Made at our plant in Huizhou since 2016. We compound black for drip tape and thin-wall irrigation line, where the wall is thin enough that a single carbon speck can plug an emitter.
Drip tape runs thin and fast, and the finished product has to survive seasons of direct sun over a field. That combination is what makes this grade different from a general-purpose black.
| Carrier resin | LDPE / LLDPE (HDPE blend on request) |
|---|---|
| Carbon black content | Set for UV life at your wall thickness and let-down |
| Standard grades | H6045 · 6045 — see the full TDS chart |
| Dispersion | Very fine — inclusions are the cause of plugged emitters |
| Melt flow (MFR) | Matched to your high-speed tape line |
| Filterability | Screen-pack friendly for long, uninterrupted runs |
| Certifications | ISO 9001 / 14001 / 45001 |
Give us your wall thickness, line speed and target field life — we will propose a loading for you to trial on your line.
Tape that lies in the sun for a season or more needs carbon loaded for UV, not just for appearance.
Plugged emitters usually trace back to agglomerates. We compound and filter to keep them out.
No trading-company layer. A firm factory quote and a faster answer on price and lead time.
Run a trial on your own tape line before you commit. We keep your spec confidential.
Typical irrigation applications our black masterbatch is compounded for:
Seasonal and multi-season tape for row crops.
Thicker-walled line for orchards and permanent installations.
LDPE / LLDPE main and sub-main line.
Moulded parts that must match the line color.
Irrigation tape is thin-walled, continuously extruded and lives outdoors or underground for years. The masterbatch has to do two jobs at once: make the wall opaque to UV, and stay dimensionally consistent enough that emitter performance does not drift.
| Product | Typical wall | Typical carbon black in wall | Priority |
|---|---|---|---|
| Thin-wall drip tape | 0.1–0.2 mm | 2–2.5% | Dispersion at gauge, gauge consistency |
| Medium-wall drip line | 0.2–0.4 mm | 2–2.5% | UV lifetime, mechanical retention |
| Heavy-wall dripper line | 0.4–1.0 mm | 2–2.5% | Long-service weathering |
| Micro-sprinkler tubing | varies | 2–3% | Flexibility plus weathering |
The pipe and conduit grade page covers the same carbon-for-UV logic at heavier walls, and carbon black loading for UV service explains why the 2–2.5% window exists.
Emitter plugging is usually traced to carbon agglomerates or contamination. We compound for fine dispersion and filterability, and we can share filter-pressure data for the lot.
It comes down to UV dose and wall thickness. Tell us the crop cycle and wall and we will propose a loading for each case.
Trial lots start at 1 ton. Most tape lines prove a grade over a full production shift before committing, so we size the sample lot to that.
Typically 5–10 days to most markets, with let-down guidance for your tape line.
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.
UV stability for one or more seasons is a loading decision made at the dosing point. This is that line.
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.