Trusted

Credentials, Testing & Certifications

At Plastek Werks, we believe that the quality of a weld starts with the quality of the welder. That’s why we invest heavily in advanced training, routine testing, and strict adherence to international standards. With over 30 years of field-proven performance, our welders are among the most rigorously trained in the industry—ensuring reliable, long-term results in every application.

A Commitment to Quality

Custom plastic tanks

We don’t just meet the standards—we help shape them. Our welders are tested in-house to meet or exceed ASTM, DVS, and AWS requirements. This commitment protects your investment in thermoplastics and ensures every weld we perform can stand up to the most demanding conditions.

  • In-house weld testing to ASTM standards
  • DVS (German Welding Society) qualifications
  • AWS (American Welding Society) and ANSI compliance
  • Routine technician evaluations: DVS, ASTM C1147, AWS B2.4
  • OSHA safety compliance and confined space qualified
  • Manufacturer-specific certifications
  • In-house weld inspections using MTS 810 Tensile Tester

Expert Witness Services

With decades of experience in plastic welding, fabrication, and industry standards, Plastek Werks is qualified to serve as an expert witness in legal proceedings. Our team has provided technical insight and testimony in depositions and trials involving plastic materials, fabrication practices, and weld integrity.

Our Team Credentials

Our staff includes certified professionals who lead, inspect, and educate within the plastic welding industry:

  • 2 Senior Plastic Welding Educators
  • 2 Senior Plastic Welding Inspectors
  • 2 Associate Plastic Welding Educators
  • 4 Associate Plastic Welding Inspectors
  • 1 Additional Associate Plastic Welding Educator
  • 4 DVS Certified Plastic Welders
  • Numerous Company-Certified Plastic Welders

Why It Matters

High-quality welds reduce the risk of failure, lower maintenance costs, and extend the life of your systems. Our credentials ensure that every weld is built for durability, safety, and performance—especially in critical chemical, structural, or environmental applications.