Product Description
LLDPE Geomembrane Liner is a kind of liner low-density polyethylene (LLDPE) geomembrane manufactured with the highest quality resin specifically formulated for flexible geomembranes. It is manufactured via triple co-extrusion technique by the most advanced automatic equipment which is imported from Italy.
Yingfan lldpe geomembranes all meet or exceed US GRI GM17 and ASTM standards. Its main function is anti-seepage and isolation. It is designed to be used when higher elongation properties are required. It is similar to HDPE geomembrane, but is lower in density, thus being more flexible.
LLDPE Geomembrane
LLDPE Geomembrane Liner
If you require increased frictional performance, flexibility and elongation, our LLDPE textured geomembranes are the best product choice. Our superior textured surface allows for increased friction between the two layers and the design of steeper slopes in many environmental and civil engineering.
Yingfan lldpe geomembranes are widely used in landfill, water consrevancy, minging&chemical industry, construction, aquaculture, agriculture etc.
Feature and Advantages of LLDPE Geomembrane Liner
♦ Excellent flexible and elongation properties
The break elongation of LLDPE geomembrane is better than HDPE geomembrane, which proves that its flexibility in the practical application of landfill capping is better than that of HDPE.
♦ High waterproof property:
It's permeability property test value is ≤1.0*10-13g●cm/(cm2●s●pa),test method ASTM E96.
♦ Good anti-aging property
LLDPE geomembrane has high anti-aging, anti-ultraviolet, anti-decomposition capabilities. Oven aging at 85℃, standard OIT, 35% retained after 90 days, oven aging at 85℃,high pressure OIT, 60% retained after 90 days.
♦ High tensile strength
LLDPE geomembrane has high tensile strength, all meet GRI-GM17 standard.
♦ Economy
LLDPE geomembrane has obvious economical advantages compared with other traditional materials.
Types of LLDPE Geomembrane Liners
Generally Speaking, Yingfan LLDPE geomembranes have two types, one is smooth LLDPE geomembrane, another is textured LLDPE geomembrane according to the surface of LLDPE geomembrane.
Textured LLDPE geomembrane also can be divided into two types, one is both sides textured, another is one side textured one side smooth. Textured LLDPE geomembrane has better frictional performance.
LLDPE Geomembrane Specifications
Shanghai Yingfan is a professional manufacturer specialized in R&D, produce, sales and installation of LLDPE geomembrane. Our company has three vertical blow geomembrane production lines for smooth LLDPE geomembrane and one automatic secondary textured production line for textured LLDPE geomembrane. We also have a new flat extrusion geomembrane production line and another new automatic secondary textured production line, that will start production at the end of 2020.
We can supply complete specifications to meet different requirements of our customers.
Thickness range is from 0.20mm to 3.0mm,usually 0.50mm,0.75mm,1.0mm,1.5mm,2.0mm,and can be customized;
Surface can be smooth, textured, or one side textured;
Width range is from 1m to 8m,usually 5.8m,6m,7m,8m,and can be customized.
Length range is from 50m to 200m,usually 50m,100m,150m,200m,and can be customized.
Color can be black, green, blue, black-green, usually black color, and can be customized.
Applications
LLDPE geomembrane of Shanghai Yingfan company, also called liner low-density polyethylene geomembrane, has excellent waterproof, chemical stability, flexible and elongation properties.
Yingfan lldpe geomembranes are mainly used in environmental friendly projects(such as landfill site, sewage treatment etc.), water conservancy projects(such as anti-seepage and reinforcement of river or dam etc.), artifical landscape (such as artifical lake, golf course pond etc.), construction(such as underground waterproof, tunnel etc.), agriculture(inrigation system,water pond etc.), aquaculture(such as fish farming or shrimp farming) etc.
Production Process
At present, there are two manufacturing techniques, one is triple co-extrusion vertical blow technique, another is flat extrusion technique.
Shanghai Yingfan is a professional manufacturer specialized in R&D, produce, sales and installation of LLDPE geomembrane. Our company has three vertical blow geomembrane production lines for smooth LLDPE geomembrane and one automatic secondary textured production line for textured LLDPE geomembrane. We also have a new flat extrusion geomembrane production line and another new automatic secondary textured production line, that will start production at the end of 2020.
The production process of Yingfan LLDPE geomembrane of vertical blow technique are as follows: firstly mix two materials, LLDPE resin and anti-agent;then all materials enter the extruder, and form the LLDPE geomembrane after being extruded and blown by the extruder; then cooling, LLDPE geomembrane is packaged in rolls and woven bag outside.
Yingfan: Your Professional HDPE Geomembrane Sheet Manufacturer
Focus On LLDPE Geomembrane Products manufacturing
We have Four world-class LLDPE geomembrane production lines, and Two textured LLDPE geomembrane production line.
Over 10 Years Manufacturing Experience
we have been in the business for over ten years and have a good reputation on the market. We, Shanghai Yingfan, not only produce LLDPE geomembrane products, we also have our own professional installation team, so we can supply overseas on-site installation services if you need.
Have Multiple Quality Control Processes
Shanghai Yingfan is the professional manufacturer of LLDPE geomembrane in shanghai,China, we are one of the member units of CTAG. High quality is one of the most important factors that have secured our position on the market.
All the LLDPE geomembrane products meet or exceed GRI-GM17 standard.
Product have certificated by ISO9001, ISO14001, OHSAS18001 and CE.
LLDPE Geomembrane Liner Buying Guide
Which thickness lldpe geomembrane should I use ?
Different thicknesses of LLDPE geomembranes are suitable for different application fields.Our company can produce LLDPE geomembrane from 0.25mm to 3.0mm, uaually 0.5mm, 0.75mm, 1.0mm, 1.5mm and 2.0mm, other thickness can be customized. We,Shanghai Yingfan,are professional producer of LLDPE geomembrane in China.According to our experience,1.0mm thickness LLDPE geomembrane is widely used in landfill capping, artifical lake, dam etc. Please don't hesitate to contact me if you have any inquiry, and we will give you professional advice.
How much does lldpe geomembrane cost?
LLDPE geomembrane is one of the most famous geomaterials, it's widely used in environmental friendly projects due to its excellent anti-seepage and chemical stability properties. LLDPE geomembrane has obvious low cost advantages, its price depends on thickness, smooth or textured, color, quantity and discharge port etc. The larger thickness, he higher price. The price of smooth LLDPE geomembrane is cheaper than that of textured LLDPE geomembrane. Ordinary color of LLDPE geomembrane is black, other colors can be customized, but higher price. The larger quantity, the lower price. Shanghai Yingfan is a professional producer of LLDPE geomembrane, so if you have an inquiry, please don't hesitate to let me know.
Our usual payment terms as follows:
| No. |
Term |
Payment term |
| 1 |
FOB |
30% T/T prepaid,the rest 70% T/T before shipping from factory; or 100% irrevocable L/C at sight |
| 2 |
CFR/CIF |
30% T/T prepaid,the rest 70% T/T aganist the copy of B/L; |
Other terms also can be negotiated.
What's your delivery time?
Delivery time is usually within 7 days after receive your downpayment based on one 40ft full container LLDPE geomembrane. For larger order, we need to negotiate.
What is your usual packaging and shipping?
About packaging: Yingfan LLDPE geomembrane products are packaged in rolls, with woven bag outside, package also can be customized.
About shipping: Yingfan LLDPE geomembrane products are usually shipped by sea from Shanghai port, or other customized port in China. The width is usually 5.7meters or 5.8meters for 20ft container and 7m or 8m for 40ft container. For small samples, they can be shipped by sea, by air or express way.
How long is your quality guarantee time?
Quality guarantee time of Yingfan LLDPE geomembrane is ONE YEAR. Our company is initiated in 2009 in Shanghai,China. We have been in the business for more than ten years and have a good reputation on the market. We also have test reports from third party, we can provide them to you if you need. Properties of LLDPE geomembrane all meet or exceed GRI GM17 standard. High quality is one of the most factors that have secured our position on the market. You can be entirely assured of our product quality.
LLDPE Geomembrane:The Ultimate FAQ Guide
What is Lldpe Geomembrane ?
LLDPE geomembrane is a kind of liner low-density polyethylene (LLDPE) geomembrane manufactured with the highest quality resin specifically formulated for flexible geomembranes. It is designed to be used when higher elongation properties are required. It is similar to HDPE geomembrane, but is lower in density, thus being more flexible.
If you require increased frictional performance, flexibility and elongation, our LLDPE textured geomembranes are the best product choice. Our superior textured surface allows for increased friction between the two layers and the design of steeper slopes in many environmental and civil engineering.
How to installation LLDPE Geomembrane?
Shanghai Yingfan is the professional manufacturer specialized in R&D,produce,sales and installation of LLDPE geomembrane. We not only sell LLDPE geomembrane all over the world, but also provide overseas on-site installation service if you need.
The processes of install LLDPE geomembrane are as follows:
a. Laying LLDPE geomembrane,the laying base should be solid and flat.
b. Hot Welding: using welding machines, including plastic welding automatic wedge welder, plastic welding hand extrusion welder, and plastic welding hot air welding gun. The overlap of two pieces LLDPE geomembrane is about 10 cm. Adjusting the pressure,temperature and speed, then you can start.
How to Repair LLDPE Geomembrane ?
As we all know, LLDPE geomembrane is famous for its anti-seepage property, so when the LLDPE geomembrane is punctured or damaged by sharp objects or others, we need to repair it. If the damaged part is small, just clean the damaged part and its surroundings, and then use plastic welding hand extrusion welder to repair. If the damaged part is larger, you need to clean up the damaged part, measure the area of the damaged part, and then cut the repair material into a circular or oval shape (the area is about three times of the damaged part) covered on the damaged part to repair, generally using plastic welding hot air welding gun and plastic welding hand extrusion welder.
Shanghai Yingfan is the professional manufacturer specialized in R&D,produce,sales and installation of LLDPE geomembrane. We not only sell LLDPE geomembrane all over the world, but also provide overseas on-site installation service if you need.
How Long Does LLDPE Geomembrane Last ?
LLDPE geomembrane is a kind of liner low-density polyethylene (LLDPE) geomembrane, which is mainly used in waterproof and anti-leakage fields. The service life of the LLDPE geomembrane is related to product quality, specification, using method and using environment. Yingfan LLDPE geomembrane is made of high-quality low-density polyethylene with anti-aging agent added. If used in the dark, the service life can reach at least 50 years.
What Thickness LLDPE Geomembrane is Best?
Different thicknesses of LLDPE geomembranes are suitable for different application fields. Our company can produce LLDPE geomembrane from 0.25mm to 3.0mm, uaually 0.5mm, 0.75mm, 1.0mm, 1.5mm and 2.0mm, other thickness can be customized. The larger thickness, the better property, then the longer life service, and the higher price at the same time. So it is really difficult to say which thickness of LLDPE geomembrane is the best. There is no best, only the most suitable one.
We,Shanghai Yingfan,are professional producer of LLDPE geomembrane in China. Please don't hesitate to contact me if you have any inquiry, and we will give you professional advice.
HDPE vs LLDPE Geomembrane?
HDPE Geomembrane is high density polyethylene geomembrane,LLDPE geomembrane is liner low density polyethylene geomembrane.
According to the water vapor permeability test of ASTM E96, the permeability coefficients of HDPE and LLDPE are both less than 1.0*10-13g*cm (cm2*s*Pa). Therefore, both HDPE and LLDPE have excellent anti-seepage properties, they are both widely used in environmental friendly projects.
At the same time, thanks to the characteristics of polyethylene, both HDPE and LLDPE have good chemical resistance, and both can directly contact the toxic leachate in the landfill.
The properties differences between HDPE geomembrane and LLDPE geomembrane are as follows:
| Properties |
Test Method |
Test Value-GM13 1.0mmHDPE geomembrane |
Test Value-GM17 1.0mmLLDPE geomembrane |
| Tensile properties- Break elongation |
ASTM D6693 |
700% |
800% |
| Puncutre Resistance |
ASTM D4833 |
320N |
250N |
| Tear resistance |
ASTM D1004 |
125N |
100N |
| Oven aging at 85℃- Standard OIT(min.ave.)-% retained after 90 days |
ASTM D3895 |
55% |
35% |
| UV resistance- Standard OIT (min.ave.)-% |
ASTM D3895 |
50% |
35% |
The break elongation of LLDPE is higher than that of HDPE, which proves that its flexibility in the practical application of landfill capping is better than that of HDPE, and it is more adaptable to uneven settlement in the landfill than HDPE. In terms of design and application, it is also safer.
The stress crack resistance of LLDPE geomembrane is better than HDPE geomembrane, because LLDPE geomembrane has lower density and better flexibility, so there will be no environmental stress cracking resistance problem. For this reason, in the standard of GRI GM17 of LLDPE geomembrane, the indicator of stress cracking resistance is not even included in the indicator category.
In other properties, such as puncutre resistance, tear resistance, oven aging and UV resistance, HDPE geomembrane is better than LLDPE geomembrane.