Custom UPVC Vinyl Floor Welding Rod

This product is a filler rod formulated for welding seamless joints in PVC‑based flooring systems. It is supplied in custom diameters, lengths, and additive packages to match the specific resin formulation of the client’s floor covering.

Material Composition and Performance

The rod consists of a polyvinyl chloride (PVC) base blended with plasticizers, stabilizers, and pigments that replicate the flooring sheet’s flexibility and UV resistance. Typical tensile strength ranges from 12 MPa to 18 MPa, allowing the weld bead to accommodate floor movement without cracking.

Thermal analysis shows a melting point between 78 °C and 85 °C, which aligns with the processing window of most calendered PVC flooring. The additive package can be adjusted to meet specific fire‑rating or antimicrobial requirements.

Manufacturing Process

Raw PVC resin is pre‑dried to below 0.02 % moisture before extrusion. The melt is fed through a precision die that controls rod diameter within ±0.02 mm. Cooling is performed in a calibrated water bath to ensure uniform crystallinity and avoid surface defects.

After extrusion, the rod is cut to length, inspected for ovality, and wound onto anti‑static spools. Each spool is labeled with batch number, diameter, and additive code for traceability.

Customization Options

• Diameter: 2.5 mm to 6.0 mm, adjustable in 0.1 mm increments.
• Length: standard 1 m spools or custom cut lengths up to 5 m per piece.
• Additive packages: UV stabilizers, anti‑static agents, antibacterial agents, or color‑matching pigments.
• Surface finish: smooth or lightly textured to improve grip during welding.

Typical Applications

The welding rod is used to create homogeneous seams in PVC sheet flooring installed in healthcare facilities, where seam integrity prevents fluid ingress and supports cleaning protocols.

In commercial kitchens, the rod’s chemical‑resistant formulation withstands frequent exposure to oils and cleaning agents, maintaining joint strength over years of service.

Educational institutions specify the rod for its low‑odor extrusion and compliance with indoor air quality standards, ensuring a safe environment during installation.

Quality Control and Testing

Each batch undergoes melt flow index testing to confirm consistency with the client’s processing equipment. Diameter variation is measured using laser micrometry on a sample of 10 mm length.

Tensile specimens are cut from the rod, conditioned at 23 °C/50 % RH for 24 h, and tested according to ASTM D638. Results are recorded in a batch‑specific dossier.

Visual inspection under 10× magnification detects surface imperfections such as pits or streaks that could affect weld bead appearance.

Packaging and Shipping

Rods are wound onto corrosion‑resistant polypropylene spools with a protective inner wrap to prevent moisture ingress. Spools are placed in double‑wall corrugated cartons, each marked with handling instructions and batch identification.

For export, cartons are palletized and strapped, with optional heat‑shrink film to guard against humidity during transit. All packaging complies with ISPM 15 standards for wooden pallets when applicable.

Frequently Asked Questions

• Can the rod be supplied with a specific color match to our flooring? Yes, pigments can be blended during extrusion to achieve a Delta‑E < 2 relative to the customer’s sheet sample.
• What information is required for a quotation? Required details include target diameter, length per spool, additive requirements, annual volume, and preferred delivery terms.
• How is weld compatibility verified? We provide a small‑scale weld test coupon using the client’s flooring material and welding parameters; the coupon is evaluated for bead appearance and peel strength.
• What is the typical lead time for a custom order? Lead times range from 3 to 4 weeks after final specification approval, depending on additive availability and schedule.

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