Name: Long-Lasting Appearance And High Hiding Black Masterbatch
Rating: 5 (99 reviews)

Long-Lasting Appearance And High Hiding Black Masterbatch

This black masterbatch is made from a polyethylene (PE) base material, combined with carbon black and calcium carbonate fillers. The carbon black concentration is approximately 32%, ensuring uniform coloration and strong hiding power. The product exhibits excellent compatibility with the carrier during processing, without affecting the mechanical properties and processing characteristics of the raw materials. It also enhances the weathering and aging resistance of the final product, ensuring that plastic products such as wire, tubing, and sheet maintain structural stability and consistent appearance over long-term use.
This durable, high-hiding black masterbatch is suitable for blown film, pipe extrusion, injection molding, and other plastic processing techniques. It imparts a uniform, deep black hue to plastic products while improving their lightfastness and resistance to environmental stresses, extending the product's lifespan. The masterbatch's excellent dispersibility prevents color spots or localized color variations, ensuring processing stability and consistent product appearance.

Parameter

# BLACK MASTERBATCH 1209B

1209B is made of PE, carbon black with calcium carbonate filler. Carbon black concentration is around32%. Applicable for blowing film, pipe extrusion, and injection.

Ingredients	Carbon Black: 32%±1
Ingredients	ASH: <29%
Usage	Mixed with materials.
Dosage	suggested 1-3%.
Technical Index	Density: <2.0g/cm3
	Melting Speed:>10g/10min(21.6kg/190℃)
	Moisture:<0.50%
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.

Wire / Pipe / Film — Sheet, Profile & Wire Series

Long-Lasting Appearance & High Hiding Black Masterbatch — Grade 1209B

Grade 1209B is built for the specific demands of wire and cable jacketing, tubing, and multi-purpose extrusion applications where two requirements must coexist across the full product service life: high hiding power that covers the substrate completely at practical letdown rates, and appearance stability that holds the uniform black finish for years without surface chalking, fading, or micro-cracking from UV and environmental exposure.

At 32% carbon black with a controlled calcium carbonate filler loading (ash <29%), 1209B is formulated to deliver both functions from a single masterbatch addition. The CaCO₃ filler contributes to the hiding power through its light-scattering effect — inorganic particles at the surface layer reflect ambient light before it can transmit through the compound — while the CB provides the UV-absorbing black colorant. The combined optical effect of both components at 2–3% dosage produces hiding coverage that a CB-only formulation at the same concentration would not achieve on its own.

The PE carrier ensures compatibility across the full range of polyolefin extrusion substrates — LDPE, LLDPE, HDPE, and PE/PP blends — without introducing a foreign polymer phase that could create stress points in wire insulation or pipe wall under flexural or impact loading.

32%

Carbon Black + CaCO₃ Hiding System

Ash Content<29%

MFR>10 g/10min

Density<2.0 g/cm³

Moisture<0.50%

Dosage1–3%

Technical Data Sheet

1209B — Complete Parameter Reference

Parameter	Specification	Method / Notes
Grade Code	1209B	Wire / Pipe / Film — Long-Lasting High Hiding Series
Carrier Resin	Polyethylene (PE)	Compatible with LDPE, LLDPE, HDPE; wire/cable and pipe compound substrates
Carbon Black Content	32% ± 1%	Primary UV absorber and colorant; uniform black coverage
Filler (CaCO₃)	Present — ash <29%	Secondary hiding power contributor via light scattering at surface layer
Ash Content	<29%	ISO 3451 — controlled CaCO₃ loading for hiding without excessive viscosity increase
Density	<2.0 g/cm³	ISO 1183
Melt Flow Rate	>10 g/10 min	190°C / 21.6 kg — processable across standard wire and pipe extrusion conditions
Moisture Content	<0.50%	Wire jacketing: moisture above 0.5% produces surface pinholes at high line speeds
Recommended Dosage	1%–3%	2% standard for most wire/cable jacket and pipe applications
Compatible Processes	Blown film, pipe extrusion, injection molding	Wire and cable extrusion is the primary validated application context
Packaging	25 kg / bag (KP or PE bag)	Sealed; dry, cool warehouse; avoid UV and moisture during storage

Hiding Power

How the Dual-Component Hiding System Works — CB + CaCO₃

Product Lifecycle

From Raw Material to Long-Term Outdoor Service — What 1209B Does at Each Stage

Pellet Storage

Sealed bag moisture barrier keeps 1209B below 0.5% moisture during warehouse storage. CaCO₃ filler is mildly hygroscopic; hermetic sealing prevents moisture uptake in humid climates. Shelf life: 12 months sealed.

Hopper Blending

High MFR (>10 g/10min) ensures 1209B pellets melt and integrate before the die in standard PE extrusion lines at 180–220°C. No pre-compounding needed; hopper dry-blend at target dosage is sufficient.

Extrusion / Die

CB and CaCO₃ are uniformly distributed through the extrudate cross-section by screw shear. No die buildup observed at 1–3% dosage in standard single-screw wire jacketing lines at line speeds up to 200 m/min.

Installation

Deep, uniform black provides the standard wire/cable jacket appearance for electrical identification and UV protection during outdoor installation handling. Full opacity confirmed at 2% dosage in 25mm diameter HDPE conduit.

Long-Term Service

CB absorbs UV to prevent surface chalking; CaCO₃ moderates thermal stress. Products maintain consistent black appearance through multi-year outdoor service, meeting the "long-lasting appearance" product designation in real-world exposure conditions.

Process Compatibility

1209B Across Four Standard Plastic Processing Methods

Blown Film

LDPE and LLDPE blown film for industrial sheeting, protective wrap, and agricultural applications. At 2% dosage, full opacity at gauges above 20 µm. No neck-ring buildup at standard BUR ratios.

Pipe Extrusion

HDPE drainage and conduit pipe (non-pressure applications). The CaCO₃ filler at 2% dosage contributes minor nucleating benefit to the HDPE wall structure. Full black coloring at standard wall thickness.

Wire & Cable Jacketing

Primary validated application. PE and LLDPE jacket extrusion at 160–220°C. No surface pinholes at <0.5% moisture. Suitable for single-layer and co-extrusion jacket configurations up to 200 m/min line speed.

Injection Molding

PE and PP injection of housings, fittings, and enclosures requiring high hiding power at affordable material cost. Standard injection conditions for the base resin; no barrel temperature adjustment needed for 1209B at 1–3%.

FAQ

Technical Questions on Grade 1209B

What does "high hiding" mean in practice for wire jacketing, and how does 1209B achieve it?+

In wire and cable jacketing, "hiding power" refers to the ability of the black jacket compound to completely mask the appearance of the conductor or insulation layer beneath — so that the finished cable looks uniformly jet-black throughout its length with no translucent areas, color streaks from the underlying conductor color, or visible substrate texture. 1209B achieves high hiding through a dual mechanism: the 32% CB loading provides primary light absorption that prevents UV and visible-spectrum light from penetrating the jacket wall, and the CaCO₃ filler (ash <29%) adds a surface light-scattering layer that creates an optically dense skin before light even reaches the bulk CB absorption zone. The combined effect at 2% dosage in standard LLDPE jacket compound produces hiding coverage comparable to what a CB-only masterbatch would require 3–4% dosage to achieve.

Does the CaCO₃ filler in 1209B affect the flexibility of wire and cable jackets?+

At 2% dosage of 1209B into a LLDPE or LDPE cable jacket compound, the total CaCO₃ contribution to the jacket is approximately 0.58% by weight (based on <29% ash at 2% addition). At sub-1% mineral loading, the effect on jacket flexibility is negligible — mineral fillers only produce measurable stiffness increase in polymer compounds when added at 5% by weight or higher. Standard cable jacket flexibility tests (ASTM D882, IEC 60811-1) show no detectable change in elongation at break or modulus in LLDPE compounds at the CaCO₃ loading levels contributed by 1209B at normal dosage rates. For ultra-flexible cable insulation with very tight flexibility specifications (medical-grade or robotics cable), contact E-LUCK's technical team for a flexibility-confirmed compound trial before production qualification.

Can 1209B be used in halogen-free flame retardant (HFFR) cable jacket compounds?+

1209B is compatible with halogen-free flame retardant PE compounds, but the interaction between the CaCO₃ filler in 1209B and the inorganic flame retardant system in HFFR compounds requires attention. HFFR compounds typically contain high loadings of metal hydroxides (ATH, MDH) at 50–70% by weight, which already contribute significant inorganic ash content to the compound. Adding 1209B at 2% introduces an additional 0.58% CaCO₃ — a small addition relative to the existing HFFR filler loading. For HFFR compounds where the total inorganic loading is tightly specified for LOI or FR classification, verify that the marginal CaCO₃ introduction from 1209B does not push the compound outside its validated FR loading range. For most standard HFFR cable jacket compounds, the 0.58% addition is within the tolerance of the FR system and does not require formulation adjustment.

Wire & Cable Jacket Specification — Request Technical Confirmation

Provide your jacket compound base resin, line speed, die configuration, and target opacity specification. E-LUCK will confirm 1209B dosage and confirm the hiding power result for your specific substrate.

Request Sample Technical Inquiry

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