HDPE Geomembrane (Dam Liner), Smooth, 0.3 mm
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What it is
A smooth black sheet of high-density polyethylene (HDPE), 0.3 mm or 300 microns thick, laid as a watertight barrier. Kitovu ordered this stock for under-slab damp proofing: the sheet goes on the ground before a concrete floor is cast, and the DPC and DPM page explains how it meets the damp-proof course in the walls. Sold as dam liner, the same kind of sheet also lines water pans, fish ponds, irrigation channels and reservoirs so that water stays in and does not soak into the ground. Material, thickness, smooth surface and black colour are what our product file confirms.
Everything else comes from data sheets of other makers. The UTD Geosynthetics data sheet for its 0.30 mm grade lists a density of 0.94 g/cm³, about 97.5% polyethylene with 2.5% carbon black, a strength at break of 11 N/mm width and puncture resistance of 144 N; these are similar products’ figures, not confirmed for this item. UTD gives GRI GM13 as its reference, but that specification starts at 0.75 mm, so figures for a 0.3 mm sheet are the maker’s own.
The roll size, 4 m × 100 m (400 m²), comes from Kitovu’s stock records. Brand and whether the resin is virgin or partly recycled are not in the file yet. The dam liner and HDPE geomembrane page explains thicknesses and where each is used.
| Parameter | Value |
|---|---|
| Material | HDPE (high density polyethylene) |
| Surface | Smooth |
| Thickness | 0.3 mm |
| Colour | Black |
| Roll width | 4 m |
| Roll length | 100 m |
| Roll area | 400 m² |
| Intended application (owner's order) | Under-slab damp proofing |
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Specs of similar products — not confirmed for this item
| Parameter | Similar products list |
|---|---|
| Density | 0.94 g/cm³ (ASTM D 1505) |
| Composition | approximately 97.5 % polyethylene, 2.5 % carbon black, trace antioxidants and heat stabilizers |
| Carbon black content (table) | 2.0 % (ASTM D 1603) |
| Strength at break | 11 N/mm width (ASTM D 6693, Type IV) |
| Strength at yield | 7 N/mm width (ASTM D 6693) |
| Elongation at break | 750 % |
| Elongation at yield | 17 % |
| Tear resistance | 45 N (ASTM D 1004) |
| Puncture resistance | 144 N (ASTM D 4833) |
| Oxidative induction time | > 100 minutes (ASTM D 3895) |
| Notched constant tensile load | 400 hrs (ASTM D 5397) |
| Melt index | ≤ 1.0 (ASTM D 1238, Cond. E) |
| UV resistance | «excellent resistance to UV radiation» |
| Reference standard | GRI GM13 (the standard starts at 0.75 mm; values for 0.3 mm are the manufacturer's) |
| Typical uses | Fish ponds, shrimp ponds, reservoirs, dams, canals, landfills, sewage plants, garden ponds |
How it is used
As a dam liner, the sheet lines a dug pond or water pan so that the water is held above it. A Lanhua listing for 0.3 mm and thicker HDPE names fish and shrimp ponds, reservoirs, dams, canals, landfills, sewage plants and garden ponds as uses; that list belongs to a similar product and is not confirmed for this item. UTD describes its own HDPE as having “excellent resistance to UV radiation”, which again is not confirmed for this liner.
Under the liner, data sheets of 200 g/m² non-woven geotextiles list protection of waterproofing membranes among their functions; the Non-Woven Needle-Punched Polypropylene Geotextile 200 g/m² is in stock for that layer. How panels are joined on site, by welding or tape, is not recorded in our file. Plan the layout around the 4 m roll width and 100 m length.
Also in stock
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