24 May 2023

Plastic Welding: When standards and quality are non-negotiable

Submitted by: Monique Holtzhausen
Plastic Welding: When standards and quality are non-negotiable

As the demand for plastic welding continues to rise in various industries, it is essential to emphasize the importance of quality and standards in plastic welding, particularly in plastic pipes and pipe infrastructure. Both the Southern African Plastic Pipe Manufacturers Association (SAPPMA) and Plastics SA, the umbrella body representing the South African plastics industry, recognize the need for high-quality welding techniques in ensuring the safety and durability of plastic pipelines.

Plastic welding involves joining two or more pieces of plastic using heat, pressure, or a combination of both. It is a preferred method for repairing and joining plastic pipes in various industries, including construction, mining, and agriculture, among others. Welding offers numerous benefits, such as providing a seamless and reliable joint, improving the pipe's strength and durability, and reducing the risk of leaks and failures.

“The quality of welding depends on the skill and expertise of the welder, the welding equipment, and the welding technique used. Poor welding practices can result in weak or faulty joints, leading to leaks, ruptures, and other structural failures. These failures can have catastrophic consequences, resulting in environmental pollution, property damage, and even loss of life. It is therefore crucial to ensure that plastic welding is performed to the highest quality and standards possible. This can be achieved through proper training, certification, and adherence to industry standards and regulations. Plastics SA is at the forefront of promoting high-quality plastic welding techniques through our various training programmes, which cover various thermoplastic welding methods,” says Kirtida Bhana, Head of Plastics SA’s Academy for Learning & Development.

Plastics SA provides welders with the necessary knowledge and skills to perform various plastic welding techniques, such as butt welding, electrofusion welding, and extrusion welding, among others. The programme also emphasizes the importance of adhering to industry standards and regulations.

“Plastics SA's training programmes have helped to improve the quality of plastic welding in South Africa, particularly in the construction and mining industries, where plastic pipes are widely used for various applications. By promoting high-quality welding practices, Plastics SA has contributed to the safety and reliability of plastic pipelines, reducing the risk of failures and environmental damage,” says Jan Venter, CEO of SAPPMA.

Venter emphasises that the importance of quality and standards in plastic welding cannot be overstated, particularly in the construction of plastic pipelines.

“The use of plastic pipes for infrastructure projects has increased significantly in recent years, thanks to the numerous benefits they offer, such as cost-effectiveness, ease of installation, and durability. However, the quality of the plastic welding used to join these pipes is crucial to their long-term performance and safety,” he explains.

In addition to Plastics SA's training programmes, the industry has various standards and regulations that must be adhered to in plastic welding. Adhering to these standards and regulations ensures that plastic welding is performed to the highest quality possible, reducing the risk of failures and environmental damage. It also promotes consistency and uniformity in plastic welding practices, making it easier for regulators and industry players to monitor and enforce compliance.

“Plastic welding is a critical process that requires high-quality and standardized techniques, particularly in the construction of plastic pipelines. By promoting high-quality welding practices, we can ensure the long-term performance and safety of plastic pipelines, reducing the risk of failures and environmental damage. We believe that the hands-on training provided by Plastics SA's Training Academy has contributed significantly to improving the quality of plastic welding in South Africa, ensuring the safety and reliability of plastic pipelines in various industries,” Venter concludes.