Mar 21, 2018 · HDPE Geocell SLOPE Protection Features. (1) Advanced technology, Fast welding speed, Neat welding, Weld solid. (3) High tensile strength can reach 0.57kn/5cm (1mm thick), and the tensile strength can reach 1KN/20cm. (4) Resistant to aging, long service time. The Philippines customer searched HDPE geocell from BPM Geosynthetics website.