Key Benefits of WELDCEL™ in Electrode Coatings
High Arc Voltage Performance:
WELDCEL™ supports elevated arc voltage operation, enabling high deposition rates and deep weld penetration — essential for root pass welding and pipeline applications.
Sound Gas Shielding:
During combustion, WELDCEL™ generates carbon dioxide as an inert shielding gas, protecting the weld zone from oxidation and delivering consistently clean, sound welds with minimal porosity.
Exceptional Weld Penetration:
Cellulose ensures significant material melting during welding, creating high penetration welds ideal for root passes and single-side welding in pipelines and structural applications.
Minimal Slag Formation:
Cellulosic coatings produce less slag than basic or rutile coatings because the organic material burns completely — making slag removal fast and easy, and the electrode suitable for all welding positions.
Vertical-Down Welding Capability:
WELDCEL™-based cellulosic electrodes are the industry standard for vertical-down (downhill) welding and circumferential pipeline welds — where fast travel speed, arc control, and penetration are critical.
Improved Arc Characteristics:
WELDCEL™ contributes to smooth, stable arc behaviour and favourable material transfer characteristics, reducing spatter and improving weld bead appearance.
Formulation Flexibility:
Compatible with mixed electrode formulations (cellulose-rutile blends and others), WELDCEL™ positively influences the melting properties and material transfer of the overall electrode system.
| Parameters | Specifications |
|---|---|
| Description | White or Granular, White or almost White Powder |
| Alpha Cellulose % by mass | NLT 80 |
| Degree of Polymerization | 200 – 700 |
| Moisture Content % by mass | NMT 7.0 |
| Ash % by mass (on dry basis) | NMT 5.0 |
| pH | 6.0 to 8.0 |
| Bulk density, g/cc | 0.10 – 0.50* |
| *In-house Specifications* Particle Size % Passing 100 Mesh | NLT 70* |
Re-evaluation Date: Four (4) years from date of manufacture, if storage conditions stated above are observed.
* Can be tailored to complement desired performance.
When using our products, please note that the processing conditions and declaration options depend on the specific composition and positioning of the end product and must, in particular cases, also be assessed in due consideration of product and country-specific regulations.
| Type | Size |
|---|---|
| HDPE Bags | 25 Kg |
| HDPE Bags | 20 Kg |
| Paper Bags | 25 Kg |
| Paper Bags | 20 Kg |
| FIBC | 400 Kg |
| Container | Palletized | Non-Palletized |
|---|---|---|
| 20 Ft. (Approx Wt.) | 10,000 Kg | 12,000 Kg |
| 40 Ft. (Approx Wt.) | 20,000 Kg | 24,000 Kg |
Frequently Asked Questions
What is cellulose used for in welding electrodes?
Cellulose is the primary functional constituent in cellulosic welding electrode coatings, comprising 30–40% of the coating weight. During welding, the cellulose burns and generates carbon dioxide and hydrogen gases that form a protective inert shielding atmosphere around the molten weld pool, preventing oxidation. Cellulosic coatings also produce minimal slag and enable deep weld penetration — making them the preferred choice for vertical-down and pipeline root pass welding.
What makes cellulosic electrodes suitable for pipeline welding?
Cellulosic electrodes are uniquely suited to pipeline circumferential and vertical-down welding because they deliver high arc voltage, deep penetration into the base metal, fast travel speed, and excellent gas shielding — all in a single electrode system. The minimal slag production means welders can work quickly without extensive inter-pass cleaning, which is critical in field pipeline construction.
What is the difference between cellulosic (C) and rutile-cellulose (R(C)) electrodes?
Pure cellulosic (C-type) electrodes contain cellulose as the dominant coating component, delivering maximum penetration and gas shielding — used primarily for pipeline root pass and vertical-down welding. Rutile-cellulose (R(C)) electrodes blend cellulose with rutile (TiO₂), moderating the arc characteristics for a balance of penetration, arc stability, and weld appearance — suitable for broader structural welding applications.
