High Hiding Black Concentrated Masterbatch Wholesale

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High Hiding Black Concentrated Masterbatch

High Hiding Black Concentrated Masterbatch

This high-hiding black concentrate masterbatch is a functional masterbatch based on a polyethylene (PE) base resin with a high percentage of carbon black and strictly controlled impurities. Its carbon black concentration is approximately 46% ± 2%, providing excellent hiding power and a stable black color during plastic product processing. It is suitable for a variety of production processes, including blown film, pipe extrusion, and injection molding. Compared to conventional carbon black masterbatches, this product achieves a higher depth of color at a lower addition level, helping to reduce overall material costs.
This masterbatch has an ash content of less than 1%, minimizing the impact of impurities on product performance during processing and molding. Its technical specifications include a density of less than 2.0 g/cm³, a melt rate greater than 10 g/10 min (21.6 kg/190°C), and a moisture content below 0.30%. These characteristics ensure stability during processing and avoid production issues caused by moisture or insufficient melt flow.

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Parameter

#BLACK MASTERBATCH N4O66

EN4066 is made of PE. Carbon black concentration is around 46%.
Applicable for blowing film, pipe extrusion,injection, etc.

Ingredients Carbon Black: 46%±2
ASH: <1%
Usage Mixed with materials.
Dosage suggested 1-3%.
Technical Index Density: <2.0g/cm3
Melting Speed: >10g/10min(21.6kg/190℃)
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.
N4066 — Technical Overview

High Hiding Power, Defined by Concentration

Specification figures from production batch records

46% Carbon Black Content ±2% batch tolerance
1–3% Recommended Dosage Full hiding at lower addition vs standard grade
<0.30% Moisture Content Critical for bubble-free film surface
<2.0 g/cm³ Density Lightweight for consistent dosing
<1% Ash Content Minimised inorganic impurity load
What "High Hiding" Actually Means

Opacity Achievement Compared Across Carbon Black Concentrations

Relative hiding power at equivalent dosage levels in LLDPE blown film

N4066 — 46% Carbon Black
At 1.0% dosage — Opacity achieved Full blackout
At 1.5% dosage — Jet black depth Excellent
Die deposit risk after 8 h run Minimal
At 46% CB concentration, full opacity is typically achieved at dosage levels as low as 1–1.5% in film gauges above 20 μm. This means lower total masterbatch consumption per ton of finished product.
Standard Grade — 25–30% Carbon Black
At 1.0% dosage — Opacity achieved Partial
At 1.5% dosage — Jet black depth Moderate
Die deposit risk after 8 h run Elevated
Standard grades typically require 3–5% dosage to achieve equivalent opacity, increasing total masterbatch usage per ton and potentially introducing more carrier resin into the host film matrix.
Economic Advantage

Higher Concentration, Lower Cost per Kilogram of Coloured Film

Illustrative comparison — actual savings depend on your resin price and MB unit cost

Masterbatch used per tonne of LLDPE film
15–20 kg
N4066 at 1.5–2.0% dosage
Masterbatch used per tonne (standard grade)
35–50 kg
Typical 25–30% grade at 3.5–5.0% dosage
Typical reduction in MB volume per tonne
40–60%
Less masterbatch consumed for same output
Target Applications

Where High Hiding Power Creates a Production Advantage

Processes where full opacity at low dosage directly reduces cost or improves output quality

Agricultural Film

Thin Mulch Film (<15 μm)

Achieving full light blocking in very thin mulch film is the primary challenge N4066 was designed to address. At 46% CB, the masterbatch reaches weed-suppression opacity thresholds in film as thin as 10 μm, where standard grades fail to block adequately without over-dosing.

Dosage: 1.5–2.0%  |  Key benefit: Opacity at minimal gauge
Blown Film

Black Protective Packaging

Courier bags, opaque liner bags, and light-exclusion packaging all require complete UV and visible light blocking. N4066 achieves this at lower addition rates than standard grades, keeping the film's seal strength and print surface characteristics unaffected by excess carrier resin.

Dosage: 1.5–2.5%  |  Key benefit: Surface quality preserved
Pipe Extrusion

Black PE Pipe

In PE pipe for water supply and irrigation, carbon black content in the pipe wall directly affects UV stabilisation longevity. N4066's high CB concentration achieves the 2–2.5% CB target in the finished pipe wall at a masterbatch addition of approximately 5% or less — ensuring compliance with pipe UV durability standards.

Dosage: 2.0–3.0%  |  Key benefit: UV durability in pipe wall
Co-extrusion

Black Functional Layer

In 5- to 7-layer co-extruded structures, the black light-barrier layer is often thin (10–20% of total structure). N4066's high concentration ensures that even a thin functional layer achieves full opacity without requiring a thicker black layer that would disrupt the overall film balance.

Dosage: 1.5–2.0% in layer  |  Key benefit: Thin layer fully opaque
Injection Moulding

Black Moulded Parts

For moulded parts requiring deep, uniform black colour without flow marks or surface gloss variation, N4066's fine CB dispersion produces a consistent jet black surface at 1–2% addition. The low ash content eliminates the silver streak risk that is common with high-filler standard grades.

Dosage: 1.0–2.0%  |  Key benefit: No silver streak, clean surface
Sheet Extrusion

Black Thermoforming Sheet

Thermoforming sheet for food trays, industrial trays, and protective covers requires surface-consistent black without particle agglomeration that would cause surface roughness or print adhesion failures downstream. N4066's fine dispersion satisfies surface quality requirements across gauge ranges from 0.3 to 3 mm.

Dosage: 1.5–2.5%  |  Key benefit: Print-ready surface, no agglomerates
Specification Comparison

N4066 vs. N4032 vs. Standard Grade — Three-Way Reference

Helps buyers select the right grade for their specific process requirements

Parameter N4066 (this grade) N4032 (mid-range) Standard 25–30% Key Consideration
Carbon Black % ~46% ~41% 25–30% Higher = lower dosage needed
Dosage to Full Opacity 1.0–1.5% 1.5–2.0% 3.0–5.0% Lower dosage = lower MB cost per ton of film
Moisture <0.30% <0.30% 0.5–1.0% Low moisture prevents surface defects
Ash Content <1% <1% 1–3% Low ash reduces die deposits
Thin Film Opacity (<15 μm) ✓ Achievable ~ Marginal ✗ Insufficient Critical for ultra-thin mulch film
Effect on Film Mechanics Minimal at ≤2% Minimal at ≤3% Moderate at 4–5% Higher dosage dilutes host resin properties
Best Suited For Thin film, pipe, co-ex layer Agricultural / general film Low-spec commodity film Match grade to gauge and process
Application Reference

Dosage & Processing Guide for N4066

Recommended starting parameters — verify with a line trial before full production

Dosage by Application
Thin Mulch Film (<15 μm)1.5–2.0%
Standard Mulch Film (≥20 μm)1.0–1.5%
Black Protective Packaging Film1.5–2.5%
PE Pipe (UV protection)2.0–3.0%
Co-extrusion Black Layer1.5–2.0%
Injection Moulded Parts1.0–2.0%
Thermoforming Sheet1.5–2.5%
Processing Notes for N4066
Temp Range160–225 °C for PE-based processing. Higher CB loading generates slightly more shear heat — monitor melt temperature at die with thermocouple during initial trial.
Thin Film CautionAt gauges below 12 μm, start at 1.5% and assess opacity before increasing. Over-dosing at very thin gauges can marginally affect elongation properties.
Screw ConfigurationBarrier screws with distributive mixing elements are preferred to ensure even distribution of high-concentration CB at low addition volumes.
Gravimetric DosingRecommended for N4066 at dosage below 1.5%, as the high CB concentration means small weighing errors have a proportionally larger effect on final film opacity.
PurgingHigh CB content requires thorough purging when switching to natural or light-coloured materials. Use HDPE purging compound for 12–15 min at full screw speed.
Technical FAQ

Common Questions About N4066

Engineering team responses to pre-purchase and technical enquiries

Is N4066 the right choice over N4032 for standard 20–25 μm agricultural film?
For 20–25 μm film, both N4032 and N4066 achieve full opacity within the 1–3% dosage range. N4066 becomes the more economical choice when high-volume production makes dosage reduction meaningful, or when line configuration makes precise low-dosage delivery easier than higher addition rates. For buyers running thin-gauge film below 15 μm, N4066 is the preferred grade as N4032 may not achieve complete blackout at equivalent dosage.
Does the 46% carbon black content affect the mechanical properties of the finished film more than N4032?
No — because N4066 is used at a lower dosage rate (1–2% vs 2–3% for N4032), the total CB and carrier introduced into the host resin matrix is similar or lower. The net mechanical impact on tensile strength, elongation, and tear resistance of the finished film is comparable between the two grades at recommended usage levels.
Can N4066 be used in pipe extrusion applications requiring CB content in the pipe wall?
Yes. For black PE pipe, standards such as ISO 4427 specify a minimum carbon black content in the finished pipe wall (typically 2.0–2.5%). N4066's high concentration means fewer kilograms of masterbatch are required per ton of pipe compound to reach this target, reducing cost. Contact E-LUCK's technical team with your pipe specification for dosage calculation assistance.
How is N4066 tested for hiding power before shipment?
Each production batch is evaluated by producing a standard test film at defined dosage conditions and measuring optical density. The dispersion grade is also checked under ISO 18553 as a reference framework. CB content is confirmed by combustion analysis. All results are reported in the batch Certificate of Analysis.
Is there a risk of colour variation between batches at N4066's high CB concentration?
Colour variation risk at high CB concentrations is primarily controlled by the consistency of the raw carbon black grade and the compounding process parameters. E-LUCK uses fixed, qualified CB sources with long-term supply agreements and maintains tight tolerance on compounding temperature profiles and screw configuration. Batch-to-batch CB content tolerance of ±2% is maintained as a specification limit.
Manufacturer Advantage

Six Reasons to Source N4066 Directly from E-LUCK

What direct factory supply means for high-specification masterbatch procurement

01
High-Concentration Formulation Expertise
Producing stable, processable masterbatch at 46% CB requires precise dispersant selection and compounding control. E-LUCK's in-house formulation capability means this is not an outsourced process — every batch is produced under the same validated compounding conditions.
02
Batch CoA for Every Shipment
CB content, MFI, moisture, ash, and dispersion grade are reported on a Certificate of Analysis issued for each production batch. Your QC team can verify against specification without relying on third-party test claims.
03
Dosage Optimisation Support
E-LUCK's technical team can assist with dosage calculations for your specific film gauge and opacity targets, including CB content estimation in the finished film wall for pipe compliance purposes.
04
Custom Concentration Options
If N4066 at 46% does not match your specific process requirements, E-LUCK can develop custom concentrations (40–50% CB range) with matched carrier MFI for buyers with recurring volume commitments.
05
Qualification Sample Programme
Pre-production samples are available for line trials. Samples are produced under identical compounding conditions to commercial batches, ensuring that trial results accurately predict full-volume performance.
06
Flexible Bag Options
25 kg PE or KP bags available to suit storage and transit conditions. KP (kraft paper + PE liner) bags provide additional moisture protection for shipments to tropical markets or buyers with open warehouse storage.
About Us
E-LUCK .
E-LUCK .

As China High Hiding Black Concentrated Masterbatch Factory and China High Hiding Black Concentrated 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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