PVC Geomembrane — Flexible Waterproof Liner for Construction & Environmental Projects
Polyvinyl chloride (PVC) geomembrane liners for construction, environmental, and waterproofing projects. Smooth or textured, 0.5–3.0 mm, factory-direct supply worldwide.
Referência ASTM/GRI/ISO
Diretamente da fábrica
Exportar globalmente
Properties of Geomembrana de PVC
PVC geomembrane remains flexible even in low-temperature environments (-20℃ to -40℃), without becoming brittle.
With an elongation rate of 300%–500%, PVC geomembrane can adapt to uneven settlement and deformation, reducing the risk of cracks caused by ground movement.
Stabilized with UV and antioxidant additives, PVC geomembrane offers reliable weathering and anti-aging performance, with a service life of 20+ years.
PVC geomembrane supports hot-air or high-frequency welding, ensuring high seam strength and excellent impermeability.
PVC geomembrane can be produced in transparent or opaque types. Transparent liners allow light penetration, useful for agriculture or solar-related projects.
Compared with HDPE geomembrane, PVC offers better flexibility and welding performance at a lower cost, delivering excellent cost-effectiveness.
Conheça Geomembrana de PVC
PVC geomembrane is a flexible, impermeable liner made from polyvinyl chloride resin with added plasticizers and stabilizers. It is widely used for waterproofing and anti-seepage applications in civil, agricultural, and construction projects.
PVC geomembrane material is based on polyvinyl chloride, blended with UV stabilizers, antioxidants, and eco-friendly plasticizers. Compared with HDPE, it offers higher flexibility and easier welding, making it ideal for underground and roofing waterproofing.
Typical PVC geomembrane thickness ranges from 0.5 mm to 3.0 mm. Standard sizes include 0.75 mm, 1.0 mm, 1.5 mm, and 2.0 mm, available in rolls or sheets up to 8 meters wide.
Yes, PVC geomembrane is an impermeable liner with very low permeability. It provides reliable waterproofing for basements, tunnels, reservoirs, and ponds.
PVC geomembrane is mainly used for seepage control and waterproofing in multiple industries:
Water conservancy projects: reservoirs, dams, canals
Environmental engineering: landfill covers, sewage treatment ponds
Building waterproofing: basements, roofs, tunnels
Agricultural projects: aquaculture ponds, irrigation canals
Landscape engineering: artificial lakes, decorative ponds
⚠️ Not recommended for:
Extreme low-temperature conditions (below -40℃)
Long-term contact with highly corrosive chemicals
The service life of PVC geomembrane is typically 15–25 years, depending on thickness, installation quality, and exposure conditions. In underground or covered projects, lifespan can be even longer.
Color Options of PVC Geomembrane
Surface: PVC geomembrane is typically produced with smooth surfaces for easy cleaning and welding. Textured options are available on request for projects requiring extra friction.
Colors:
Gray PVC geomembrane – commonly used in underground waterproofing and roofing.
Black PVC geomembrane – general waterproofing applications.
White PVC geomembrane –reflects sunlight, helps reduce surface temperature, suitable for hot climates and projects requiring thermal control.
PVC Geomembrane Thickness Guide & Aplicações
| Espessura (mm) | Principais recursos de desempenho | Aplicações Típicas | Especificações e notas recomendadas |
|---|---|---|---|
| 00,50mm PVC geomembrane sheet |
Basic impermeability, high flexibility, adapts to complex ground | Small ecological ponds, farmland canals, temporary water storage | Use with nonwoven geotextile protection; avoid direct contact with sharp loads |
| 00,75mm PVC geomembrane roll |
Improved impermeability, medium puncture resistance, good UV resistance | Aquaculture ponds (PVC geomembrane pond liner), small drainage ditches, low-slope embankments | Single-textured option available; can be laid directly on flat foundations |
| 1,00 mm Standard PVC geomembrane thickness |
Common choice, cost-effective, strong impact & puncture resistance | Agricultural irrigation & drainage systems, small landfill leachate ponds, municipal stormwater reservoirs | Smooth or textured PVC geomembrane; recommend sand cushion or geotextile isolation |
| 1,20 mm PVC geomembrane liner |
Good puncture resistance, better chemical and aging resistance | Sewage treatment ponds, basement waterproofing, tailings dam base lining | Combine with geotextile for extra protection; place textured surface against soil for slope stability |
| 1,50 mm PVC geomembrane sheet |
High tensile strength, resistant to impact and root penetration | Medium-size landfill sidewalls (PVC geomembrane for landfill), large tailings ponds, chemical waste ponds | Double-textured PVC geomembrane recommended for 5–15° slopes; seams require strict leak detection |
| 2,00mm PVC geomembrane roll |
Engineering-grade thickness, high puncture & chemical resistance, withstands UV and high temperatures | Large sludge ponds, hazardous waste containment, high-temperature exposed environments | Use with high-strength geotextile for multi-layer anti-seepage; automated welding recommended |
| 2,50–3,00 mm Heavy-duty PVC geomembrane liner |
Extreme performance, superior puncture resistance, crack propagation resistance, long service life | Nuclear waste storage, deep foundation waterproofing, large industrial tailings dams | Multi-layer reinforced PVC geomembrane; requires professional installation; service life 30+ years |
PVC Geomembrane Specifications, Teste e folha de dados
| Propriedade | Método de teste (ref.) | Valor típico/mínimo | Observação |
|---|---|---|---|
| Densidade | ASTM D1505 | 1.20–1.35 g/cm³ | PVC geomembrane density |
| Resistência à tracção | ASTM D638 | ≥ 15–20 MPa | strength of PVC geomembrane sheet |
| Alongamento na ruptura | ASTM D638 | ≥ 300%–500% | high flexibility, adapts to settlement |
| Resistência ao rasgo | ASTM D1004 | ≥ 80 N | tear resistance of PVC liner |
| Resistência à perfuração | ASTM D4833 | ≥ 200 N | resistência ao impacto e à perfuração |
| Carbon Black / Additives | ASTM D4218 | 2–3% (if black) | UV stabilizers for outdoor PVC geomembrane |
| Estabilidade Dimensional | ASTM D1204 | ±2% | thermal stability during installation |
| Permeabilidade à Água | ASTM D5084 | ≤ 1.0 × 10⁻¹³ cm/s | PVC geomembrane impermeability |
| Service Temperature | — | -20℃ to +60℃ | operating range of PVC geomembrane liner |
PVC Geomembrane Installation, Soldagem e CQA
Métodos de soldagem
PVC geomembranes are thermoplastic materials, which means they can be welded using heat-based methods to create strong, watertight seams. Below are the commonly used welding techniques:
Soldagem a ar quente
Ideal for PVC materials, especially in field applications. This method uses a stream of hot air to heat the seam surfaces and a roller to press them together. It is suitable for detailed work and small repairs.Solvent Welding
Commonly used for factory seams or prefabricated panels. A chemical solvent softens the surface of the PVC, allowing it to fuse without added heat. This method ensures molecular bonding but requires controlled conditions.Wedge Welding (Modified for PVC)
Less common than with HDPE, but some installers use modified wedge welders with lower temperatures to create continuous seams for large-scale PVC liner installations.Extrusion Welding (Not Recommended for PVC)
Unlike HDPE, extrusion welding is not typically recommended for PVC geomembranes due to the material’s sensitivity to high heat and risk of degradation.
Seam Preparation & Overlap Requirements
Surface Cleaning: PVC sheets must be dry, clean, and free of dust, oil, or debris before welding. Use lint-free cloths and PVC-safe cleaning agents.
Largura da sobreposição: A minimum overlap of 100–150 mm (4–6 inches) is required to ensure proper fusion and leak-free joints.
Tacking: Temporary tacking with hot air or light adhesive may be used before full seam welding to prevent misalignment in windy or uneven conditions.
Important Considerations for PVC Welding
Ambient Temperature: PVC welding is sensitive to ambient conditions. Optimal results are achieved between 5°C–35°C (41°F–95°F).
PVC Flexibility: PVC remains flexible in low temperatures, making it ideal for cold-weather installations compared to HDPE.
UV Protection: If exposed, consider using UV-stabilized PVC or cover with protective layers to prevent degradation over time.
HDPE vs PVC Geomembrane — Key Differences, Applications & Selection Guide
| Item de comparação | Geomembrana de PVC | HDPE Geomembrana |
|---|---|---|
| Material Composition | Polyvinyl chloride resin with plasticizers, stabilizers, UV additives | High-density polyethylene resin with antioxidants and carbon black |
| Densidade | 1.30–1.45 g/cm³ | 00,941–0,965 g/cm³ |
| Resistência à tracção | 25–35 MPa | 30–40 MPa |
| Alongamento | 200–400% (high flexibility) | ≤ 500% |
| Resistência à perfuração estática | 150–300 N (ASTM D4833) | 300–400 N (ASTM D4833) |
| Dynamic Impact Resistance | 800–1200 J (drop weight test) | 400–800 J |
| Resistência ao rasgo | 120–200 N | 100–180 N |
| Resistência química | Excellent, resistant to most acids, alkalis, and solvents | Outstanding, highly resistant to strong acids, alkalis, and oils |
| UV Aging Resistance | Good, requires stabilizers and additives | Excellent, high carbon black content provides long-term UV stability |
| Root Resistance | Moderado | Bom |
| Service Temperature | –30℃ to +70℃ | –50℃ to +60℃ |
| Welding Method | Hot-melt welding, hot-air welding | Extrusion welding, hot wedge welding, fusion welding |
| Resistência da costura | ≥ 80% of parent material | ≥ 90% of parent material |
| Installation Convenience | Easy to weld, flexible, conforms to complex structures | Rigid, requires preheating and professional welding equipment |
| Common Thickness Range | 00,5–2,0 mm | 00,5–3,0 mm |
| Common Colors | Black, white, gray, green (custom available) | Black (mainstream), white, green, blue (custom available) |
| Price Level | Médio | Mais alto |
| Service Life | 15–30 years | 25–50 years |
| Main Applications | Reservoirs, roofing waterproofing, landfill capping, basements, decorative ponds | Large hydraulic projects (dams, canals), chemical ponds, hazardous waste sites, tailings dams |
| Selection Recommendation | Best for flexibility, complex structures, and high dynamic impact areas | Best for high strength, static puncture resistance, and long-term exposed projects |
Por que escolher Especialista WP？
Over the years, we have established ourselves among trusted PVC geomembrane manufacturers and global PVC geomembrane distributors. Our focus is on delivering reliable liners that meet critical engineering projects.
- Free Samples of PVC Geomembrane Sheet
- Suporte especializado a projetos
- Garantia de qualidade confiável
- Mais de 10 anos de experiência em fabricação
- Fornecimento direto da fábrica
Noções básicas de Wholesale PVC Geomembrane
Inclua o tipo de projeto (lagoa, aterro, mineração, reservatório), espessura necessária, superfície (lisa/texturizada), preferência de tamanho de rolo e condições de entrega (FOB/CIF + porto).
Yes, free PVC geomembrane sheet samples are available for evaluation prior to bulk purchase.
O prazo de entrega típico é de 15 a 25 dias para produção, mais o cronograma de envio, dependendo do porto de destino.
A largura padrão do rolo para exportação é 5,8m, que é otimizado para carregamento de contêineres. Larguras maiores, como 1–6 m também estão disponíveis, dependendo das condições reais de carregamento do contêiner. O comprimento do rolo geralmente varia de 50–150 metros, ajustado por espessura. Painéis pré-fabricados personalizados podem ser fornecidos, se necessário.
The weight of a PVC geomembrane liner is calculated by:
Weight (kg)=Thickness (mm)×Width (m)×Length (m)×Density (g/cm³)÷1000\text{Weight (kg)} = \text{Thickness (mm)} \times \text{Width (m)} \times \text{Length (m)} \times \text{Density (g/cm³)} \div 1000
👉 For example, a 1.0 mm PVC geomembrane roll (density ~1.35 g/cm³, size 7 m × 50 m):
1.0×7×50×1.35=472.5 kg/roll1.0 \times 7 \times 50 \times 1.35 = 472.5 \, kg/roll
A capacidade é calculada com base em 40HQ ≈ 25 toneladas carregando peso. A contagem exata do rolo depende da espessura e largura do rolo; calculamos pelo peso do liner por m² e limite de peso do container.
O pedido mínimo recomendado é 5.000 m². Como a geomembrana é volumosa e pesada, sugerimos pelo menos uma Contêiner 20GP para um envio eficiente. Também podemos ajudar em consolidando com outras cargas se necessário.
Nós somos um Fabricante de geomembrana na China, e as remessas podem ser organizadas a partir de qualquer grande porto chinês como Qingdao, Xangai ou Ningbo.
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