Real-World Conditions in the Lab

Claus Tønnesen Claus Tønnesen

A fantastic milestone for Primo in Mobile, Alabama US: A dream and ambition has become reality: Primo is now firmly established in the United States. Two years after the formal paperwork was completed, we have moved into our brand-new factory in Mobile, Alabama – designed for the future of extruded plastic profiles for subsea cables.

To make sure our plastic profiles stand the test of time, Primo uses advanced UV and weathering testing to recreate environmental conditions in a laboratory. Intense UV light, heat, moisture and temperature cycles are carefully controlled and repeated in a closed chamber. This allows us to obtain consistent, repeatable results that demonstrate how our products perform under harsh yet realistic conditions.

The simulator uses special lamps to reproduce the full spectrum of natural sunlight. This means our tests expose profiles to the same UV, visible, and infrared rays as real sunlight. At the same time, we control temperature and humidity inside the chamber, ensuring each test reflects real-world climate conditions in a reliable, reproducible way.

Plastic components in different coulours material lab

We can also test changing weather conditions, typically between intense UV exposure (simulating bright sunlight and heat) and water spray or humidity (simulating rain and dew). By repeating these cycles, we mimic the natural pattern of daytime sun followed by moisture at night, giving a realistic simulation of outdoor weather.

The durability of the profile is another critical factor and part of the testing environment: While natural outdoor exposure can take months or years, equivalent effects can typically be reproduced in a matter of days or weeks. Under standard test conditions, one year of outdoor exposure can be simulated in about one month.

This accelerated aging lets us see long-term effects like color fading, surface degradation, or loss of strength significantly faster. If a profile retains its color and strength after an extreme accelerated test, it gives us and our customers confidence that it will resist UV damage and harsh weather in the field.

This kind of weathering evaluation is highly valuable in any industry where products face outdoor or semi-outdoor conditions. For example, building and construction materials like windows, doors, gaskets, and automotive components (e.g. sealings, bumpers), and other outdoor equipment benefit from accelerated UV testing. By confirming that materials can endure prolonged sunlight, heat, rain, and humidity without significant degradation, we help our partners ensure their products meet long-term performance and color stability requirements in real-world use.

UV testing by Primo

A New Platform for Future Growth

Building a new production site on a new continent marks a game‑changing moment for the Primo Group. The Alabama facility expands our global footprint and creates a strategic platform for future development — not only for offshore applications but for industrial customers across North America.

This investment strengthens our ability to deliver:

  • High‑precision extrusion
  • Consistent quality across continents
  • Customer‑specific material solutions
  • Efficient, localised supply chains
  • Innovation partnerships supported by global expertise

A Milestone Marked in Mobile

Primo officially celebrated its new location in Mobile, Alabama, with a grand opening on March 25, marking the completion of the new extrusion facility and our formal settlement in the U.S.
The new facility is focused on manufacturing PVC profiles for subsea cables, a critical component in SLB OneSubsea's umbilical systems. 

About Primo

Headquartered in Copenhagen, Denmark, Primo A/S operates 12 sales and production sites across Europe, China and the USA.  Founded in 1959 by the Grunnet family, Primo specializes in custom-designed plastic profile solutions. The company employs around 1000  people and reported a turnover of 180  million EUR as of December 31, 2024.