10/12/2026
Blown VS Cast HDPE Geomembrane
Same 1.5mm virgin HDPE geomembrane, but different surface: matte or glossy?
👉 Two different manufacturing methods!
✅ Blown Film
Matte finish · Wide roll up to 6–8m · Integral rough texture
Great for high‑standard projects: landfill, reservoir, oil containment
✅ Cast Film
Shiny glossy surface · Cost‑effective
Fit for fish ponds & small water storage projects
⚠️ Engineering tips
✅ Wider roll = fewer welds = less leakage risk
✅ Slope projects: use integrally textured geomembrane. Post‑spray texture easily peels!
✅ Simple test: scratch the rough surface. If particles fall off, avoid it.
Important: Production method cannot directly define quality.
Quality relies on raw material, formula and factory quality control.
Contact us for geomembrane specification selection for your project!