Industrial-Grade PVC Welding Rod & Plastic Welding Wire | Direct Manufacturer Bulk Supply
PVC welding wire is extruded from virgin polyvinyl chloride homopolymer resin, formulated for hot-air and extrusion welding of PVC sheets, pipes, and structural tanks. Maintaining uniform melt viscosity and tensile strength, this consumable ensures homogeneous fusion bonds that match the chemical and mechanical properties of parent thermoplastic substrates. Available in single strands, coils, and spools, our production complies with DVS 2207 specifications for thermoplastic welding.
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4mm PVC Welding WireThe 4mm PVC welding wire is a specialized rod designed for heat fusion applications, commonly used in joining PVC-based materials such as flooring, industrial membranes, and conductive sheets. With a
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4.5mm PVC Welding WireOur 4.5mm PVC Welding Wire is engineered for premium PVC flooring welding, delivering exceptional fusion and ultra-strong, seamless joints. Boasts excellent corrosion, acid and alkali resistance,
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Sports Flooring Welding WireOur Sports Flooring Welding Wire is tailor-made for professional sports PVC flooring fusion, ensuring ultra-tight, durable seamless joints that stand up to high-impact sports use. Boasts superior
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PVC Commercial Flooring Welding WireOur PVC Commercial Flooring Welding Wire is expertly crafted for high-traffic commercial PVC floor fusion, creating ultra-strong, seamless joints that resist wear, scuffs and heavy foot traffic.
Product Range
Single / Double Round Profiles
Diameters from 2.0mm to 5.0mm for standard handheld hot-air gun nozzles and manual welding torches.
Triangular Profiles
3mm to 7mm triangular shapes engineered for corner joints, fillet welds, and structural tank fabrication.
Flat / Strip Profiles
Custom width strips used for gap-filling and membrane overlapping in corrosion-resistant linings.
Color Selection
Standard industrial grey (RAL 7011), clear, white, and customized color matches based on client RAL color codes.
Homogeneous Fusion: High molecular weight virgin PVC ensures complete molecular entanglement during thermal extrusion welding, eliminating weak boundary layers.
Chemical Resistance: Resists aggressive inorganic acids, alkalis, aqueous salt solutions, and industrial wastewater environments.
Dimensional Consistency: Precision die extrusion maintains outside diameter tolerances within +/- 0.05 mm, preventing jamming in automatic extrusion welders.
Weather & UV Stability: Additive package prevents embrittlement and yellowing under long-term exposure to industrial indoor and outdoor light.
Technical Specifications
|
Specification Item |
Standard Parameters |
Test Method |
|
Material Base |
100% Virgin PVC-U (Unplasticized) |
ISO 1163-1 |
|
Density |
1.38 - 1.42 g/cm3 |
ISO 1183 |
|
Tensile Stress at Yield |
>= 45 MPa |
ISO 527 |
|
Vicat Softening Temperature |
>= 81 °C (VST/B/50) |
ISO 306 |
|
Standard Diameters (Round) |
2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm |
ISO 293 |
|
Standard Profiles |
Round, Triangular (4x4x6 mm, 5x5x7 mm) |
DIN 16934 |
|
Elongation at Break |
>= 80% |
ISO 527 |
|
Burn Behavior |
Flame Retardant (Self-extinguishing) |
DIN 4102 (B1) |
Construction / Material Structure
Polymer Base
Unground suspension-grade PVC resin (K-value 67-71) providing balanced processing fluidity and mechanical strength.
Thermal Stabilizers
Tin-based or calcium-zinc stabilizers prevent thermal degradation during high-temperature extrusion and subsequent welding passes.
Processing Lubricants
Internal and external lubricants optimize melt flow through the extrusion die without leaving surface residues that hinder weld adhesion.
Pigmentation System
Light-fast inorganic pigments blended uniformly to eliminate color streaks or shade variations across long production runs.
Applications
Chemical Processing Equipment
Equipment: Fabrication and repair of pickling tanks, electroplating baths, chemical storage vessels, and scrubber towers.
Environmental Engineering
Industrial exhaust air ventilation ducts, wastewater treatment channels, and landfill leachate drainage systems.
Semiconductor Facilities
Cleanroom acid-exhaust ductwork and corrosive fluid containment systems requiring high-purity polymer compliance.
Manufacturing Capability
Extrusion Equipment: 8 high-precision single-screw extrusion lines equipped with vacuum calibration sizing baths and laser diameter micrometers.
Compounding Control: Gravimetric feeding systems automatically weigh resin, stabilizers, and color masterbatches with an accuracy of 99.9%.
Output Volume: Monthly manufacturing capacity of 180 metric tons, supporting continuous bulk shipping schedules.
Packaging Formats: Continuous spool winding units producing 3kg, 5kg, and 10kg spools, alongside straightened 1-meter cut lengths bundled in 5kg packs.
Quality Control
Melt Flow Rate (MFR) Testing
Every production lot undergoes melt index testing to verify consistent thermal behavior during welding.
Weld Test Verification
Sample welds executed on each shift are subjected to 180-degree bend tests and tensile shear testing to confirm fusion integrity.
Visual Inspection
Online laser gauges monitor ovality and diameter continuously, automatically rejecting out-of-tolerance extrusions.
Batch Traceability
Each master carton carries a barcode label linking to the raw material resin lot number and extrusion shift record.
OEM / Customization
Custom Profiles
Die tooling fabrication within 7 business days for specialized geometric cross-sections according to engineering drawings.
Custom Colors
Exact color matching services for corporate branding or specific project identification codes (MOQ: 300 kg per color).
Private Labeling
Custom printed cardboard spools, adhesive product labels, and neutral export outer carton markings.
Packaging & Bulk Supply
Coil & Spool Options
Plastic spools shrink-wrapped with moisture-barrier PE film to protect against dust and humidity during transit.
01
Carton Specification
Heavy-duty double-wall corrugated export boxes designed to prevent crushing during stacking.
02
Palletization
Fumigation-free wooden pallets secured with stretch wrap and corner protection for secure ocean freight.
03
Container Loading
20GP container accommodates approx. 8 to 10 metric tons; 40HQ container accommodates approx. 18 to 22 metric tons.
04
Match the welding wire polymer precisely to the parent material (ensure PVC welding rod is paired with PVC-U sheets, never mix with PE or PP).
Choose round profiles for groove and fillet root passes; select triangular profiles for high-strength structural corner fills in tanks.
Verify storage conditions: Store welding rods in a dry, temperature-controlled environment away from direct sunlight; precondition cold rods to ambient workshop temperatures before welding.
FAQ
We're well-known as one of the leading PVC welding wire manufacturers and suppliers in China, also support customized service. Please feel free to buy cheap PVC welding wire made in China here from our factory. For price consultation, contact us.
Pvc Commercial Flooring Welding Wire, 4mm Pvc Welding Wire, 4 5mm Pvc Welding Wire
