Concrete protective lining is a protective sheet made of high molecular weight polyethylene (HDPE, UHMW-PE) or modified polyolefin materials. It is manufactured using a one-time extrusion molding process and is bonded to concrete through mechanical anchoring, welding or embedding to form a durable and stable protective layer. It is mainly used for long-term corrosion protection, seepage prevention and wear resistance protection of concrete structure surfaces, and is widely used in engineering structures such as sewage treatment plants, chemical storage tanks, sedimentation tanks, tunnels, and water channels that are in long-term contact with corrosive media.
Concrete protective liners are concrete substrate protection materials made using the excellent chemical stability, flexibility, sealing and impermeability, and wear-resistant self-lubricating properties of HDPE. They form a composite structure with concrete, combining “HDPE flexible protection + concrete rigid load-bearing,” compensating for the shortcomings of concrete such as porosity, susceptibility to corrosion and leakage, and high roughness. They possess properties such as waterproofing, corrosion resistance, crack prevention, impermeability, and wear resistance. HDPE offers advantages in terms of resistance to strong chemical corrosion, low-temperature toughness, ease of construction, and cost-effectiveness, making it a mainstream concrete protection solution for municipal water supply/drainage, water conservancy, industrial corrosion protection, and concrete pools/silos/culverts.
Our products are available in a variety of standard specifications and can be customized in many ways to meet your specific requirements.
◆Based on the anchor height, they are divided into: Type A: Anchor height 13mm; Type B: Anchor height 19mm
◆ Colors include white, yellow, black, blue, and gray. Type A can also be customized upon request (H: Anchor height; D: Plate thickness).
| Specifications and Models | A1.5 | A2.0 | A2.5 | A3.0 | A4.0 | A5.0 | A6.0 |
| H(mm) | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| D(mm) | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 | 6.0 |
Type B (H: Anchor height; D: Plate thickness)
| Specifications and Models | B2.0 | B2.5 | B3.0 | B4.0 | B5.0 | B6.0 |
| H(mm) | 19 | 19 | 19 | 19 | 19 | 19 |
| D(mm) | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 | 6.0 |
P.S.: Banner width 2000mm, anchor portion 1960mm, A4.0 and below are rolls, A4.0 and above are sheets, other sizes can be customized.
| Type | Material | Thickness range | Typical uses |
| HDPE protective padding | High-density polyethylene | 2mm – 10mm | Sewage tanks, sedimentation tanks, drainage ditches |
| UHMW-PE protective pad | Ultra-high molecular weight polyethylene | 6mm – 20mm | Chemical tank, wear-resistant erosion zone |
| Composite protective gasket | PE + rubber/PP composite | 8mm – 15mm | Highly corrosive and high-impact environments |
| project | unit | index |
| density | g/cm³ | 0.94 – 0.96 |
| tensile strength | MPa | ≥25 |
| Elongation at break | % | ≥300 |
| Impact strength (notch) | kJ/m² | No cracks |
| Water absorption rate | % | ≤0.01 |
| Acid and alkali resistance | – | excellent |
| Operating temperature | ℃ | -50 ～ +80 |
We possess a unique set of features and advantages, applicable to multiple scenarios. Below are our features and advantages, designed specifically for you.
• Excellent corrosion resistance:It exhibits excellent resistance to various chemical media such as acids, alkalis, and salts; it can prevent concrete from being corroded, carbonized, or damaged by penetration for a long period of time.
• High polymer impact resistance:Made of high-molecular-weight polyethylene, it has excellent toughness and impact resistance, making it suitable for heavy-duty and long-term scouring environments.
• Excellent seepage prevention performance:The material itself is highly dense, and the weld can achieve a complete seal, ensuring the seepage prevention effect of the pool or channel.
• Anti-aging and wear-resistant:It has a high abrasion resistance coefficient and is resistant to ultraviolet aging, making it suitable for long-term indoor and outdoor use environments.
• Sturdy structure and easy to install:The back of the plate can be designed with V-shaped, T-shaped anchoring protrusions or grooves, forming an integral part with the concrete pouring; installation and maintenance are convenient, on-site hot-melt welding is supported, and weld inspection is simple and reliable.
It’s a pleasure to meet you! Whether you want to learn more about our products, inquire about our service process, or have any questions or feedback, please feel free to “find” us. We will listen attentively to every voice and promptly answer your questions and provide assistance.