Description
PVDF Welding Rod Specification:
1:Diemeter 3mm, or 4mm
2:Weight: 1kg Per Roll
3:MOQ: 1kg
4:Package: Carton ,or as your request.
PVDF Welding Rod is a high-performance filler material specifically designed for welding PVDF thermoplastic components. Manufactured from high-purity PVDF resin, it ensures strong, homogeneous welds with excellent chemical resistance and long-term reliability in corrosive industrial environments.
PVDF welding rods play a critical role in the fabrication and repair of PVDF piping systems, tanks, ducts, and chemical equipment. To ensure weld integrity and system reliability, PVDF welding rods are produced from carefully controlled, high-quality PVDF resin that matches the base material in chemical composition and thermal behavior.
From a material compatibility perspective, PVDF welding rods provide excellent fusion with PVDF sheets, pipes, and fittings. Because the filler material and base material share the same molecular structure, the welded joint forms a homogeneous bond rather than a simple mechanical connection. This results in weld seams with high strength, chemical resistance, and long-term durability.
In terms of chemical resistance, PVDF welding rods retain the inherent properties of PVDF resin. Welded joints resist strong acids, alkalis, halogens, oxidizing agents, and many organic solvents. This makes PVDF welding rods suitable for chemical storage tanks, exhaust systems, scrubbers, and fluid handling equipment operating in highly corrosive environments.
Regarding thermal performance, PVDF welding rods are designed to perform reliably within the typical PVDF service temperature range. Properly executed welds maintain structural integrity at continuous operating temperatures up to approximately 140–150°C, depending on design and pressure conditions. The consistent melt flow behavior of virgin PVDF ensures stable welding performance and uniform bead formation.
From a fabrication and quality standpoint, high-quality PVDF welding rods offer consistent diameter, smooth surface finish, and stable extrusion characteristics. These features help fabricators achieve uniform weld seams, reduce porosity, and minimize the risk of cracking or weak joints. PVDF welding rods are commonly supplied in round or triangular profiles to support different welding techniques and joint designs.
Specification
PVDF Rod Specification (nuatural)
|
Product |
Size |
Weight(kg/pcs) |
Remark |
|
PVDF Rod |
θ10mm*1M |
0.15 |
|
|
Θ20mm*1M |
0.6 |
||
|
Θ25mm*1M |
0.95 |
||
|
Θ30mm*1M |
1.4 |
||
|
Θ35mm*1M |
2.0 |
||
|
Θ40mm*1M |
2.5 |
||
|
Θ50mm*1M |
3.8 |
||
|
Θ60mm*1M |
5.4 |
||
|
Θ65mm*1M |
6.0 |
||
|
Θ80mm*1M |
9.3 |
||
|
Θ90mm*1M |
11.7 |
||
|
Θ100mm*1M |
14.45 |
||
|
Θ120mm*1M |
20.5 |
||
|
Θ150mm*1M |
32.0 |
PVDF Welding rod specification
|
Product |
Size |
MOQ |
Remark |
|
PVDF circular welding |
θ3mm |
1kg |
1kg roll |
|
θ4mm |
|||
|
PVDF triangle welding |
Θ3*3*4mm |
Technical Parameter of PVDF
|
ITEM |
STANDARD |
VALUE |
|
Density |
ISO1183 |
1.77cm3 |
|
Volume Resistance |
VDE0303 |
>1013 |
|
Water absorbability |
DIN53 495 |
0.04% |
|
Surface Resistance |
VDE0303 |
>1014 |
|
Dielectric constant(1MHZ) |
DIN53 483 |
7.25 |
|
Continuous Operating Temperature |
-40 ~140ºC |
|
|
Dielectric dissipation factor(1MHZ) |
DIN53 483 |
0.18 |
|
Yield tension strain |
ISO527 |
50MPa |
|
Leakage current intensity |
DIN53 40 |
KC300 |
|
Ultimate tension strain |
ISO527 |
46Mpa |
|
Resistance to impact toughness |
ISO179 |
252kj/m2 |
|
Friction Factor |
DIN53 375 |
0.34 |
|
Gap impact toughness |
ISO179 |
22kj/m2 |
|
Combustion performance |
UL94 |
V-0 |
|
Rockwell hardness |
ISO2039-1 |
80MPa |
|
Shore D hardness |
DIN53 505 |
78MPa |
|
Bending Strength |
ISO178 |
80MPa |
|
Modulus of Elasticity |
ISO527 |
2000MPa |
Typical Applications
● Welding PVDF sheets, pipes, and fittings
● Fabrication of chemical tanks and vessels
● PVDF exhaust ducts and scrubber systems
● Repair of PVDF piping and linings
● Industrial plastic fabrication projects
Advantages
● Features: Virgin PVDF material, consistent rod diameter, excellent melt flow compatibility.
● Advantages: Strong, homogeneous welds with excellent chemical and thermal resistance.
● Benefits: Improved joint reliability, extended service life of fabricated equipment, reduced maintenance and repair costs.
● Evidence: PVDF welding rods are widely used in chemical processing plants, water treatment facilities, and industrial plastic fabrication, with weld performance verified through pressure testing, visual inspection, and long-term service applications.
PVDF welding rods are available in multiple diameters, profiles, and packaging options to meet fabrication requirements.
Characteristics Platform

Quality Control

Packagings
25kg/woven bag, 800kg/pallet

Workshop Gallery

Customer Cases

FAQ
Q1: Why is material compatibility important for PVDF welding rods?
A: Using PVDF welding rods ensures homogeneous fusion with PVDF base materials, resulting in stronger and more chemically resistant welds.
Q2: What welding methods are suitable for PVDF welding rods?
A: PVDF welding rods are commonly used with hot-air welding and extrusion welding techniques.
Q3: What temperature range can PVDF welded joints handle?
A: Properly welded PVDF joints typically support continuous service temperatures up to around 140–150°C.
Q4: Are PVDF welding rods resistant to corrosive chemicals?
A: Yes. PVDF welding rods retain excellent resistance to acids, alkalis, solvents, and oxidizing chemicals.
Q5: Are different sizes and profiles available?
A: Yes. PVDF welding rods are available in various diameters and profiles, such as round or triangular, to suit different welding applications.
Need reliable PVDF welding rods for fabricating or repairing PVDF equipment?
Contact us today to request technical data, welding recommendations, or assistance in selecting the right PVDF welding rod for your application.
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