If you’re looking for a durable, high-performance geomembrane with a unique design, V-Grip Geomembrane is the ideal choice for your engineering projects. Designed according to international standards and precise technical specifications, this product offers a reliable solution for waterproofing, leakage control, and the stability of soil and industrial structures. Below, you can explore the specifications, features, and standards used in the production of V-Grip Geomembrane.
Farnam Baspar v-grip geomembrane specification
Farnam Baspar’s V-Grip Geomembrane is an HDPE liner featuring V-shaped anchor profiles on its back surface for enhanced mechanical bonding with concrete. It is designed for permanent waterproofing of concrete structures such as tanks, tunnels, manholes, and wastewater plants. The liner offers excellent resistance to pressure, chemicals, and long-term deformation. The table below outlines its technical specifications.
| PROPERTY | TYPICAL VALUE | STANDARD/TEST METHOD |
| MATERIAL | HDPE | - |
| SHEET THICKNESS | 2.0 – 5.0 mm | ASTM D5199 |
| SHEET WIDTH | 2.0 – 3.0 m | Manufacturer Spec |
| ANCHOR PROFILE TYPE | V-shaped anchor ribs | Design Spec |
| PROFILE HEIGHT | 4.0 – 12 mm | Manufacturer Spec |
| PROFILE SPACING (PITCH) | 30 – 80 mm | Visual Layout |
| TENSILE STRENGTH (MD/TD) | ≥ 25 MPa | ASTM D638 / ISO 527 |
| ELONGATION AT BREAK | ≥ 600% | ASTM D638 |
| HYDROSTATIC RESISTANCE | ≥ 1.0 MPa | ASTM D751 |
| CHEMICAL RESISTANCE | Excellent (acids, alkalis, industrial fluids) | ASTM D5322 |
| UV RESISTANCE | Moderate | ASTM G154 |
| WELDABILITY | Excellent (hot wedge, extrusion) | Field Practice |
| USE CASE | Embedded waterproofing for concrete structures | Manufacturer Spec |
Key features and advantages of Farnam Baspar v-grip membrane
- Effective Mechanical Bonding with Concrete:
V-shaped anchor ribs allow secure integration into cast-in-place concrete, ensuring long-term sealing. - High Mechanical and Chemical Resistance:
Manufactured from durable HDPE, resistant to acids, alkalis, salts, and aggressive fluids. - Ideal for High-Pressure and Wet Environments:
Suitable for tanks, tunnels, manholes, and wastewater facilities under hydraulic stress. - Excellent Weldability and On-site Installation:
Supports extrusion or wedge welding for leak-proof joints in large infrastructure projects. - Long-Term Durability in Harsh Conditions:
Maintains structural integrity under thermal variation, hydrostatic pressure, and long-term loading.
Farnam Baspar v-grip membrane standards
- Complies with ASTM D5199 for geomembrane thickness measurement
- Tensile strength and elongation tested under ASTM D638 and ISO 527
- Tear resistance evaluated using ASTM D1004
- Hydrostatic pressure resistance tested according to ASTM D751
- Chemical resistance assessed via ASTM D5322
- UV resistance verified under ASTM G154 or G155
- Weldability and seam quality ensured through GRI GM19 guidelines
- Quality management system based on ISO 9001:2015
- Product testing conducted in ISO 17025-accredited laboratory
- Conforms to DIN 16734 and EN 13967 for waterproofing in concrete structures
V-Grip geomembrane price
The cost of V-Grip geomembrane per square foot can vary depending on various factors. It is always best to obtain the current price from experts. You can contact Farnam Baspar to get the price of V-Grip geomembrane in Iran.
Why choosing Farnam Baspar?
Farnam Baspar is the leading V-Grip geomembrane manufacturer in Iran, recognized for delivering high-quality geosynthetic solutions. With over two decades of industry expertise, the company offers a comprehensive range of engineered products, including smooth and textured geomembranes, T-Grip and V-Grip liners, geotextiles, geogrids, geodrains, and combo grids. All production processes adhere to international standards such as ASTM, ISO, and GRI, with materials tested in an ISO 17025-accredited quality control laboratory. Farnam Baspar’s commitment to customized solutions, technical support, and consistent product quality has established it as a trusted partner in major national and infrastructure projects.
Frequently asked questions
How strong is V-Grip geomembrane?
The strength of V-Grip geomembranes can vary depending on several factors. The tensile strength of HDPE V-Grip geomembranes typically ranges from 20 to 40 pounds per inch (PPI), depending on the specific product and manufacturer.
When should V-Grip geomembrane be used?
Here are some situations where V-Grip geomembrane is commonly used:
- Landfills
- Mining
- Water storage
- Slope stabilization
- Secondary containment
How is V-Grip geomembrane installed?
- Site preparation
- Geotextile underlayment
- V-Grip geomembrane installation
- Seaming
- Inspection
- Cover material installation
How do I choose the right v-grip geomembrane for my project?
- Project Type and Application
- Concrete Structures: V-Grip geomembranes are specifically designed for installation in fresh concrete (e.g., tanks, tunnels, canals, foundations). If your project involves concrete casting and requires reliable waterproofing, V-Grip is the best choice.
- Soil or Granular Subgrade: For earthen ponds, reservoirs, or landfills, smooth or textured geomembranes are more common; V-Grip is mainly used when mechanical bonding with concrete is required.
- Material Type (HDPE or PVC)
- HDPE V-Grip: High chemical resistance and long-term durability, ideal for industrial tanks, wastewater treatment plants, and chemically aggressive environments.
- Thickness Selection
- Common thicknesses range from 2.0 to 3.0 mm.
- For heavy-duty projects with high hydrostatic pressure (such as large reservoirs or high-load structures), 3.0 mm geomembranes are recommended.
- Anchor Stud Design
- The height and spacing of the studs directly affect bonding strength with concrete.
- For structures under high pressure, geomembranes with denser and taller studs provide stronger mechanical interlock.
- Environmental and Chemical Conditions
- In environments with chemicals or industrial effluents, HDPE V-Grip is the more reliable option.
- For tunnels and foundations, HDPE V-Grip is often preferred due to its flexibility.
- Standards and Installation
- The product should comply with international standards (ASTM, GRI, DIN, etc.).
- Project success also depends on professional installation teams and the use of specialized welding equipment.
To select the right T-Grip geomembrane, consider the project type (concrete vs. soil), the required material (HDPE or PVC), thickness, stud design, and environmental/chemical conditions. Ultimately, proper installation by experienced crews is just as important as product selection.
What is the lead time for v-grip geomembrane?
- Production Time: Since V-Grip geomembranes are often custom-made (with specific thickness, width, or panel size), production time typically ranges from 2 to 3 weeks, depending on order volume.
- Stock Availability: If standard sizes are available in stock, delivery can be arranged within just a few working days.
- Domestic Transportation: For local deliveries, shipping usually takes 2 to 7 working days, depending on project location.
- International Shipping: For export orders, lead time depends on the shipping method:
- Sea freight: 4 to 6 weeks, depending on the destination
Summary: The lead time for T-Grip geomembranes generally ranges between 3 to 6 weeks from order placement, depending on order volume, stock availability, and shipping method.
Do you offer a warranty on v-grip geomembrane?
Yes, Farnam Baspar’s V-Grip geomembranes are supplied with a manufacturer’s quality warranty, reflecting our commitment to delivering durable products that comply with international standards.
- Manufacturer’s Warranty:
T-Grip geomembranes are guaranteed for the quality of raw materials, uniform thickness, consistency of anchor studs, and compliance with recognized international standards such as ASTM, EN, and ISO. - Warranty Duration:
Depending on the material type (HDPE , LLDPE), selected thickness, and project requirements, the warranty period typically ranges from 5 to 10 years. - Warranty Coverage:
The warranty covers the retention of mechanical properties within the specified period, absence of manufacturing defects, and stability under normal environmental conditions.
However, installation, subgrade preparation, and site execution are the responsibility of the project contractor and are not included under the manufacturer’s warranty. - Use in Civil and Industrial Projects:
Farnam Baspar’s T-Grip geomembranes are engineered for waterproofing of concrete structures such as tanks, tunnels, canals, and foundations. Their long-term performance is assured when properly installed by qualified and experienced contractors in accordance with international standards.
In summary: Farnam Baspar’s T-Grip geomembrane warranty focuses on product quality and compliance with technical specifications, while the responsibility for proper installation rests with specialized contractors.
Are your v-grip geomembrane sheets resistant to chemicals?
Yes, our geomembranes offer excellent chemical resistance, which makes them an ideal choice for environmental and industrial containment applications.
- Resistance to a Wide Range of Chemicals:
- HDPE and LLDPE geomembranes provide outstanding resistance against acids, bases, salts, and most organic and inorganic compounds. For this reason, they are extensively used in landfills, industrial wastewater ponds, and mine tailings storage facilities.
- Long-Term Durability:
The polymeric structure of these products ensures that they maintain their mechanical and hydraulic properties even under long-term exposure to aggressive fluids.
- Limitations and Considerations:
Although geomembranes resist most chemicals, certain aromatic hydrocarbons, heavy oils, and strong organic solvents may require specific Chemical Compatibility Testing to confirm suitability.
In summary, our HDPE, LLDPE, V-grip geomembranes are engineered to deliver reliable and long-lasting containment performance in chemically aggressive environments.
How long do Farnam Baspar’s v-grip geomembrane last?
Farnam Baspar’s geomembranes are manufactured using premium raw materials and optimized formulations, ensuring a very long service life.
- Designed Lifespan:
Our HDPE and LLDPE geomembranes, when properly installed and maintained, can deliver safe and reliable performance for over 50 years.
- Resistance to Harsh Environmental Conditions:
These products are engineered to withstand UV exposure, temperature fluctuations, and moisture variations, while retaining their mechanical integrity and impermeability over the long term.
- Special Applications:
For projects involving direct contact with aggressive chemicals, chemical compatibility assessments are recommended to provide additional assurance of durability and service life.
- Quality Standards:
Farnam Baspar geomembranes are manufactured in compliance with international standards such as ASTM and GRI, ensuring long-term durability and consistent performance in civil and environmental engineering applications.
In summary, Farnam Baspar’s geomembranes are designed and produced for long-lasting and reliable service, making them one of the most technically and economically efficient solutions for demanding projects.
Is special equipment required for installation v-grip geomembrane?
Yes, the installation of gripped geomembranes requires specialized equipment and experienced crews to ensure watertight performance and long-term durability of the system.
- Thermal Welding Equipment:
The most essential tools for installation are wedge welders for main seams and extrusion welders for details, corners, and penetrations. These machines allow the creation of strong, impermeable seams in compliance with international standards. - Subgrade / Concrete Preparation Equipment:
For projects where geomembranes are installed over soil or granular subgrade, leveling and compaction must be carried out using earthmoving and compaction machinery.
However, for gripped geomembranes, the product is specifically designed for direct installation in fresh concrete. In this case, the surface does not need to be smooth or finished—the anchor studs of the geomembrane embed into the fresh concrete and create a secure mechanical bond. - Quality Control Tools:
To ensure seam integrity, field tests such as air pressure testing, vacuum box testing, and, where applicable, spark testing are conducted during installation. - Safety Equipment:
The use of appropriate personal protective equipment—including safety boots, heat-resistant gloves, and fall-protection systems on slopes or elevated areas—is mandatory depending on site conditions. - Specialized Installation Teams:
The successful installation of gripped geomembranes requires trained and experienced crews who are skilled in operating specialized welding equipment and strictly follow international standards.
In summary: The installation of gripped geomembranes cannot be achieved without specialized equipment and professional teams. These products can be applied not only over soil subgrades but also directly onto fresh concrete, without requiring the concrete surface to be smooth or finished.
What is your return policy for v-grip geomembrane?
Farnam Baspar is committed to delivering geomembrane products of the highest quality, fully compliant with international standards. Nevertheless, to ensure customer confidence, our return policy is defined as follows:
- Defective or Manufacturing-Fault Products
If a product is found to have a manufacturing defect, non-conforming thickness, or damage incurred during transportation, customers may return the goods. After technical inspection, the product will either be replaced or refunded. - Return Conditions
- The product must not have been used or installed.
- Rolls must be returned in their original factory packaging.
- Return requests must be submitted within 30 days of delivery.
- Non-Returnable Items
Customized orders (e.g., products manufactured with special thicknesses or widths) are non-returnable due to their tailored nature, unless a proven manufacturing defect exists. - Shipping and Costs
- In cases of verified manufacturing defects, all transportation and replacement costs will be covered by Farnam Baspar.
- For other return requests, logistics expenses will be borne by the customer.
By implementing this policy, Farnam Baspar guarantees product quality while ensuring long-term customer trust and satisfaction.
How is v-grip geomembrane shipped, and what are the delivery options?
Due to their large dimensions and sensitivity to mechanical damage, geomembranes require specialized packaging and handling. Farnam Baspar manages the shipping and delivery process in accordance with international standards.
- Standard Packaging:
Geomembrane rolls are supplied as tightly wound coils, covered with protective wrapping (plastic sheeting and, in some cases, palletized) to safeguard against moisture, dust, and potential damage during transport.
- Modes of Transportation:
- For smaller quantities or domestic projects, shipping is typically carried out by truck or trailer.
- For large-scale or international projects, sea freight in standard containers is the most common method.
- Delivery Options:
- Ex-Works (EXW): The customer arranges and is responsible for transportation.
- Delivered to Site: Farnam Baspar organizes logistics and delivers the product directly to the project site.
- Other Incoterms (FOB, CIF, etc.) can be applied based on contractual agreements.
- Farnam Baspar Advantage:
With extensive experience in both domestic and international projects, Farnam Baspar’s logistics team ensures the fastest, most reliable, and cost-effective shipping and delivery solutions for its clients.
