HDPE Welding Rods
We supply HDPE welding rods for compatible geomembrane extrusion welding and carry out liner details, repairs and connections through our installation team. Bring the liner and welding-consumable requirements to one supplier.
Manufactured for Performance - Not Generic Plastic Rod
This is true geomembrane-grade welding rod, not general-purpose plastic extrusion filler.
Produced using compatible HDPE resin systems developed for thermoplastic liner installation
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That compatibility ensures:
molecular fusion bonding
weld strength integrity
long-term durability
Stocked in South Africa - Supplied Across Africa
We supply 4mm HDPE welding rods to:
Geomembrane contractors
Mining companies
Landfill operators
Environmental engineers
Infrastructure developers
Delivery coverage:
South Africa nationwide
SADC region
West Africa
East Africa
Central Africa
Bulk pallets, project supply and export quantities available.
Other Sizes Available on Order
While 4mm is the stocked industry standard, we can supply additional diameters on request:
3mm HDPE rod
5mm HDPE rod
custom colours
project-specific formulations
Technical Specifications - 4mm HDPE Welding Rod
| Property | Value |
|---|---|
| Diameter | 3.9 - 4.2 mm |
| Density | ≥ 0.940 g/cc |
| Standard OIT | > 100 minutes |
| High Pressure OIT | > 400 minutes |
| Carbon Black | 2-3 % |
| Carbon Dispersion | Category 1-2 |
| Packaging | 5 kg & 10 kg reels |
Interpretation for Engineers & Installers
High OIT values = strong oxidation resistance
Proper carbon black = UV stability
Tight diameter tolerance = consistent weld bead
These are critical indicators of field welding reliability.
Applications and uses
We supply and install this product for:
- Extrusion-welded geomembrane details, repairs and patches.
- Compatible liner connections at penetrations and terminations.
Why choose HDPE Welding Rods?
- Consumables for compatible extrusion welding
- Liner details and repair work
- Supply backed by installation capability
Installation and technical guidance
Design and procurement inputs
Match the welding rod resin to the geomembrane and approved welding procedure; confirm rod diameter, cleanliness, storage and trial-weld acceptance.
Provide the product grade or performance specification, drawings or BOQ, quantities, site location and required date. We will define supply, delivery and any agreed installation and QA/QC responsibilities in the quotation.
Request a product-specific quotation →Engineered for Geomembrane Installation Professionals
Our welding rods are specifically designed for:
HDPE geomembrane liner welding
Concrete Protection Liner (CPL) welding
T-joint capping
Patch repairs
Detail welding
Compatible with leading extrusion welders including:
Leister
DemTech
Ritmo
All professional geomembrane extrusion units
SELECTION · SPECIFICATION · PROJECT SUPPLY
Choose the right specification
Select a welding rod compatible with the liner resin and the approved extrusion-welding procedure.
- Confirm the actual liner polymer and the required rod designation and diameter.
- Check welding-machine compatibility, cleanliness, storage and batch traceability.
- Qualify welding conditions and test joints under the approved project procedure.
Define the quality records
Verify rod and liner identity, trial weld results, extrusion records, joint inspections and repairs.
For a useful quotation: send the grade or performance specification, quantity, location, required date and scope. Availability, delivery and installation responsibilities are confirmed in the quotation.
Why Geosynthetics South Africa
One enquiry coordinates the specified product, technical submission, delivery and any agreed installation and QA/QC scope. We define quantities, programme, responsibilities and handover requirements against your project.
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HDPE welding rods
Compatible consumables for extrusion welding
Precision-manufactured welding rods designed for consistent melt flow, clean extrusion and high-strength fusion - trusted across Africa for critical liner installation projects.
Global brands
GSE geomembranes, MIRAFI geotextiles, Tensar geogrids and Eurobent GCLs, supported by grade-specific technical documentation.
Supply & installation
Product supply, site delivery, fabrication and specialist installation coordinated to the project specification and programme.
Documented QA/QC
Material traceability, installation inspections, applicable testing and handover records defined for the agreed scope.