40μm Black CPE Base Film, fade-resistant masterbatch, uniform gauge, opaque, high tensile strength, good tear resistance, smooth surface, lamination-compatible, optional anti-static.
Price:
Negotiable
MOQ:
1000kg
Delivery Time:
10 working days
Brand:
HSF
Product Description
40μm Black Cast Polyethylene (CPE) Base Film
Production Process
Crafted with precision cast extrusion tailored for thin-gauge performance, the 40μm black CPE base film starts with high-grade LDPE resin, homogenously blended with high-concentration, light-fast black masterbatch to ensure uniform opacity and consistent color. The compound is melted in a temperature-regulated extruder (160-180℃) for full fusion, then extruded through a high-precision flat die and cast onto a mirror-polished cooling roller for rapid, controlled solidification. Post-extrusion, precise edge trimming, constant tension calibration, and static neutralization yield tight, defect-free rolls--guaranteeing consistent 40μm gauge, opaque black hue, and a smooth surface ideal for lightweight industrial converting.
Key Features
- 40μm thin-gauge structure with ±4% thickness tolerance
- Opaque black color with exceptional light-blocking capability
- Fade-resistant and UV protective properties
- Balanced tensile strength and good tear resistance
- Excellent flexibility and low-temperature toughness (-10℃ to 60℃)
- Ultra-smooth surface for seamless lamination and coating
- Optional anti-static treatment available
Product Advantages
Distinguished by its 40μm thin-gauge structure and opaque black color, this film excels in lightweight applications while providing effective light shielding--ideal for products requiring UV protection or privacy. Its thin profile ensures easy processing and cost savings, while the uniform black hue enables quick visual identification in production lines. Exceptional batch-to-batch color and thickness consistency reduces conversion waste, and its cost-effective formulation combines reliable performance with affordability. Non-toxic, odorless, and industry-standard compliant, it supports versatile lightweight converting and steady bulk supply.
Application Environment
Optimized for lightweight industrial scenarios, the 40μm black CPE base film excels in light-blocking industrial packaging, electronic component wrapping, privacy protection films, and lightweight surface protection. It performs reliably in dry, normal-temperature environments and moderate low-temperature storage (≥-10℃), maintaining stability during high-speed slitting, lamination, and coating. Ideal for manufacturers seeking a lightweight, opaque black base film--perfect for applications requiring light shielding, easy processability, and cost-effectiveness, such as electronic part packaging and privacy wrapping.
Technical Specifications
| Test Item | Unit | Industry Standard Requirement (40μm Black CPE) | Our Product Set Standard | Actual Test Result | Qualification Judgment |
|---|---|---|---|---|---|
| Total Thickness of Base Film (No Embossing) | μm | 40±5 | 40±3 | 39.8 (LDPE 11.9/LLDPE 27.9) | Qualified |
| Blackness Uniformity | - | No obvious color difference, uniform coloring | No color difference, uniform dispersion of masterbatch | No color difference, uniform masterbatch dispersion | Qualified |
| Light Shielding Rate | % | ≥98 | ≥99 | 99.3 | Qualified |
| Tensile Strength (Longitudinal/Transverse) | MPa | ≥16/≥14 | ≥18/≥16 | 19.1/17.2 | Qualified |
| Elongation at Break (Longitudinal/Transverse) | % | ≥310/≥290 | ≥330/≥310 | 340/321 | Qualified |
| Heat Sealing Strength (120℃, 0.3MPa, 1s) | N/15mm | ≥8.5 | ≥10.5 | 11.2 | Qualified |
| Surface Tension (Corona Treated Surface) | mN/m | ≥36 | ≥38 | 38.9 | Qualified |
| Tear Resistance (Longitudinal/Transverse) | N | ≥13/≥11 | ≥14/≥12 | 14.7/12.8 | Qualified |
| Moisture Barrier Performance (23℃, 85%RH) | g/(m²*24h) | ≤5.8 | ≤5.4 | 5.2 | Qualified |
| Oil Resistance (Soaked in n-hexane for 24h) | - | No obvious swelling or discoloration | No swelling, no discoloration, no adhesion, no masterbatch precipitation | No swelling, no discoloration, no adhesion, no masterbatch precipitation | Qualified |
| Hardness (Shore D) | HD | 50±5 | 50±3 | 49.7 | Qualified |
| Weather Resistance (UV Aging for 72h) | - | No obvious fading, cracking or discoloration | No fading, no cracking, no deformation, blackness retention rate ≥98% | No fading, no cracking, no deformation, blackness retention rate 98.5% | Qualified |
| Environmental Protection Performance (Food Contact Grade) | - | Complies with GB 4806.7-2016 | Complies with GB 4806.7-2016, no peculiar smell, no harmful precipitation, non-toxic black masterbatch | Complies with GB 4806.7-2016, no peculiar smell, no harmful precipitation, non-toxic black masterbatch | Qualified |
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Company
Shanghai HSF Materials Technology Co., Ltd.
Location
Area D, No. 218 North Huting Road, Songjiang District, 201600 Shanghai, China
Contact Person
Bryan J. Lee