We compound black masterbatch from 10% to 65% carbon black, on PE, PP, wax and carrier-free systems. Below is the full grade range with the numbers buyers actually compare — carbon black content, ash, MFR, moisture and let-down — so you can shortlist in five minutes instead of emailing five suppliers.
Compare the same twelve grades in Spanish or Portuguese:
Typical values from our in-house QC testing. Use them to shortlist a grade — we confirm the contractual spec against your order, with a batch CoA on every shipment.
| Grade | Carbon black | Carrier system | Ash | MFR (190 °C) | Moisture | Typical use |
|---|---|---|---|---|---|---|
| CM50 | 47% ±2 | PE | <1% (unfilled) | >10 g/10 min (10 kg) | <0.50% | Stretch film, food packaging film, silage film, geomembrane |
| N4066 | 46% ±2 | PE | <1% (unfilled) | >10 g/10 min (21.6 kg) | <0.30% | High-hiding thin mulch film (<15 μm), protective bags, co-ex black layer |
| Y07B | 45% ±2 | Carrier-free + CaCO₃ | <10% | >1 g/10 min (21.6 kg) | <0.50% | PP / PE black compounding on twin-screw lines |
| AM4018 | 40% ±2 | PE + CaCO₃ | <19% | >10 g/10 min (21.6 kg) | <0.50% | Food-contact light-shielding packaging film |
| AM3910 | 40% ±2 | PE + CaCO₃ | <11% | >10 g/10 min (21.6 kg) | <0.50% | Food-contact tableware, meal boxes, cutlery |
| PP103 | 40% ±2 | PE (MFR-matched for PP) | <12% | >10 g/10 min (21.6 kg) | <0.50% | PP injection molding — appliance casing, household articles |
| PP30F | 30% ±2 | PP | <1% (unfilled) | >10 g/10 min (21.6 kg) | <0.50% | All-PP systems — GFPP, toughened PP, recycled PP |
| 508C | 13% ±2 | PE + CaCO₃ (~56%) | <69% | >1 g/10 min (21.6 kg) | <0.50% | Sewer & drainage pipe — cost-optimized black |
| 6045 | 10% ±2 | PE (unfilled) | <1% | >10 g/10 min (20 kg) | <0.50% | Water-supply pipe, trimming pre-colored PE compounds |
| H6045 | ~45% | PE (unfilled) | clean grade | on request | <0.50% | Pipe needing full UV protection from the masterbatch alone |
| HP wax grade | 50% | Polymer wax | none | 75.5 g/21.6 kg/10 min | 0.27% | Universal — PE, PP, PC, PS, ABS; ultra-high flow |
| SY-65 | 65% | Carrier-free | <10% (CB only) | on request | <0.50% | ABS / PS / PC engineering-resin modification |
Density <2.0 g/cm³ on all PE-based grades (HP wax grade measured 1.237 g/cm³). Recommended let-down 1–3% across the range; packaging 25 kg KP or PE bags. Values are typical QC reference data, not contractual specifications — we confirm the spec sheet against your order.
Not listed: N4032 (~41% general film), H1140, 2011XN, PP101J, PP108, E148J, 6005 and A104E (high-gloss) — plus custom loadings anywhere from 9% to 60%. Ask for any data sheet and we send it the same day. The technical data index has the TDS and SDS for every grade on this page.
Three columns do most of the decision-making. Here is what they mean in practice.
A part needing 2.0% carbon in the wall runs at 5% let-down with a 40% grade — but 10% with a 20% grade. Higher concentration means fewer kilograms per ton of product, and less carrier resin diluting your host polymer.
<1% ash = clean, unfilled grades for potable water, food contact and optical surfaces. 10–20% ash = CaCO₃-filled structural grades (stiffness, heat deflection, lower cost). 508C's <69% ash is deliberate: drainage pipe has no pressure or potable-water requirement, so filler does the economics.
>10 g/10 min grades blend into standard PE film and PP injection windows without line changes. The >1 grades (508C, Y07B) carry high mineral loading — adequate for pipe extrusion and compounding, where barrel length and screw geometry do the mixing. The wax-carrier grade's 75.5 MFI is for thin-wall, complex-cavity injection where flow front distribution decides color uniformity.
The grade most buyers start with, by end use:
N4066 for thin mulch film below 15 μm and full blackout at 1–1.5% let-down. CM50 for stretch, silage and heavy gauge. N4032 as the mid-range workhorse. Film grades →
6045 for potable water supply (unfilled, ash <1%). H6045 where the masterbatch must carry the full UV load. 508C for non-pressure sewer and drainage. Pipe grades →
PP103 for PP appliance casings and household articles. PP30F for all-PP, glass-filled or recycled PP systems where a PE carrier phase is unwanted. Injection grades →
AM4018 for light-shielding food packaging film (blocks light that drives rancidity and vitamin loss). AM3910 for tableware and meal boxes that survive dishwashers and microwave cycles. Food grades →
Y07B for PP/PE black compounding — no carrier phase, CaCO₃ for nucleation and cost. SY-65 at 65% for ABS/PS/PC. HP wax grade for five-resin universal use with measured mechanical data. High-load grades →
H6045 where the jacket has to carry the whole UV load on its own. CM50 for high-speed sheathing where surface finish and die build-up matter. Black masterbatch for cables →
Low-VOC, IATF 16949-process black masterbatch for interior trim — carrier and loading matched to your odor and fogging targets. Automotive grades →
What the spec sheet does not say — formulation logic behind the numbers.
Full opacity in LLDPE film above 20 μm is reached at 1–1.5% let-down, versus 3–5% for standard 25–30% grades. That is 15–20 kg of masterbatch per ton of film instead of 35–50 kg — a 40–60% cut in masterbatch volume, plus less carrier resin diluting the film's mechanicals. The <0.30% moisture ceiling matters on thin film: moisture becomes bubbles and streaks at low gauge. Full N4066 data sheet →
Many HDPE pipe compounds ship pre-colored at 2–2.5% carbon black. A 10% masterbatch at 1% let-down adds just 0.10% CB — enough to trim shade and coverage without overshooting the compound spec, and with the lowest possible masterbatch-derived mass in a potable-water system. Unfilled (ash <1%) because there is no room for mineral leachables in drinking water pipe. Full 6045 data sheet →
Everything else in the range runs on PE. PP30F exists for all-PP systems: GFPP, mineral-filled and toughened PP, and recycled PP, where a PE carrier forms a minor immiscible phase that can seed impact loss and color drift. Same-family carrier means a single-phase melt and no PP/PE interface to manage. Full PP30F data sheet →
The 50% wax-carrier grade is validated with real injection-molded test specimens (LG ABS121H, 2% let-down): impact resistance 17.41 kJ/m², elongation at break 39.04%, tensile strength 44.88 MPa. The wax carrier melts at 60–90 °C, coats carbon black particles during the shot, and lubricates the CB–polymer interface — which is why the compound stays ductile instead of embrittling. Full HP wax grade data sheet →
Sewer and drainage pipe does not have to carry drinking-water leachables, and it does not need high carbon loading for UV — it is buried. What it needs is blackness, stiffness and a low cost per finished ton. 508C puts roughly 56% CaCO₃ behind a 13% carbon black loading, so let-down can be pushed higher and the filler does part of the cost work the carbon black would otherwise do. Use it where the pipe standard allows mineral filler; for potable water, stay with the unfilled grades. Full 508C data sheet →
A carrier is resin you pay for twice: once in the masterbatch, and again as a diluent in your own compound. On a compounding line making PP or PE black, Y07B contributes essentially no carrier phase — the CaCO₃ is there for nucleation and cost, not as a carrier substitute. That keeps let-down predictable and the final compound's mechanicals closer to the neat resin. Full Y07B data sheet →
ABS, PS and PC are compounded at higher let-down ratios than polyolefins, so a 30–40% grade means shipping a lot of carrier into a system that does not want it. SY-65 concentrates the carbon black and stays carrier-free, so the engineering resin keeps its own mechanical profile. The trade-off is handling: high-loading grades need proper drying and feeding discipline on the line. Full SY-65 data sheet →
The chart covers standard grades. We compound custom concentrations on request — typically 9% to 60% carbon black, with carrier, ash target and MFR matched to your line. Recurring volume commitments get formulation development at the plant, not a reseller's "closest match".
Verifiable third-party testing. SGS test report numbers for this grade: SZXEC26003586001, SZXEC26003586003, SZXEC26003961401, SZXEC26004158601. Full reports with scans are published at /sgs-test-reports.html and can be verified directly with SGS.
Yes. Every grade has a full technical data sheet, and every production batch ships with a Certificate of Analysis covering carbon black content, ash, moisture and dispersion. Migration test reports and food-contact statements are available for the AM series on request.
Send the polymer, process (film / pipe / injection / compounding), target carbon black in the finished part, and any standard you work to (PE80/PE100, ISO 4427, food contact). We come back with a grade and a let-down — typically within one working day.
Trial and small batches are supported, not just full containers. Tell us the quantity and we quote both a trial lot and a production lot.
A line-trial sample can be arranged per RFQ — produced under the same compounding conditions as commercial batches. Pair it with our SGS test reports and certification documents.
Tell us your polymer, process and target carbon black in the part. We reply with a specific grade, let-down and firm factory quote.
Related reading: what actually drives a black masterbatch quote — the five variables behind the price per kilo.