DGK-LDPE DD4-5 Conductive PE Data Sheet: 10³-10⁵ Ω Surface Resistance
A data-sheet interpretation of DGK-LDPE DD4-5 conductive LDPE, connecting 10³-10⁵ Ω surface resistance, carbon black network design, film processing and ESD packaging validation.
Buyer and engineer FAQ
Questions engineers often ask about this material route
Where can LDPE / PE with a conductive plastic requirement be used?
Typical fields include ESD trays, electronic housings, fixtures, EMI parts and antistatic logistics parts. For this article, DEYU would first confirm the working environment, wall thickness, expected lifetime and whether DGK-LDPE DD4-5 product page matches the part geometry or needs formulation adjustment.
What are the main performance indicators for the "conductive plastic" target on LDPE / PE?
Focus on surface resistance, volume resistance, dispersion uniformity, impact strength and molding stability. Buyers should ask for data on molded parts, not only pellet data, because gate position, filler orientation and thickness can change the final value.
What should engineers watch during injection molding or processing?
For LDPE / PE, a practical starting window is 160-210°C melt / 20-45°C mold. Avoid excessive filler loading, control weld lines and verify resistance on the molded part. Final parameters should follow part thickness, gate design and the actual machine.
What details help DEYU recommend DGK-LDPE DD4-5 product page more accurately?
Send the current resin or grade, drawing or photo, wall thickness, annual quantity, target standard, failure mode and required color. If a reference grade already passed one test but failed in production, include both data sets.
For a precise recommendation, share the part drawing, base resin, target performance, processing method and test standard with DEYU.
Related DEYU references: DGK-LDPE DD4-5 product page and conductive LDPE / PE application guide.
This product page addresses packaging engineers, film extruders, and procurement specialists who need a high-conductivity LDPE compound for ESD packaging, films, bags, and thermoformed trays. The page establishes DGK-LDPE DD4-5 as a reliable conductive PE achieving surface resistivity of 10³–10⁵ Ω — suitable for electronics packaging and static-sensitive industrial applications.
Product Overview
DGK-LDPE DD4-5 is DEYU's high-conductivity low-density polyethylene (LDPE) compound, engineered for extrusion and injection molding applications requiring reliable static dissipation. With surface resistivity in the 10³–10⁵ Ω range, this material bridges the gap between conventional anti-static LDPE (10⁹–10¹¹ Ω) and ultra-conductive grades, delivering consistent ESD protection for packaging, films, and industrial components.
What 10³–10⁵ Ω surface resistivity means in context:
| Material Type | Typical Surface Resistivity | Comparison to DGK-LDPE DD4-5 |
|---|---|---|
| Standard LDPE (unfilled) | >10¹² Ω | Millions of times higher |
| Anti-static LDPE | 10⁹–10¹¹ Ω | 10,000–100,000× higher |
| Dissipative LDPE | 10⁶–10⁹ Ω | 10–1,000× higher |
| DGK-LDPE DD4-5 | 10³–10⁵ Ω | Baseline |
| Highly conductive grades | 10¹–10² Ω | Comparable |
DGK-LDPE DD4-5 achieves surface resistivity in the 10³–10⁵ Ω range — 1–3 orders of magnitude lower than standard dissipative conductive LDPE (10⁶–10⁹ Ω). This ultra-low resistivity enables applications where rapid static charge dissipation is critical for protecting sensitive electronic components.
Key applications:
ESD bags and films for electronic components
Thermoformed ESD trays and blisters
FIBC liners for hazardous powders
Anti-static packaging for semiconductor handling
Cleanroom liners and waste sacks
Conductive extrusion profiles and tubing
Injection-molded ESD containers and component carriers
Key features:
| Feature | Benefit |
|---|---|
| Surface resistivity 10³–10⁵ Ω | Reliable ESD protection for sensitive components |
| LDPE base resin | Excellent flexibility, chemical resistance, and processability |
| Extrusion and injection molding compatible | Versatile processing options |
| Permanent conductivity | Humidity-independent performance — no surface migration or wash-out |
| High elongation (410%) | Excellent ductility for film and bag applications |
| Lightweight (0.91 g/cm³) | Cost-effective shipping and handling |
Technical Foundation — How DGK-LDPE DD4-5 Achieves Stable Conductivity
1. Conductive Carbon Black Network
DGK-LDPE DD4-5 utilizes a carefully optimized carbon black conductive network dispersed throughout the LDPE matrix. The carbon black particles form a percolated network that provides continuous conductive pathways through the insulating polymer. This network is permanent, humidity-independent, and does not migrate to the surface or wash out over time — unlike ionic antistatic additives that lose effectiveness in low-humidity conditions.
2. LDPE Matrix — The Right Balance
LDPE was selected as the base resin for its unique combination of properties:
| Property | Value | Advantage |
|---|---|---|
| Density | 0.91 g/cm³ | Lightweight — reduces shipping costs |
| Flexibility | Excellent | Suitable for films, bags, and flexible packaging |
| Chemical resistance | Good | Withstands cleaning agents and industrial environments |
| Processability | Excellent | Compatible with blown film, cast film, extrusion, and injection molding |
| Elongation | 410% | High ductility for demanding packaging applications |
3. Processing Flexibility
DGK-LDPE DD4-5 supports multiple processing methods, making it adaptable to different manufacturing requirements:
| Processing Method | Suitability | Typical Applications |
|---|---|---|
| Blown film | Excellent | ESD bags, liners, films |
| Cast film | Excellent | Thin packaging films |
| Extrusion | Excellent | Sheets, profiles, tubing |
| Injection molding | Good | Trays, containers, components |
4. Permanent, Humidity-Independent Conductivity
Unlike ionic antistatic coatings or additives that depend on ambient humidity for performance, carbon black-filled conductive LDPE provides permanent, volume-conductive ESD protection that is completely independent of ambient humidity. This is a critical advantage for packaging applications where humidity conditions may vary during storage and transport.
5. Surface Resistivity of 10³–10⁵ Ω
The 10³–10⁵ Ω surface resistivity range provides:
Rapid static dissipation — charges are safely conducted away before accumulating to damaging levels
Dust prevention — reduced electrostatic attraction minimizes dust accumulation on surfaces
ESD protection — protects sensitive electronic components during handling and transport
Grounding capability — provides a low-resistance path to ground for charge dissipation
Product Data
Core Specifications (from Certificate of Analysis):
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Product Model | DGK-LDPE DD4-5 (DD4-5A1) | — | — |
| Base Resin | LDPE | — | — |
| Appearance | Black | — | — |
| Density | 0.91 g/cm³ | GB/T 1033-1986 | Lightweight — cost-effective shipping |
| Surface Resistivity | 10³–10⁵ Ω | GB/T 1401-2002 | Ultra-low — stable ESD protection |
| Flammability | HB | UL-94 GB/T 2408-1996 | — |
| Processing Methods | Extrusion, injection molding | — | Versatile processing |
All listed data are reference values from the test direction stated in the certificate of analysis.
Mechanical Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Tensile Strength | 18 MPa | GB/T 1040-2006 | — |
| Yield Strength | 8.7 MPa | GB/T 1040-2006 | — |
| Bending Strength | 7.4 MPa | GB/T 9341-2008 | — |
| Flexural Modulus | 360 MPa | GB/T 9341-2008 | Moderate flexibility |
| Charpy Notched Impact | 12 kJ/m² | GB/T 1043.1-2008 | Good impact resistance |
| Izod Notched Impact | No break | GB/T 1843-2000 | Exceptional ductility |
| Elongation at Break | 410% | GB/T 1040-2006 | Excellent ductility for films and bags |
All listed data are reference values from the test direction stated in the certificate of analysis.
Thermal and Flow Properties:
| Property | Value | Test Method | Notes |
|---|---|---|---|
| Melt Flow Rate (MFR) | 4.5 g/10min | GB/T 3682-2000 | Good flow for extrusion and molding |
| Heat Deflection Temperature | 95°C | GB/T 1633-2000 | A method — 120°C |
| Drying Temperature | 90°C | — | Before processing |
| Drying Time | 4–5 hours | — | — |
| Processing Temperature | 225–230°C | — | Extrusion, injection molding |
| Mold Temperature | 80°C | — | Recommended |
All listed data are reference values from the test direction stated in the certificate of analysis.
Application Deep Dive
1. ESD Bags and Films
DGK-LDPE DD4-5 is ideal for manufacturing ESD bags and films for electronic components. The 10³–10⁵ Ω surface resistivity provides rapid static dissipation, protecting sensitive ICs, semiconductors, and electronic assemblies during storage and transport.
Key features for film applications:
High elongation (410%) — excellent tear resistance and durability
Good melt strength — supports blown film processing
Uniform conductivity — consistent ESD protection across the film surface
Light-tight — carbon black blocks light, protecting light-sensitive components
2. Thermoformed ESD Trays and Blisters
For thermoformed trays and blisters, DGK-LDPE DD4-5 offers the right balance of formability and conductivity.
Key features for thermoforming:
Good formability — can be formed into complex shapes
Consistent conductivity — maintains ESD protection after forming
Impact resistance — 12 kJ/m² Charpy impact protects components
Lightweight — reduces shipping costs
3. FIBC Liners and Hazardous Material Packaging
DGK-LDPE DD4-5 is suitable for FIBC liners and packaging for flammable or explosive materials that require static dissipation.
Key features for hazardous material packaging:
Surface resistivity 10³–10⁵ Ω — effective grounding for hazardous materials
Permanent conductivity — does not degrade over time
Chemical resistance — withstands aggressive materials
Moisture protection — barrier properties for sensitive contents
4. Injection-Molded ESD Components
DGK-LDPE DD4-5 can be injection molded into ESD-safe containers, trays, and component carriers.
Key features for injection molding:
Good flow (MFR 4.5 g/10min) — fills complex geometries
No break Izod impact — exceptional toughness
Dimensional stability — consistent part quality
Processing Guidelines
Recommended Processing Parameters:
| Parameter | Value | Notes |
|---|---|---|
| Drying Temperature | 90°C | — |
| Drying Time | 4–5 hours | Ensure thorough drying before processing |
| Processing Temperature | 225–230°C | Extrusion, injection molding |
| Mold Temperature | 80°C | Recommended |
Key Processing Considerations:
| Consideration | Importance | Guidance |
|---|---|---|
| Pre-drying | Critical | Moisture can affect surface quality; dry at 90°C for 4–5 hours |
| Temperature control | High | Maintain processing temperature within 225–230°C range |
| Shear control | Moderate | Optimize screw speed to prevent filler network disruption |
| Cooling | Moderate | Uniform cooling for dimensional stability |
Drying Requirement:
DGK-LDPE DD4-5 contains conductive fillers that can be affected by moisture. Proper drying is essential:
Drying temperature: 90°C
Drying time: 4–5 hours
Moisture content target: <0.1%
Film Extrusion:
For blown film extrusion, DGK-LDPE DD4-5 provides:
Good melt strength for bubble stability
Consistent gauge control
Uniform conductivity across the film width
Injection Molding:
For injection molding, DGK-LDPE DD4-5 provides:
Good flow for complex geometries
Low warpage
Consistent part-to-part conductivity
Customer Validation Scenario
Context: A manufacturer of ESD-safe packaging for semiconductor components was producing anti-static bags from a standard LDPE film. The film had surface resistivity of 10⁶–10⁹ Ω/sq — acceptable for general ESD protection but insufficient for the customer's requirements for high-sensitivity components. The customer required surface resistivity below 10⁶ Ω/sq.
Problem analysis:
| Parameter | Existing Material | Requirement |
|---|---|---|
| Surface Resistivity | 10⁶–10⁹ Ω/sq | <10⁶ Ω/sq |
| Film Thickness | 0.05 mm | 0.05 mm |
| Application | Semiconductor packaging | High-sensitivity component protection |
Root cause: The existing LDPE film used an ionic antistat that provided only moderate static dissipation. For high-sensitivity components, the resistivity was too high to provide adequate protection.
DEYU solution — DGK-LDPE DD4-5:
DEYU recommended switching to DGK-LDPE DD4-5, offering:
Surface resistivity of 10³–10⁵ Ω — 10–1,000× lower than the existing material
Permanent conductivity — humidity-independent performance
Excellent film processability — compatible with existing blown film equipment
High elongation (410%) — good tear resistance for bag applications
Trial structure:
| Parameter | Value |
|---|---|
| Trial Quantity | 500 m² of film (5 extrusion runs) |
| Monthly Production | 10,000 m² |
| Target Surface Resistivity | <10⁶ Ω/sq |
| Film Thickness | 0.05 mm |
Validation Data Table (customer internal trial structure):
| Parameter | Existing Material (Ionic Antistat) | DGK-LDPE DD4-5 | Target | Improvement |
|---|---|---|---|---|
| Surface Resistivity (Ω/sq) | 5×10⁸ | 4×10⁵ | <10⁶ | 1,000× lower |
| Resistivity at 25% RH (Ω/sq) | 8×10¹⁰ | 5×10⁵ | <10⁶ | Stable (humidity-independent) |
| Film Tensile Strength (MPa) | 16 | 18 | >15 | Stable |
| Elongation at Break (%) | 350 | 410 | >300 | Improved |
| Bag Tear Resistance | Good | Good | Good | Stable |
| Visual Quality | Good | Excellent | Good | Improved |
| Extrusion Scrap Rate | 3% | 2% | <3% | Reduced |
Result Interpretation:
Existing material analysis: The ionic antistat LDPE provided marginal ESD protection that varied with humidity. At low humidity, resistivity increased by two orders of magnitude, creating a risk for high-sensitivity components.
DGK-LDPE DD4-5 solution: The carbon black-filled LDPE provided stable, humidity-independent conductivity at 10³–10⁵ Ω — 1,000× lower than the existing material. The film processability was excellent, with improved elongation (410%) and reduced scrap rate. The customer approved the material for full production.
DEYU's contribution: DEYU provided a direct material replacement that delivered the required ultra-low surface resistivity without compromising film properties or processing. The permanent conductivity eliminated humidity-related performance variation.
Next steps: Full production validation across all bag sizes. DEYU can provide ongoing technical support and in-process resistivity monitoring protocols.
Suitable Applications
| Application | Why DGK-LDPE DD4-5 | Key Requirement |
|---|---|---|
| ESD bags for ICs, semiconductors | Ultra-low resistivity + film processability | 10³–10⁵ Ω, humidity-independent |
| Thermoformed ESD trays | Formability + conductivity | 10³–10⁵ Ω, impact resistance |
| FIBC liners (hazardous powders) | Grounding + chemical resistance | 10³–10⁵ Ω, permanent conductivity |
| Anti-static packaging films | Stable ESD protection + flexibility | 10³–10⁵ Ω, high elongation |
| Cleanroom liners, waste sacks | Low particle generation + ESD | 10³–10⁵ Ω, cleanroom compatibility |
| Conductive extrusion profiles | Conductivity + dimensional stability | 10³–10⁵ Ω, extrusion processability |
| Injection-molded ESD containers | Impact resistance + conductivity | 10³–10⁵ Ω, toughness |
| Component carriers (injection molded) | Dimensional stability + ESD | 10³–10⁵ Ω, no break impact |
What Buyers Should Provide for Selection
To receive a precise recommendation for DGK-LDPE DD4-5 applications, buyers should provide:
Resistivity requirement — surface or volume resistivity range (Ω/sq or Ω·cm) with test standard
Application description — film, bag, tray, liner, or other?
Processing method — blown film, cast film, extrusion, thermoforming, injection molding
Part geometry — dimensions, wall thickness, stretch ratio (if thermoforming)
Film/sheet thickness — target thickness range
Mechanical requirements — tear strength, puncture resistance, flexibility
Environmental conditions — temperature range, chemical exposure, humidity
Regulatory requirements — RoHS, REACH, food contact, ATEX
Production volume — annual or monthly quantity
Current issues — what problems need solving with the existing material?
DEYU can support with:
Grade selection based on application requirements
Processing parameter recommendations for consistent conductivity
Small-batch validation (25–100 kg) with full electrical and mechanical testing
Technical support during film extrusion and molding trials
In-process quality monitoring protocols
Conclusion
DGK-LDPE DD4-5 is DEYU's high-conductivity LDPE compound engineered for ESD packaging and industrial applications requiring surface resistivity of 10³–10⁵ Ω. Combining LDPE's inherent flexibility, chemical resistance, and processability with stable, permanent carbon-based conductivity, this grade delivers reliable ESD protection for sensitive electronic components, hazardous materials, and cleanroom applications.
Key takeaways:
Ultra-low resistivity — surface resistivity of 10³–10⁵ Ω — 1,000× lower than standard dissipative LDPE
Permanent, humidity-independent conductivity — carbon black network provides stable ESD protection regardless of environmental conditions — unlike ionic antistats that lose effectiveness at low humidity
Excellent mechanical properties — tensile strength of 18 MPa, elongation at break of 410%, and no-break Izod impact — providing the toughness and ductility required for demanding packaging applications
Processing flexibility — compatible with blown film, cast film, extrusion, thermoforming, and injection molding — one grade for multiple manufacturing methods
Lightweight — density of 0.91 g/cm³ — cost-effective shipping and handling
Application-proven — validated in ESD bags, films, trays, liners, and injection-molded components
Not for every application — for applications requiring lower conductivity (10⁶–10⁹ Ω/sq for general ESD), DEYU offers other grades with different resistivity targets
DGK-LDPE DD4-5 is available for small-batch validation and full production orders. DEYU's technical team can provide application-specific guidance, process optimization support, and full test documentation for qualification and validation.