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Carbon black in HDPE geomembranes: Getting the balance right
March 21st, 2025
Contributed by ATARFIL Carbon black plays a vital role in HDPE geomembranes, providing UV protection and preventing polymer degradation. But when it comes to performance, more isn’t always better, and less can be a red flag. Image courtesy of ATARFIL. At ATARFIL, we know that it’s not just about how much carbon black is added, […]
The challenge of geomembrane wild edge thickness
August 1st, 2023
Q: Over the past several years, we have seen a reduction in thickness of the weld edge (smooth edge) of textured geomembranes. This is presenting a challenge for installers when trying to achieve passing trial seams in the field prior to production welding. Destructive seam tests are passing, but just barely (10% above GM19a or […]