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.
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.
Made of high-molecular-weight polyethylene, it has excellent toughness and impact resistance, making it suitable for heavy-duty and long-term scouring environments.
The material itself is highly dense, and the weld can achieve a complete seal, ensuring the seepage prevention effect of the pool or channel.
It has a high abrasion resistance coefficient and is resistant to ultraviolet aging, making it suitable for long-term indoor and outdoor use environments.
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.
• Precast concrete wastewater pipes • Drinking water concrete pipes and feeder water pipes
• Concrete liquid storage tank • Sewage well repair • Concrete chamber
• Concrete utility tunnel • Concrete elevator station
• Concrete sump wells • Concrete structures of wastewater treatment plants
• C302 pressure concrete pipe • Industrial wastewater concrete enclosure structure
• Municipal and agricultural concrete digesters • Public facility reinforced concrete pipes
◆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 |
Anchored structure: Protrusions are designed on the back of the sheet material, which is integrated with the concrete pouring;
Welded sealing: Hot melt welding gun or extrusion welding technology is used to achieve a sealed connection between the sheets;
On-site forming: It can be cut, hot-bent or spliced on-site according to the project size.
Concrete protection is a project-specific solution. Renato provides versatile concrete protection liner solutions for a wide range of projects, including design consulting services, designed to ensure your infrastructure and investments are fully protected.
A: High load-bearing capacity (30-100 tons), wear-resistant and slip-resistant, strong weather resistance, and can be reused for 5-8 years.
A: Municipal construction, outdoor exhibitions, landscaping and other small and medium-sized projects, as well as medium-sized machinery operations.
A: Yes, it is lightweight and easy to move. It can be quickly laid by a single person and is suitable for small projects and events.
A: 50-300 tons, suitable for outrigger support of heavy machinery such as truck cranes and drilling rigs.
A: Both are consistent, with a temperature range of -40℃ to +80℃, making them suitable for use in various environments.
A: Yes, they are all made of environmentally friendly materials such as HDPE/UHMW-PE, and can be recycled and reused.
A: Yes, heavy-duty, medium-duty, light-duty, and leg pads can all be customized in color and size.
A: Lighter and easier to move, weather-resistant and corrosion-resistant, with a service life of 5-10 years.
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