every batch to make sure it meets standards, so buyers get reliable products. For sales, their team helps customers choose the right size and gives tips on installation. They also offer after-sales support—if there’s a problem, they respond quickly. These things make Haoyang a trusted choice for both small and big buyers.
