Why CO₂ Laser Is the Better Choice for White LSOH Cable Marking

2026-06-01

In the wire and cable industry, selecting the right Laser Technology is critical to achieving clear, permanent, and reliable marking results. Different cable materials react differently to laser energy, which means there is no single laser source suitable for every application.

Recently, Herten Laser conducted a series of marking tests on white LSOH (Low Smoke Zero Halogen) cable, a material widely used in public buildings, transportation systems, and other safety-critical applications. Due to its unique material properties, white LSOH is often one of the most challenging cable types for Laser Marking.

During our evaluation, both UV and fiber laser technologies were tested. However, neither solution produced satisfactory marking results. The contrast was insufficient, and the marking quality did not meet the requirements for clear product identification and long-term traceability.

To overcome this challenge, our engineering team performed additional testing using a CO₂ laser system. The results were significantly improved, producing clear, stable, and highly visible markings on the cable surface. The marking quality demonstrated excellent readability while maintaining the integrity of the cable jacket.

This case once again highlights an important principle in cable laser marking: the best marking solution depends on the cable material itself. Rather than recommending a single laser technology for all applications, Herten Laser evaluates each material individually and selects the most suitable laser source based on actual testing results.

Our application laboratory regularly tests a wide range of cable materials, including:

PVC

XLPE

TPU

LSOH / LSZH

Rubber cables

Special customized compounds

By combining material analysis with practical testing, we help cable manufacturers identify the most effective laser marking solution before equipment investment.

At Herten Laser, our goal is not simply to provide a laser Marking Machine, but to provide the right laser marking solution for every cable application.

If you would like to evaluate laser marking performance on your own cable materials, our technical team is available to perform sample testing and recommend the optimal solution for your production requirements.