Stable Dispersion Black Masterbatch Wholesale

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Stable Dispersion Black Masterbatch

Stable Dispersion Black Masterbatch

Stable Dispersion Black Masterbatch is a functional material based on polyethylene (PE) with added carbon black and a small amount of ash. Its carbon black concentration is approximately 41% ± 2%, providing excellent coloring and high hiding power in plastic products while maintaining stable dispersion across a variety of processing techniques. The optimized carbon black content not only imparts a deep black appearance to the product but also improves its light and weather resistance. The ash content is less than 1%, minimizing the impact of impurities on the physical properties of plastic products during processing and application, thereby enhancing the overall stability of the finished product.
The product is supplied in 25kg bags, with either KP or PE bags available for easy transportation and handling. It is recommended that the masterbatch be stored in a dry, cool warehouse, away from direct sunlight and rain, to maintain its stable performance and performance. Overall, Stable Dispersion Black Masterbatch offers excellent application value, balancing appearance, process compatibility, and ease of use, providing a reliable color solution for plastic product production.

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Parameter

# BLACK MASTERBATCH N4032

N4032 is made of PE. Carbon black concentration is around 41%.

Applicable for blowing film,pipe extrusion,injection,etc

Ingredients Carbon Black: 41%±2
ASH: <1%
Usage Mixed with materials.
Dosage suggested 1-3%.
Technical Index Density: <2.0g/cm3
Melting Speed:>10g/10min(21.6kg/190C)
Moisture:<0.30%
Package 25kg per bag, KP bag or PE bag
Storage Place in dry and cool warehouse,avoid sun shine and raining.
Note The above index is based on the testing result for reference only, not as the specific index.
N4032 — At a Glance

Stable Dispersion, Measured in Numbers

Key technical figures from batch production records

41% Carbon Black Content ±2% batch tolerance
1–3% Recommended Dosage Full coloring at minimal addition
<0.30% Moisture Content Prevents bubble defects at extruder
<1% Ash Content Minimizes die deposit accumulation
Performance Profile

What "Stable Dispersion" Means in Practice

Six measurable dimensions that matter on an agricultural film line

Dispersion Consistency Across Width 95/100
Carbon black particles are wet-dispersed before compounding to break agglomerates at nanoscale. The result is a uniform black across the entire film width — no streaks, no color variation at film edges.
UV Absorption for Outdoor Film 92/100
At 41% CB concentration, N4032 delivers broad UV blocking from 280–400 nm. Agricultural mulch film coloured at 2% achieves consistent soil warming performance and sustained light exclusion across a full growing season.
Processing Stability (Blown Film) 96/100
MFI above 10 g/10 min at 190 °C keeps the melt pressure predictable. Blown film lines maintain stable bubble geometry and gauge uniformity during continuous multi-shift production runs.
PE Carrier Compatibility 98/100
PE carrier is fully miscible with LDPE, LLDPE, and mLLDPE without interface separation. No bleed-out observed under agricultural UV exposure or thermal cycling conditions typical of mulch film service.
Mechanical Integrity of Finished Film 91/100
At 1–3% addition, tensile strength and elongation at break of the host LLDPE film remain within ±5% of uncoloured baseline. Film layflat and wind-up behaviour are unaffected during high-speed extrusion.
Low-Ash Purity 99/100
Ash below 1% means inorganic impurity levels are minimal. This directly reduces die-lip deposit frequency and extends the cleaning interval between production runs on narrow-gap agricultural film dies.
Where N4032 Is Used

Primary Application Scenarios

Production-verified end uses for blown film and extrusion lines

Agriculture

Mulch Film

N4032's stable dispersion eliminates pinholes and thin spots in single-layer mulch film. Consistent carbon black distribution ensures even soil temperature management and weed suppression across the full film area.

Dosage: 2.0–2.5%  |  Film gauge: 8–25 μm
Agriculture

Greenhouse Cover Film

Used as the black inner layer in multi-layer greenhouse films to block diffuse light transmission. The low moisture content prevents surface condensation defects during blown film co-extrusion.

Dosage: 1.5–2.0%  |  Structure: 3–5 layer coex
Silage

Silage & Bale Wrap

High CB concentration at low dosage keeps total additive volume down, reducing the risk of cling-layer interference in oxygen-barrier silage films. Stable dispersion supports crack-free stretching at the baling machine.

Dosage: 2.0–3.0%  |  Stretch ratio: Compatible with 250–300%
Pipe Extrusion

Irrigation Drip Tape

Applied in thin-walled PE drip tape extrusion where uniform wall thickness is critical. The consistent MFI ensures stable extrusion pressure and reduces the incidence of weld-line weaknesses at emitter positions.

Dosage: 1.5–2.5%  |  Wall: 0.1–0.4 mm
Blown Film

Black Agricultural Packaging

Used in produce and storage bags for agricultural products requiring light blocking. The 41% CB loading delivers full opacity at 2% without requiring additional opacifying agents that could interfere with print adhesion.

Dosage: 2.0–2.5%  |  Opacity: Full blackout at ≥20 μm
Injection

Agricultural Equipment Components

Suitable for injection moulding of drip irrigation fittings, plug trays, and crop support components. The stable dispersion prevents flow-mark and gate-blush defects common in thin-section agricultural parts.

Dosage: 1.0–2.0%  |  Process: Injection, 190–220 °C
Technical Comparison

N4032 vs. Conventional 25–35% Agricultural Black Masterbatch

Side-by-side parameter comparison for procurement evaluation

Parameter E-LUCK N4032 Conventional Grade Production Impact
Carbon Black Content 41% (±2%) 25–35% Lower dosage per ton of film resin
Addition Rate 1–3% 3–6% Reduces CB cost per kg of finished film
Dispersion Method Nano wet dispersion Dry blending Eliminates agglomerate-caused pinholes
Moisture Content <0.30% 0.5–1.0% Prevents blow-out defects in thin film
Ash Content <1% 1–3% Reduces die-tip deposits and cleaning stops
MFI (190°C / 21.6 kg) >10 g/10 min 5–8 g/10 min Supports higher line speed without pressure spike
Agricultural Film Suitability ✓ Optimised ~ General use Formulated specifically for thin PE film
Multi-process Compatible ✓ Film / Pipe / Injection ~ Usually film only Reduces SKU count for mixed-product factories
How N4032 Is Manufactured

Five-Stage Production Process

From raw carbon black selection to QC-approved pellets

01
CB Selection
Medium-structure carbon black qualified for agricultural film applications; lot tested for structure and surface area before acceptance
02
Wet Pre-dispersion
Surface-active dispersant wets CB agglomerates before compounding; reduces primary particle cluster size to sub-micron level
03
Twin-Screw Compounding
Co-rotating extruder applies optimised shear and temperature profile to fully incorporate CB into PE carrier melt
04
Pelletizing
Water-ring pelletizer produces uniform cylindrical pellets; metal detection screen rejects any contaminated output
05
QC Release
MFI, ash, moisture, and optical dispersion grade verified per batch before CoA issuance and packaging approval
Application Reference

Dosage Guide & Processing Recommendations

Starting-point settings — final parameters depend on resin grade and line configuration

Recommended Dosage by End Use
Agricultural Mulch Film (LLDPE)2.0–2.5%
Greenhouse Cover Film (coex layer)1.5–2.0%
Silage & Bale Wrap2.0–3.0%
PE Drip Tape (thin-wall)1.5–2.5%
Agricultural Packaging Bags2.0–2.5%
Injection Parts (irrigation fittings)1.0–2.0%
Processing Notes
Temp Range160–220 °C for PE-based lines. Sustained temperatures above 230 °C may cause carrier degradation.
Pre-dryingNot required under normal storage. Pre-dry at 70 °C for 2 h if bags have been exposed to humidity above 80% RH.
BlendingTumble-blend with base resin 3–5 min before hopper feeding. Gravimetric dosing recommended at throughput above 800 kg/h.
Film GaugeFor films below 15 μm, test at the lower end of the dosage range first to confirm opacity before committing to full production settings.
PurgingWhen switching from N4032 to natural or light-coloured resins, purge with HDPE compound for 10–12 min to clear residual pigment from screw flights.
Technical FAQ

Questions Asked Before Ordering N4032

Answers from the E-LUCK compounding engineering team

Why is "stable dispersion" specifically important for agricultural film compared to other applications?
Agricultural film is typically produced at gauges of 8–25 μm — thinner than most industrial films. At these gauges, any undispersed carbon black agglomerate becomes a stress concentrator that initiates pinhole formation or tear propagation during field deployment. Stable, nanoscale dispersion is not just a quality specification — it is directly linked to whether the film survives a full growing season without mechanical failure.
Can N4032 be used in co-extruded structures alongside white or clear layers?
Yes. N4032 is designed for use as the black layer in 3- to 5-layer co-extruded agricultural film structures. The PE carrier is compatible with standard LDPE and LLDPE co-extrusion resins. The key precaution is to confirm die-block geometry and layer thickness ratio during trial, as thin black layers below 3 μm may require slightly elevated dosage to maintain full opacity.
What carbon black grade is used in N4032, and why does it matter for agricultural use?
N4032 uses a medium-structure carbon black selected for a balance of UV absorption efficiency and dispersion processability. High-structure CB grades (very high surface area) can improve UV performance but are significantly harder to disperse at high concentrations. The grade used in N4032 is optimised for agricultural film applications where both UV durability and processing reliability over extended production campaigns are required.
Does N4032 affect the cling performance of silage or stretch film made with it?
At the recommended 2–3% addition rate, N4032 does not introduce components that actively reduce or increase cling. The PE carrier is inert to PIB (polyisobutylene) or tackifier systems typically used in cling layers. However, if cling performance is critical to your formulation, we recommend running a compatibility trial with your specific tackifier additive package before full production.
What is the minimum order quantity, and can N4032 be customised?
N4032 is produced in standard 25 kg bags (KP or PE bag options). For volume enquiries and lead time, contact E-LUCK's sales team directly with your estimated monthly requirement. Custom variants with adjusted CB concentration, different PE carrier MFI, or additional UV stabiliser packages are available through E-LUCK's custom manufacturing programme for buyers with specific formulation requirements.
Direct from the Manufacturer

What Factory-Direct Supply Means for Agricultural Film Producers

Six operational advantages when ordering from the production source

01
Batch-Level CoA Documentation
Every shipment includes a Certificate of Analysis covering CB content, MFI, moisture, ash, and dispersion grade — all traceable to the specific production batch that filled your bags.
02
Agricultural Film Process Knowledge
E-LUCK's compounding engineers have direct experience with blown film line requirements for thin agricultural film — including gauge targets, bubble stability, and die geometry considerations.
03
Consistent Raw Material Source
Carbon black grade and PE carrier resin are sourced under long-term supply agreements. No commodity substitution occurs between batches without customer notification and re-qualification.
04
Pre-Production Sample Availability
Qualification samples are produced under the same compounding conditions as commercial runs. What you test is what ships — no difference in process parameters between sample and volume orders.
05
Custom Formulation for Agricultural Grades
Modified CB concentrations, carrier MFI adjustments, or the addition of UV stabiliser packages for extended-season outdoor film performance can be developed through E-LUCK's formulation team.
06
Packaging for Tropical Climates
KP bag option adds a moisture barrier layer suited for shipment to Southeast Asia, West Africa, and other high-humidity destinations where PE bag packaging may not provide adequate protection during transit.
About Us
E-LUCK .
E-LUCK .

As China Stable Dispersion Black Masterbatch Factory and China Stable Dispersion Black Masterbatch Suppliers, E-LUCK is a professional manufacturer and solution provider specializing in black masterbatch for industrial applications. Since our founding, we have remained committed to the core values of precision, consistency, and material intelligence, integrating advanced dispersion technology with rigorous quality systems to meet the increasingly complex demands of modern polymer processing. From pipes and fittings to automotive parts, from consumer electronics to packaging films, our black masterbatches play a quiet yet critical role in enhancing product appearance, performance, and lifecycle for a wide range of downstream industries.

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