Weldheat Equipment

leister training

Building Skilled Welders for Better Water Tank Projects

Leister Process Heat Solution

At Weldheat Equipment (M) Sdn Bhd, we are committed to enhancing the skills and knowledge of geomembrane welders through comprehensive training programs. Recently, we conducted a specialized training session focused on water tank applications using Leister extrusion welding equipment and Geotrust HDPE geomembrane materials.

The objective of this training was to provide participants with both theoretical knowledge and practical hands-on experience to improve welding quality, reduce leakage issues, and increase overall competency in geomembrane installation projects.

Understanding the Leister Extruder

Before the practical session began, participants were introduced to the fundamentals of the

Leister Extruder, including:

Working principles of extrusion welding.
Components and functions of the extruder.
Proper machine setup and operation.
Temperature and welding parameter adjustments.
Maintenance and safety procedures.

Understanding the equipment is essential to achieving consistent weld quality and ensuring reliable performance during field applications.

Characteristics of HDPE Geomembrane

The training also covered the key properties and characteristics of Geotrust HDPE

geomembrane, including:

High chemical resistance.
Excellent UV and weather resistance.
Superior durability and long service life.
Flexibility and weldability.
Applications in water tanks, ponds, landfills, and containment systems.

Participants learned how material properties can affect welding performance and long-term project reliability.

leister training

Hands-On Welding Practice

Following the classroom session, trainees moved on to practical welding exercises using

Leister extrusion welders on HDPE geomembrane samples.

The hands-on training included:
Surface preparation techniques.
Correct welding procedures.
Extrusion bead application.
Welding speed and temperature control.
Common welding defects and troubleshooting methods.

This practical approach allowed participants to gain real-world experience and build confidence in handling actual project conditions.

Quality Control: Peel Test and Shear Test


To ensure weld integrity, participants were trained on post-weld quality inspection methods.

Peel Test
The peel test evaluates the bonding strength between welded geomembrane sheets and helps identify fusion quality issues.

Shear Test
The shear test measures the mechanical strength of the welded joint under load conditions, ensuring compliance with industry standards.

By performing these tests, welders gained a better understanding of quality requirements and learned how to verify the reliability of their welds before project completion.

Training Objectives

The main objectives of this program were to:

• Improve welder competency and technical knowledge.
• Provide practical hands-on welding experience.
• Reduce leakage and welding defects on site.
• Enhance workmanship quality and project reliability.
• Increase confidence in operating Leister welding equipment.
• Promote best practices in geomembrane installation.Well-trained welders contribute significantly to the success of water containment projects by ensuring stronger welds and minimizing costly repairs.

Continuous Training and Product Development

At Weldheat Equipment (M) Sdn Bhd, we regularly conduct internal training programs to keep our team and customers updated with the latest welding technologies and industry best practices.

In addition to training, we also organize product launches and technical workshops to introduce innovative solutions from Leister and our industry partners.

We believe that continuous learning and practical experience are key factors in delivering successful geomembrane and water tank projects.

Join Us for Future Training Programs

Whether you are a contractor, installer, engineer, or project manager, our training programs are designed to help you improve your skills and achieve better project results.

We look forward to welcoming you to our upcoming training sessions and product launch events.

For more information about our training programs, Leister welding equipment, and geomembrane solutions, please contact Weldheat Equipment (M) Sdn Bhd.

Together, we can improve welding quality, reduce leakage risks, and build more reliable water containment systems.