Made at our plant in Huizhou since 2016. We compound geomembrane black to the carbon content and dispersion level the liner standards call for — because on a lining job, a speck can turn into a leak path.
Geomembrane standards are unusually explicit about carbon black: content, dispersion and even the particle type. We build the grade around those numbers rather than around a shade of black.
| Carrier resin | HDPE (LLDPE / LDPE blend on request) |
|---|---|
| Carbon black content | Set to the level your liner standard requires, commonly in the low-percent range at final film |
| Standard grades | CM50 · H6045 — see the full TDS chart |
| Dispersion | Tight and repeatable — carbon agglomerates are leak-path starters |
| Melt flow (MFR) | Matched to your flat-die or blown liner extrusion |
| Ash / screen pack | Controlled for long continuous runs without screen changes |
| Certifications | ISO 9001 / 14001 / 45001 |
Send us the standard your liner has to meet and your final thickness — we will confirm the grade for you to trial on your own line.
We set carbon content and dispersion to the number your liner spec calls for, not to a visual match.
Dispersed carbon means fewer inclusions, which is what weld and leak testing is really looking for.
No trading-company layer. A firm factory quote and a faster, more technical answer.
Run a trial on your own line and test it before you commit. We keep your spec confidential.
Typical liner applications our black masterbatch is compounded for:
Aquaculture, irrigation and decorative ponds exposed to sunlight.
Bottom liners and closure caps for municipal and industrial sites.
Large-area pads where long outdoor life matters most.
Water conveyance and containment linings.
A geomembrane is specified for decades of service in contact with soil, leachate or water. Three things decide whether the black survives that:
| Use | Typical sheet thickness | Note |
|---|---|---|
| Exposed pond / landfill cap liner | 1.0–2.0 mm | UV is the driver — carbon at 2–2.5% |
| Covered liner | 1.0–2.0 mm | Less UV, more mechanical and chemical |
| Tunnel / drainage membrane | varies | Flexibility plus weathering |
| Textured liner | 1.5–2.5 mm | Dispersion under higher shear |
The pipe grade page covers the same carbon-for-UV logic at pipe wall thicknesses, and carbon black loading for UV service explains the working window.
Yes. Tell us which standard the liner has to comply with and the final film thickness, and we will set the carbon content and let-down to hit it. We will say so plainly if we cannot meet a clause.
Through the compounding route, filter-pressure testing and lot records. Carbon agglomerates are the main reason liner welds and leak tests fail, so this is the parameter we watch closest.
Yes. Trial lots start at 1 ton per specification. Liner producers usually run a trial, test it against their own specification, then place the production order.
Typically 5–10 days to most markets, with the lot record and test data your QA team will ask for.
Tell us what you are running and how much you need. We reply with a firm factory quote — and, if you want to test before committing, a free 1–5 kg sample compounded on your own carrier resin. No obligation.
Long service life outdoors starts with dispersion you can measure. This is the line that produces it.
Full factory tour —2:50 on YouTube
Two minutes and fifty seconds inside the Huizhou plant: raw-material dosing, compounding, pelletising, packing and the QC laboratory.
Watch the full tour on YouTube →
Factory-direct. Annual capacity 60,000 t/yr. Certification details on the certifications page.