Questions & Answers
Polyethylene welding rods are made from: LDPE, HDPE, PE80, PE100, PE100-RC, LDPE.
DVS 2207-11 - Hot Gas Welding of Thermoplastics. This standard covers: uniform penetration, absence of material overheating, porosity, and weld strength. Applications include: repair of HDPE and LDPE products, chemical equipment manufacturing, air duct production, tank manufacturing, and welding of polyethylene sheets.
DVS 2203-2 - Welding Consumables for Thermoplastics. This standard defines requirements for welding rods made of polyethylene and other thermoplastics. It covers: material marking, dimensional tolerances, conformity to the base polymer, diameter uniformity, freedom from contamination, and material homogeneity.
DVS 2202-1 - Identification of Thermoplastics for Welding. This standard is used to select the correct welding rod. It defines the classification of thermoplastics, raw material identification, material compatibility, and marking of polyethylenes.
| Diameter, mm | Weight of 1 m, kg |
| 3 | 0,007 |
| 4 | 0,012 |
| 5 | 0,019 |
| 6 | 0,027 |
| 8 | 0,048 |
| 10 | 0,075 |
| 12 | 0,107 |
| Material type | Designation | Density, g/cm³ | Welding temperature, °C | Main Application |
| Low-density polyethylene | LDPE | 0,91–0,93 | 220–280 | Flexible products, films |
| Linear polyethylene | LLDPE | 0,915–0,940 | 230–280 | Films, tanks |
| High-density polyethylene | HDPE | 0,941–0,965 | 250–320 | Sheets, pipes, containers |
| PE80 | PE80 | 0,950–0,960 | 250–320 | Pressure pipelines |
| PE100 | PE100 | 0,955–0,965 | 260–330 | Gas and water pipes |
| PE100-RC | PE100-RC | 0,955–0,965 | 260–330 | High-reliability pipelines |