Do you refer to composite one? The more transparent the geotextile, the better. You'd better choose filament composite geotextile within 600g for wasteyard, setting at the edge of the slope and enclosure.
Glossy surface is general product, coarse surface is special which has additional function based on glossy surface, that is , friction increasing. In non-flat places such as side slope, rough materials can enhance the slope stability. Smooth material friction force is small, causing the slope instability.
Hope it is easy to understand because it is not complicated at all. Actually, the dfference between matte and glossy membrane is the coarse surface, which is to increase friction. I f it is for refuse landfill, there are mainly three parts needed geomembrane for seepage-proof. reservoir bottom, side slope and cover (or closure). For "reservior bottom" , pave a layer of imported glossy geomembrane at the bottom of the landfill for horizontal seepage prevention. For side slope, use matte geomembrane around the landfill to increase friction because the side slope has vertical angle, that is, to make the geomembrane hung on the side slope. For cover or enclosure, use glossy membrane for horizontal seepage prevention to prevent rain pouring into the reservior and percolate increasing and isolate the garbage in landfill from the outside. It may not be comprehensive, but from practical experience coorperated with Canada Solmax Inc. Hope it's helpful.
